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TK112xxA
VOLTAGE REGULATOR WITH ON/OFF SWITCH FEATURES
High Voltage Precision at 2.4% Active High On/Off Control Very Low Dropout Voltage 80 mV at 30 mA Very Low Noise Very Small SOT-23L or SOT-89-5 Surface Mount Packages s Internal Thermal Shutdown s s s s s s Short Circuit Protection
APPLICATIONS
s s s s s s s s s Battery Powered Systems Cellular Telephones Pagers Personal Communications Equipment Portable Instrumentation Portable Consumer Equipment Radio Control Systems Toys Low Voltage Systems
DESCRIPTION
The TK112xxA is a low dropout linear regulator with a builtin electronic switch. The internal switch can be controlled by TTL or CMOS logic levels. The device is in the ON state when the control pin is pulled to a logic high level. An external capacitor can be connected to the noise bypass pin to lower the output noise level to 30 Vrms. An internal PNP pass transistor is used to achieve a low dropout voltage of 70 mV (typ.) at 30 mA load current. The TK112xxA has a very low quiescent current of 180 A at no load and 1 mA with a 30 mA load. The standby current is typically 100 nA. The internal thermal shutdown circuitry limits the junction temperature to below 150 C. The load current is internally monitored and the device will shutdown in the presence of a short circuit or overcurrent condition at the output. The TK112xxA is available in either 6 pin SOT-23L or 5 pin SOT-89-5 surface mount packages. TK112XXA
CONTROL
P50
1 2
6 5 4
VIN GND VOUT
GND
NOISE 3 BYPASS
TK112xxA * PO
NOISE BYPASS GND CONTROL
1 2 3
6 5 4
VOUT GND VIN
BLOCK DIAGRAM
ORDERING INFORMATION TK112
Voltage Code
A
Tape/Reel Code Package Code
VIN CONTROL
S
S
S
S
S
VOUT
THERMAL PROTECTION
S
S
-
S S
+ -
S
S
+
S S S
VOLTAGE CODE
20 = 2.0 V* 21 = 2.1 V 22 = 2.22 V* 25 = 2.5 V* 28 = 2.8 V* 29 = 2.9 V 30 = 3.0 V* 31 = 3.1 V* 33 = 3.3 V* 35 = 3.5 V* 36 = 3.6 V 38 = 3.8 V 40 = 4.0 V* 42 = 4.2 V 45 = 4.5 V* 48 = 4.8 V* 49 = 4.9 V 50 = 5.0 V* 55 = 5.5 V
PACKAGE CODE
M: SOT-23L U: SOT-89-5
TAPE/REEL CODE
BX : Bulk/Bag TL : Tape Left (SOT-23L) TB : Tape Bottom (SOT-89-5)
S
BANDGAP REFERENCE
S S S S S
GND
NOISE BYPASS
* Indicates voltage is available in a SOT-89-5 package.
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Page 1
TK112xx A
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 16 V Power Dissipation SOT-23L (Note 1) ................. 400 mW Power Dissipation SOT-89-5 (Note 2) ................ 800 mW Storage Temperature Range ................... -55 to +150 C Operating Temperature Range ...................-30 to +80 C Lead Soldering Temp. (3 sec.) .............................. 230 C Junction Temperature ........................................... 150 C
TK11220A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 3.0 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 3 V 8 V IO = 5 mA 60 mA (Note 3) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA IO = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.2 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 1.7 V 180 1.92 2.00 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 2.08 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1: Note 2: Note 3:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
Power dissipation is 400 mW when mounted as recommended. Derate at 3.2 mW/C for TA > 25 C. Power dissipation is 800 mW when mounted as recommended. Derate at 6.4 mW/C for TA > 25 C. This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
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January, 1996 TOKO, Inc.
TK112xxA
TK11221A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 3.1 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 3.1 V 8.1 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 3.5 V, I O = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.2 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 1.8 V 180 2.02 2.10 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 2.18 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
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TK112xx A
TK11222A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 3.22 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 3.22 V 8.22 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 3.72 V, I O = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.05 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 1.92 V 180 2.14 2.22 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 2.3 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
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TK112xxA
TK11225A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 3.5 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 3.5 V 8.5 V (Note 1) IO = 5 mA 60 mA IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 4.0 V, I O = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.05 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 2.2 V 180 2.42 2.50 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 2.58 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
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TK112xx A
TK11228A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 3.8 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 3.8 V 8.8 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 4.3 V, IO = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.05 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 2.5 V 180 2.72 2.80 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 2.88 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR VO/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
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January, 1996 TOKO, Inc.
TK112xxA
TK11229A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 3.9 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 3.9 V 8.9 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 4.4 V, I O = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.05 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 2.6 V 2.82 2.90 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 2.98 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr Control Current Control Voltage Output Rise Time Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 0.3 1.8 0.6 12 30 A V V ms
Note 1:
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
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TK112xx A
TK11230A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 4.0 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 4 V 9 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 4.5 V, IO = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.05 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 2.7 V 180 2.92 3.00 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 3.08 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR VO/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
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January, 1996 TOKO, Inc.
TK112xxA
TK11231A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 4.1 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 4.1 V 9.1 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 4.6 V, I O = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.05 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 2.8 V 180 3.02 3.10 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 3.18 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr Control Current Control Voltage Output Rise Time Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 0.3 1.8 0.6 12 30 A V V ms
Note 1:
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
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TK112xx A
TK11233A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 4.3 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 4.3 V 9.3 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 4.8 V, IO = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.05 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 3 V 180 3.22 3.30 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 3.38 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr Control Current Control Voltage Output Rise Time Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 0.3 1.8 0.6 12 30 A V V ms
Note 1:
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
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January, 1996 TOKO, Inc.
TK112xxA
TK11235A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 4.5 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 4.5 V 9.5 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 5 V, IO = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.05 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 3.2 V 180 3.42 3.50 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 3.58 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr Control Current Control Voltage Output Rise Time Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 0.3 1.8 0.6 12 30 A V V ms
Note 1:
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
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TK112xx A
TK11236A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 4.6 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 3.6 V 9.6 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 5.3 V, IO = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.1 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 3.3 V 180 3.51 3.60 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 369 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
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January, 1996 TOKO, Inc.
TK112xxA
TK11238A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 4.8 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 4.8 V 9.8 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 5.3 V, IO = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.1 30 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 3.5 V 180 3.71 3.80 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 3.89 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR VO/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
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TK112xx A
TK11240A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 5.0 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 5 V 10 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 5.5 V, I O = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.1 40 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 3.7 V 180 3.90 4.00 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 4.10 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr Control Current Control Voltage Output Rise Time Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 0.3 1.8 0.6 12 30 A V V ms
Note 1:
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
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January, 1996 TOKO, Inc.
TK112xxA
TK11242A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 5.2 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 5.2 V 10.2 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 5.7 V, I O = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.1 40 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 3.9 V 4.10 4.20 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 4.30 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
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TK112xx A
TK11245A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 5.5 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 5 V 10 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 6 V, IO = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.1 40 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 4.2 V 180 4.39 4.50 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 4.61 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr Control Current Control Voltage Output Rise Time Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 0.3 1.8 0.6 12 30 A V V ms
Note 1:
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
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January, 1996 TOKO, Inc.
TK112xxA
TK11248A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 5.8 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 5.8 V 10.8 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 6.3 V, I O = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.1 40 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 4.5 V 180 4.68 4.80 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 4.92 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 17
TK112xx A
TK11249A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 5.9 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 5.9 V 10.9 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 6.4 V, IO = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.2 40 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 4.6 V 180 4.78 4.90 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 5.02 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
Page 18
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TK11250A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 6.0 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 6 V 11 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 6.5 V, I O = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.2 50 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 4.7 V 180 4.88 5.00 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 5.12 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 19
TK112xx A
TK11255A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 C, VIN = 6.5 V, CP = 0.1 F, unless otherwise specified. SYMBOL IIN ISTBY VO VDROP IO IOR Line Reg Load Reg PARAMETER Quiescent Current Standby Current Output Voltage Dropout Voltage Output Current Recommended Output Current Line Regulation Load Regulation VIN = 6.5 V 11.5 V IO = 5 mA 60 mA (Note 1) IO = 5 mA 100 mA IO = 5 mA 150 mA 100 mV(rms), IO = 10 mA VIN = 7 V, IO = 10 mA -20 C TA + 75 C 10 Hz < f < 80 kHz, IO = 30 mA 3.0 10 20 30 55 0.2 50 1.25 TEST CONDITIONS IO = 0 mA, Except ICONT VIN = 8 V, at output off IO = 30 mA IO = 60 mA IO = 150 mA VOUT = 5.2 V 180 5.36 5.5 0.16 0.29 240 150 20 50 100 160 MIN TYP 170 MAX 350 0.1 5.63 0.26 0.4 UNITS A A V V V mA mA mV mV mV mV dB mV/ C V(rms) V
RR V O/TA VNO VREF
Ripple Rejection Output Voltage Temperature Dependency Output Noise Voltage Noise Bypass Terminal Voltage
Control Terminal Specification ICONT VCONT tr
Note 1:
Control Current Control Voltage Output Rise Time
Output on, VCONT = 1.8 V Output on Output off IO = 30 mA, VCONT = 0 V 1.8 V 1.8
12
30 0.6
A V V ms
0.3
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
Page 20
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TEST CIRCUITS
SOT-23L
I IN V IN
SOT-89-5
S
+ _
A
S
S
VO
S S
VO V IN V V IO
VIN
I IN
S
+
0.1 F V IN 6 5 4 VO
+
2.2 F
IO
+
2.2 F 6 5 4
+
A 0.1 F
+ _
VIN
1 CONT CONT
S
2
3
A I CONT
NOISE BYPASS 0.1 F
NOISE BYPASS 0.1 F
1
2
3
CONT I CONT A
S
+ _
V
Transient Response
V IN Rs Cont 112XXA CP 0.1 F V OUT
V
+ _
V CONT
*Pin 5 is heat fin Contact to GND
+
+
1F
CL = .22 t o 10 F
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25 C unless otherwise specified
LOAD REGULATION 20 mV/Div V O
VO (V)
V O
ICC (mA) VO (V)
LINE REGULATION 50 mV/Div
2
SUPPLY VOLTAGE vs. INPUT CURRENT (NO LOAD)
1
3V 4V 5V 2V
0
50 IO (mA)
100
150
1
0
10 VCC (V)
20
2
0
5 VCC (V) DROPOUT VOLTAGE vs. LOAD CURRENT
10
79
QUIESCENT CURRENT vs. LOAD CURRENT 20
OUTPUT VOLTAGE vs. INPUT VOLTAGE 50 IOmV/Div = 0 mA IO = 30 mA
500 400
VDROP (mV)
TA = 25 C
IQ (mA)
VOUT
10
IO = 60 mA IO = 90 mA
300 200 100
VCC = VOUT
0
100 IO (mA)
200
4
VCC
50 mV/Div
5
0
100 IO (mA)
200
6
January, 1996 TOKO, Inc.
1-4-96
Page 21
TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 C unless otherwise specified
SHORT CURRENT vs. OUTPUT VOLTAGE 50
5V
CONTROL CURRENT vs. CONTROL VOLTAGE
TA = 25 C
QUIESCENT CURRENT vs. INPUT VOLTAGE (OFF) V O 1000 TA = 25 C
5 4 3
3V
40
4V
ICONT ( A)
RC = 100 k
2 1
20 10
RC = 0 RC = 10 k RC = 50 k RC = 100 k
2V
0
150 IO (mA)
300
80
0
-2 -3 -4 -1 VC(ON) = VCC - VCONT (V)
-5
8
IQ (pA)
VO (V)
30
RC = 0 RC = 10 k RC = 50 k
500
0
10 VCC (V)
20
9
NOISE LEVEL vs. FREQUENCY TA = 25 C -50 0
RIPPLE REJECTION vs. FREQUENCY
LINE TRANSIENT RESPONSE 50 s/Div
(VO+2)V (VO+1)V
VCC
CL = 0.22 F
NOISE (dB)
(dB)
CL = 3.3 F, CP = 0 CL = 3.3 F, CP = 0.01 F -100 Analyze r 0 500 k FREQUENCY (Hz) 1M
11
-50 VO 10 mV/Div
CP = 1000 pF
-100 100
CL = 2.2 F CP = 0.01 F
1k 10 k FREQUENCY (Hz)
100 k
12
13
LOAD TRANSIENT RESPONSE 50 s/Div
100 mA
OUTPUT VOLTAGE RESPONSE (OFF ON) 5 s/Div
NOISE LEVEL vs. BYPASS CAPACITOR 250
CL = 22 F
IO = 60 mA
VO = 5 V
IO
50 mA
SD
200
VDROP (mV)
CL = 0.68 F CL = 1.0 F
CL = 0.22 F
VO
CL = 0.22 F CL = 2.2 F
150 100
CL = 10 F VO = 5 V VO = 2 V
VO = 2 V
VO
50
50 mV/Div
CL = 2.2 F 14 CL = 1000 pF IO = 60 mA
15
1pF
10pF
100pF 1000pF 0.01 F 0.1 F CP 16
Page 22
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 C unless otherwise specified
QUIESCENT CURRENT vs. TEMPERATURE 5 4
DROPOUT VOLTAGE vs. TEMPERATURE 500 400 50 40
CONTROL CURRENT vs. TEMPERATURE
VDROP (mV)
3 2 1 0 -50
300 200 100 0 -50
ICONT ( A)
VCONT = 5 V 30 20 10 VCONT = 2.4 V
IQ (mA)
IO = 100 mA
IO = 60 mA IO = 30 mA 100 0 50 TEMPERATURE (C) 17
IO = 30 mA 0 50 TEMPERATURE (C) 100
18
0 -50 0 50 TEMPERATURE (C) 100
19
CONTROL VOLTAGE THRESHOLD vs. TEMPERATURE 2.0 RC = 0
OUTPUT CURRENT vs. TEMPERATURE 280 260
IO (mA)
OUTPUT VOLTAGE VARIATION + 10 mV/Div
VCONT (V)
240
0
2V 3V 4V
5V
1.0
220 200
0 -50 0 50 TEMPERATURE (C) 100
20
0 -50 0 50 TEMPERATURE (C) 100
21
- -50 0 50 TEMPERATURE (C) 100
81
TK11220A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4 3 2 1
-50 mV
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
VO (V)
ICC (mA)
1
0
0
150 IO (mA)
300
26
0
5 VCC (V)
1-4-96
10
25
-50
0 50 TEMPERATURE (C)
100
27
January, 1996 TOKO, Inc.
Page 23
TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11221A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
TA = 25 C unless otherwise specified
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
VO (V)
0
-50 mV
0
150 IO (mA)
300
52
0
5 VCC (V)
10
53
-50
0 50 TEMPERATURE (C)
100
54
TK11222A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
VO (V)
0
0
150 IO (mA)
300
55
0
5 VCC (V)
-50 mV
10
56
-50
0 50 TEMPERATURE (C)
100
57
TK11225A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
VOUT (V)
1
0
-50 mV
0
150 IO (mA)
300
29
0
5 VCC (V)
1-4-96
10
28
-50
0 50 TEMPERATURE (C)
100
30
Page 24
January, 1996 TOKO, Inc.
TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11228A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
TA = 25 C unless otherwise specified
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
VO (V)
0
-50 mV
0
150 IO (mA)
300
59
0
5 VCC (V)
10
58
-50
0 50 TEMPERATURE (C)
100
60
TK11229A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
VO (V) ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE 10 mV/Div
TA = 25 C
VO (V)
3 2 1
1
0
-50 mV
0
150 IO (mA)
300
61
0
5 VCC (V)
10
62
-50
0 50 TEMPERATURE (C)
100
63
TK11230A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE 10 mV/Div
TA = 25 C
VO (V)
3 2 1
VO (V)
1
0
-50 mV
0
150 IO (mA)
300
32
0
5 VCC (V)
1-4-96
10
31
-50
0 50 TEMPERATURE (C)
100
33
January, 1996 TOKO, Inc.
Page 25
TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11231A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
TA = 25 C unless otherwise specified
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
VO (V)
0
-50 mV
0
150 IO (mA)
300
35
0
5 VCC (V)
10
34
-50
0 50 TEMPERATURE (C)
100
36
TK11233A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
VO (V) ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
0
-50 mV
0
150 IO (mA)
300
64
0
5 VCC (V)
10
65
-50
0 50 TEMPERATURE (C)
100
66
TK11235A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
VO (V)
0
-50 mV
0
150 IO (mA)
300
38
0
5 VCC (V)
1-4-96
10
37
-50
0 50 TEMPERATURE (C)
100
39
Page 26
January, 1996 TOKO, Inc.
TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11236A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
TA = 25 C unless otherwise specified
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
VO (V)
0
-50 mV
0
150 IO (mA)
300
82
0
5 VCC (V)
10
83
-50
0 50 TEMPERATURE (C)
100
84
TK11238A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
VO (V)
0
-50 mV
0
150 IO (mA)
300
67
0
5 VCC (V)
10
68
-50
0 50 TEMPERATURE (C)
100
69
TK11240A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
VO (V)
1
0
-50 mV
0
150 IO (mA)
300
41
0
5 VCC (V)
1-4-96
10
40
-50
0 50 TEMPERATURE (C)
100
42
January, 1996 TOKO, Inc.
Page 27
TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11242A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
TA = 25 C unless otherwise specified
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
VO (V)
0
-50 mV
0
150 IO (mA)
300
70
0
5 VCC (V)
10
71
-50
0 50 TEMPERATURE (C)
100
72
TK11245A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
VO (V)
1
0
-50 mV
0
150 IO (mA)
300
44
0
5 VCC (V)
10
43
-50
0 50 TEMPERATURE (C)
100
45
TK11248A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
VO (V)
0
-50 mV
0
150 IO (mA)
300
73
0
5 VCC (V)
1-4-96
10
74
-50
0 50 TEMPERATURE (C)
100
75
Page 28
January, 1996 TOKO, Inc.
TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11249A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4 TA = 25 C
TA = 25 C unless otherwise specified
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
ICC (mA)
VO (V)
3 2 1
1
VO (V)
0
-50 mV 0 150 IO (mA) 300
85
0
5 VCC (V)
10
86
-50
0 50 TEMPERATURE (C)
100
87
TK11250A
OUTPUT VOLTAGE vs. LOAD CURRENT 5 4
ICC (mA)
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
TA = 25 C
VO (V)
3 2 1
1
VO (V)
0
-50 mV
0
150 IO (mA)
300
50
0
5 VCC (V)
10
49
-50
0 50 TEMPERATURE (C)
100
51
TK11255A
OUTPUT VOLTAGE vs. LOAD CURRENT TA = 25 C 5 4 3 2 1
-50 mV
INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD) 2
+50 mV
OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
1
VO (V)
ICC (mA)
VO (V)
0
0
150 IO (mA)
300
76
0
5 VCC (V)
10
77
-50
0 50 TEMPERATURE (C)
100
78
January, 1996 TOKO, Inc.
1-4-96
Page 29
TK112xx A
DEFINITION AND EXPLANATION OF TECHNICAL TERMS
LINE REGULATION (LINE REG) Line regulation is the relationship between change in output voltage due to a change in input voltage. LOAD REGULATION (LOAD REG) Load regulation is the relationship between change in output voltage due to a change in load current. DROP OUT VOLTAGE (VDROP) This is a measure of how well the regulator performs as the input voltage decreases. The smaller the number, the further the input voltage can decrease before regulation problems occur. Nominal output voltage is first measured when VIN = V OUT + 1 at a chosen load current. When the output voltage has dropped 100 mV from the nominal, VIN - VOUT is the dropout voltage. This voltage is affected by load current and junction temperature. OUTPUT NOISE VOLTAGE This is the effective AC voltage that occurs on the output voltage under the condition where the input noise is low and with a given load, filter capacitor, and frequency range. THERMAL PROTECTION This is an internal feature which turns the regulator off when the junction temperature rises above 150 C. After the regulator turns off, the temperature drops and the regulator output turns back on. Under certain conditions, the output waveform may appear to be an oscillation as the output turns off and on and back again in succession. PACKAGE POWER DISSIPATION (PD) This is the power dissipation level at which the thermal sensor is activated. The IC contains an internal thermal sensor which monitors the junction temperature. When the junction temperature exceeds the monitor threshold of 150 C, the IC is shutdown. The junction temperature rises as the difference between the input power (VIN X IIN) and the output power (VOUT X I OUT) increases. The rate of temperature rise is greatly affected by the mounting pad configuration on the PCB, the board material, and the ambient temperature. When the IC mounting has good thermal conductivity, the junction temperature will be low even if the power dissipation is great. When mounted on the recommended mounting pad, the power dissipation of Page 30
1-4-96
the SOT-23L is increased to 400 mW. For operation at ambient temperatures over 25 C, the power dissipation of the SOT-23L device should be derated at 3.2 mW/C. The power dissipation of the SOT-89-5 package is 800 mW when mounted as recommended. Derate the power dissipation at 6.4 mW/C for operation above 25 C. To determine the power dissipation for shutdown when mounted, attach the device on the actual PCB and deliberately increase the output current (or raise the input voltage) until the thermal protection circuit is activated. Calculate the power dissipation of the device by subtracting the output power from the input power. These measurements should allow for the ambient temperature of the PCB. The value obtained from PD/(150 C - TA) is the derating factor. The PCB mounting pad should provide maximum thermal conductivity in order to maintain low device temperatures. As a general rule, the lower the temperature, the better the reliability of the device. The Thermal resistance when mounted is expressed as follows: TJ = 0JA X PD + TA For Toko ICs, the internal limit for junction temperature is 150 C. If the ambient temperature, TA is 25 C, then: 150 C = 0JA X PD + 25 C 0JA X PD = 125 C 0JA = 125 C/ PD PD is the value when the thermal sensor is activated. A simple way to determine PD is to calculate VIN X IIN when the output side is shorted. Input current gradually falls as temperature rises. You should use the value when thermal equilibrium is reached. The range of currents usable can also be found from the graph below.
(mW) PD 3
Dpd
6 4 5
25
50
75 T (C)
150
Procedure: 1.) 2.) 3.) 4.) Find PD PD1 is taken to be PD X (0.8 ~ 0.9) Plot PD1 against 25 C Connect PD1 to the point corresponding to the 150 C with a straight line. January, 1996 TOKO, Inc.
TK112xxA
DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)
5.) In design, take a vertical line from the maximum operating temperature (e.g. 75 C) to the derating curve. 6.) Read off the value of PD against the point at which the vertical line intersects the derating curve. This is taken as the maximum power dissipation, DPD . The maximum operating current is: IOUT = (DPD/(VIN(MAX) - VOUT).
0 0
VIN VO
2000
Ceramic Substrate 25 X 30 mm Mounted as shown Glass Epoxy Circuit Board 10 X 10 mm
PD (mW)
1000
Unmounted 50 TA (C) 100 150
24
SOT-89-5 Power Dissipation Curve
+ +
ON/OFF GND
Copper pattern should be as large as possible. Power dissipation is 400 mW for SOT-23L and 800 mV for SOT89-5. A low ESR capacitor is recommended. For low temperature operation, select a capacitor with a low ESR at the lowest operating temperature to prevent oscillation, degradation of ripple rejection and increase in noise. The minimum recommended capacitance is 2.2 F. INPUT/OUTPUT DECOUPLING CAPACITOR CONSIDERATIONS Voltage regulators require input and output decoupling capacitors. The required value of these capacitors vary with application. Capacitors made by different manufacturers can have different characteristics, particularly with regard to high frequencies and equivalent resistance (ESR) over temperature. The type of capacitor is also important. For example, a 4.7 F aluminum electrolytic may be required for a certain application. If a tantalum capacitor is used, a lower value of 2.2 F would be adequate. It is important to consider the temperature characteristics of the decoupling capacitors. While Toko regulators are designed to operate as low as -40 C, many capacitors will not operate properly at this temperature. The capacitance of aluminum electrolytic capacitors may decrease to 0 at low temperatures. This may cause oscillation on the output of the regulator since some capacitance is required to guarantee stability. Thus, it is important to consider the characteristics of the capacitor over temperature when selection decoupling capacitors. The ESR is another important parameter. The ESR will increase with temperature but low ESR capacitors are often larger and more costly. In general, Tantalum capacitors offer lower ESR than aluminum electrolytic, but new low ESR aluminum electrolytic
SOT-23L Board Layout
500 400
PD (mW)
Mounted as shown
300 200 100 0 0 50 TA (C) 100 150
23
Unmounted
SOT-23L Power Dissipation Curve
VO VIN
+
+
ON/OFF
January, 1996 TOKO, Inc. SOT-89-5 Board Layout
1-4-96
Page 31
TK112xx A
DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)
capacitors are now available from several manufacturers. Usually a bench test is sufficient to determine the minimum capacitance required for a particular application. After taking thermal characteristics and tolerance into account, the minimum capacitance value should be approximately two times this value. The recommended minimum capacitance for the TK112xxA is 2.2 F. Please note that linear regulators with a low dropout voltage have high internal loop gains which requires care in guarding against oscillation caused by insufficient decoupling capacitance. The use of high quality decoupling capacitors suited for your application will guarantee proper operation of the circuit. NOISE BYPASS CAPACITOR SECTION The noise bypass capacitor (CP) should be connected as close as possible to pin 3 and ground. The recommended value for CP is 0.01 F. The noise bypass terminal has a high impedance and care should be taken if the noise bypass capacitor is not used. This terminal is susceptible to external noise and oscillation can occur when CP is not used and the solder pad for this pin is made too large.
Page 32
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
CONTROL FUNCTION
V IN
S
SOT-23L
SOT-89-5
V IN
S
6 SW
5
4
6
5
4
SW
R
1
2
3 CP
1
2
3
R
CP
If the control function is not used, connect the control terminal to a logic high level or VIN. This will allow the regulator to be on. The regulator will be on when the control terminal voltage is greater than 1.8 V. The seris resistor, RS, should be less than 300 k. The control current will decrease as R S, increases. The control threshold voltage will also change.
MICROPROCESSOR/LOGIC CONTROL
VIN CMOS/TTL Logic
+
VO 112XXA Cont CIN GND
+
COUT
The Input and Control current in the off mode are less than 200 pA.
PARALLEL CONNECTION FOR ON/OFF CONTROL
VIN VIN Cont VIN 11230A 0.1 F
+
VO 11250A GND VO
+ +
5V
3V
R
Cont VIN 11220A
GND VO
2V
+
0.1 F + On/Off
Cont
GND
To reduce IC power dissipation, connect a resistor, RS, in series with VIN for the lower output voltage devices. This will prevent thermal shutdown due to excessive power dissipation. January, 1996 TOKO, Inc.
1-4-96
Page 33
TK112xx A
PACKAGE OUTLINE
SOT-23L
6 5 4
0.6
1.0
Voltage Code
3.2
Marking Information
(Pin 2 and pin 5 should be grounded for heat dissipation) Product Code Voltage Code TK11220A TK11221A TK11222A TK11225A TK11228A TK11229A TK11230A TK11231A TK11233A TK11235A TK11236A TK11238A TK11240A TK11242A TK11245A TK11248A TK11249A TK11250A TK11255A P
Product Code Orientation Mark
1 2 3
0.4
e e
+0.1 -0.05
0.1
M
e
0.95
0.95
0.95
e
0.95
e1
Recommended Mount Pad 3.4
0.2
2.2
0.3
0.2
0.05
+0.1 -0.05
0.15
0.05
0.15
3.3
0.3
SOT-89-5
0.1
4.5
0.1
1.6 0.49max
5
1.5 0.49max 0.44max
4
30
0.4
.7max
1.0
.7max
0.49max
4.5
45
1.5
Voltage Code
1
2
3
2.0
20 21 22 25 28 29 30 31 33 35 36 38 40 42 45 48 49 50 55
+0.15 -0
1.25
1.2
0.2
Max
0.4
0.1
+0.5 -0.3
1.0
2.5
0.49max
e
0.54max 1.5
e' e
0.49max Product Code
1.5
1.5
0.44max
Recommended Mount Pad
1.5
3.0
Unit:mm
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
YOUR LOCAL REPRESENTATIVE IS:
TOKO America 1250 Feehanville Dr. Mt. Prospect, ILL 60056 Tel: 1(800) PIK-TOKO Fax: 1(847) 699-1194
Page 34
(c) 1994 Toko America, Inc. All Rights Reserved
1-4-96
.7
.8
.7
1.5
January, 1996 TOKO, Inc.
Printed in U.S.A.
IC-114-TK112

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