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LD1585C SERIES
5A LOW DROPOUT FAST RESPONSE POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED
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TYPICAL DROPOUT 1.2V FAST TRANSIENT RESPONSE THREE TERMINAL ADJUSTABLE OR FIXED OUTPUT VOLTAGE 1.5V 1.8V, 2.5V, 2.85V, 3.3V, 5V, 8V, 9V, 12V. GUARANTEED OUTPUT CURRENT UP TO 5A OUPUT TOLERANCE 1% AT 25C AND 2% IN FULL TEMPERATURE RANGE INTERNAL POWER AND THERMAL LIMIT WIDE OPERATING TEMPERATURE RANGE 0C TO 125C PACKAGE AVAILABLE : TO-220, D2PAK, D2PAK/A PINOUT COMPATIBILITY WITH STANDARD ADJUSTABLE VREG
TO-220
D2PAK
D2PAK/A
DESCRIPTION The LD1585C is a LOW DROP Voltage Regulator able to provide up to 5A of Output Current. Dropout is guaranteed at a maximum of 1.4V at the maximum output current, decreasing at lower loads. The device has been improved to be utilized in low voltage applications where transient response and minimum input voltage are critical. The most important feature of the device consist in lower dropout voltage and very fast transient SCHEMATIC DIAGRAM
response. A 2.85V output version is suitable for SCSI-2 active termination. Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1585C quiescent current flows into the load, so increase efficiency. Only a 10F minimum capacitor is need for stability. The device is supplied in TO-220, D2PAK and D2PAK/A. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within 1% at 25C.
October 2002
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LD1585C SERIES
ABSOLUTE MAXIMUM RATINGS
Symbol VI IO PD Tstg Top DC Input Voltage Output Current Power Dissipation Storage Temperature Range Operating Junction Temperature Range Parameter Value 30 Internally Limited Internally Limited -55 to +150 0 to +125 Unit V mA mW C C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
THERMAL DATA
Symbol Rthj-case Rthj-amb Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient TO-220 3 50 D2PAK 3 62.5 Unit C/W C/W
APPLICATION CIRCUITS
R2 VO = VREF (1 + ) R1
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LD1585C SERIES
CONNECTION DIAGRAM (top view)
TO-220
D2PAK
D 2PAK/A
ORDERING CODES
TO-220 LD1585CV15 LD1585CV18 LD1585CV25 LD1585CV28 LD1585CV33 LD1585CV50 LD1585CV80 LD1585CV90 LD1585CV12 LD1585CV D2PAK (*) LD1585CD2T15 LD1585CD2T18 LD1585CD2T25 LD1585CD2T28 LD1585CD2T33 LD1585CD2T50 LD1585CD2T80 LD1585CD2T90 LD1585CD2T120 LD1585CD2T D2PAK/A (*) LD1585CD2M15 LD1585CD2M18 LD1585CD2M25 LD1585CD2M28 LD1585CD2M33 LD1585CD2M50 LD1585CD2M80 LD1585CD2M90 LD1585CD2M120 LD1585CD2M OUTPUT VOLTAGE 1.5 V 1.8 V 2.5 V 2.85 V 3.3 V 5.0 V 8.0 V 9.0 V 12.0 V ADJ
(*) Available in Tape & Reel with the suffix "R" for fixed version and "-R" for adjustable version.
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LD1585C SERIES
ELECTRICAL CHARACTERISTICS OF LD1585#15 (VI=4.5V, C I = CO =10F, TJ = 0 to 125C, unless otherwise specified.)
Symbol VO VO VO Vd Iq Isc SVR eN S S Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 5A IO =5 A VI 25V VI - VO = 5V TJ = 25C, 30ms pulse f = 120 Hz, CO = 25 F, IO = 5A VI - VO = 3 1V TJ = 25C f =10Hz to 10KHz 60 5.5 Test Conditions TJ = 25C VI = 3 to 15V VI = 3 to 15V TJ = 25C IO = 0 to 5A VI = 3 to 25V (note 1) Min. 1.485 1.47 Typ. 1.5 1.5 0.005 0.005 0.05 0.05 1.2 5 7 0.004 75 0.003 0.5 0.03 0.02 Max. 1.515 1.53 0.2 0.2 0.3 0.5 1.4 10 Unit V V % % % % V mA A %/W dB % % %
IO = 0 to 5A TJ = 25C
TJ = 125C
1000Hrs
1
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD1585#18 (VI=4.8V, C I = CO =10F, TJ = 0 to 125C, unless otherwise specified.)
Symbol VO VO VO Vd Iq Isc SVR eN S S Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 5A IO =5 A VI 25V VI - VO = 5.5V TJ = 25C, 30ms pulse f = 120 Hz, CO = 25 F, IO = 5A VI - VO = 3 1V TJ = 25C f =10Hz to 10KHz 60 5.5 Test Conditions TJ = 25C VI = 3.3 to 15V VI = 3.3 to 15V TJ = 25C IO = 0 to 5A VI = 3.3 to 25V (note 1) Min. 1.782 1.764 Typ. 1.8 1.8 0.005 0.005 0.05 0.05 1.2 5 7 0.004 75 0.003 0.5 0.03 0.02 Max. 1.818 1.836 0.2 0.2 0.3 0.5 1.4 10 Unit V V mV mV mV V V mA A %/W dB % % %
IO = 0 to 5A TJ = 25C
TJ = 125C
1000Hrs
1
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
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LD1585C SERIES
ELECTRICAL CHARACTERISTICS OF LD1585#25 (VI=5.5V, C I = CO =10F, TJ = 0 to 125C, unless otherwise specified.)
Symbol VO VO VO Vd Iq Isc SVR eN S S Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 5A IO =5 A VI 25V VI - VO = 5.5V TJ = 25C, 30ms pulse f = 120 Hz, CO = 25 F, IO = 5A VI - VO = 3 1V TJ = 25C f =10Hz to 10KHz 60 5.5 Test Conditions TJ = 25C VI = 4 to 16V VI = 4 to 16V TJ = 25C IO = 0 to 5A VI = 4 to 25V (note 1) Min. 2.475 2.45 Typ. 2.5 2.5 0.005 0.005 0.05 0.05 1.2 5 7 0.004 75 0.003 0.5 0.03 0.02 Max. 2.525 2.55 0.2 0.2 0.3 0.5 1.4 10 Unit V V mV mV mV V V mA A %/W dB % % %
IO = 0 to 5A TJ = 25C
TJ = 125C
1000Hrs
1
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD1585#285 (VI=5.85V, CI = CO =10F, TJ = 0 to 125C, unless otherwise specified.)
Symbol VO VO VO Vd Iq Isc SVR eN S S Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 5A IO =5 A VI 25V VI - VO = 5.5V TJ = 25C, 30ms pulse f = 120 Hz, CO = 25 F, IO = 5A VI - VO = 3 1V TJ = 25C f =10Hz to 10KHz 60 5.5 Test Conditions TJ = 25C VI = 4.5 to 18V VI = 4.5 to 18V TJ = 25C IO = 0 to 5A VI = 4.5 to 30V (note 1) Min. 2.821 2.793 Typ. 2.85 2.85 0.005 0.005 0.05 0.05 1.2 5 7 0.004 75 0.003 0.5 0.03 0.02 Max. 2.879 2.907 0.2 0.2 0.3 0.5 1.4 10 Unit V V mV mV mV V V mA A %/W dB % % %
IO = 0 to 5A TJ = 25C
TJ = 125C
1000Hrs
1
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
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LD1585C SERIES
ELECTRICAL CHARACTERISTICS OF LD1585#33 (VI=6.3V, C I = CO =10F, TJ = 0 to 125C, unless otherwise specified.)
Symbol VO VO VO Vd Iq Isc SVR eN S S Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 5A IO =5 A VI 25V VI - VO = 5.5V TJ = 25C, 30ms pulse f = 120 Hz, CO = 25 F, IO = 5A VI - VO = 3 1V TJ = 25C f =10Hz to 10KHz 60 5.5 Test Conditions TJ = 25C VI = 4.8 to 18V VI = 4.9 to 18V TJ = 25C IO = 0 to 5A VI = 4.8 to 25V (note 1) Min. 3.267 3.234 Typ. 3.3 3.35 0.005 0.005 0.05 0.05 1.2 5 7 0.004 75 0.003 0.5 0.03 0.02 Max. 3.333 3.366 0.2 0.2 0.3 0.5 1.4 10 Unit V V mV mV mV V V mA A %/W dB % % %
IO = 0 to 5A TJ = 25C
TJ = 125C
1000Hrs
1
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD1585#50 (VI=8V, C I = CO =10F, TJ = 0 to 125C, unless otherwise specified.)
Symbol VO VO VO Vd Iq Isc SVR eN S S Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 5A IO =5 A VI 25V VI - VO = 5.5V TJ = 25C, 30ms pulse f = 120 Hz, CO = 25 F, IO = 5A VI - VO = 3 1V TJ = 25C f =10Hz to 10KHz 60 5.5 Test Conditions TJ = 25C VI = 6.5 to 20V VI = 6.5 to 20V TJ = 25C IO = 0 to 5A VI = 6.5 to 30V (note 1) Min. 4.95 4.9 Typ. 5 5 0.005 0.005 0.05 0.05 1.2 5 7 0.004 75 0.003 0.5 0.03 0.02 Max. 5.05 5.1 0.2 0.2 0.3 0.5 1.4 10 Unit V V mV mV mV V V mA A %/W dB % % %
IO = 0 to 5A TJ = 25C
TJ = 125C
1000Hrs
1
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
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LD1585C SERIES
ELECTRICAL CHARACTERISTICS OF LD1585#80 (VI=11V, C I = C O =10F, TJ = 0 to 125C, unless otherwise specified.)
Symbol VO VO VO Vd Iq Isc SVR eN S S Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 5A IO =5 A VI 25V VI - VO = 5.5V TJ = 25C, 30ms pulse f = 120 Hz, CO = 25 F, IO = 5A VI - VO = 3 1V TJ = 25C f =10Hz to 10KHz 60 5.5 Test Conditions TJ = 25C VI = 9.5 to 20V VI = 9.5 to 20V TJ = 25C IO = 0 to 5A VI = 9.5 to 30V (note 1) Min. 7.92 7.84 Typ. 8 8 0.005 0.005 0.05 0.05 1.2 5 7 0.004 75 0.003 0.5 0.03 0.02 Max. 8.08 8.16 0.2 0.2 0.3 0.5 1.4 10 Unit V V mV mV mV V V mA A %/W dB % % %
IO = 0 to 5A TJ = 25C
TJ = 125C
1000Hrs
1
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD1585#90 (VI=12V, C I = C O =10F, TJ = 0 to 125C, unless otherwise specified.)
Symbol VO VO VO Vd Iq Isc SVR eN S S Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 5A IO =5 A VI 25V VI - VO = 5.5V TJ = 25C, 30ms pulse f = 120 Hz, CO = 25 F, IO = 5A VI - VO = 3 1V TJ = 25C f =10Hz to 10KHz 60 5.5 Test Conditions TJ = 25C VI = 10.5 to 20V VI = 10.5 to 20V TJ = 25C IO = 0 to 5A VI = 10.5 to 30V (note 1) Min. 8.91 8.82 Typ. 9 9 0.005 0.005 0.05 0.05 1.2 5 7 0.004 75 0.003 0.5 0.03 0.02 Max. 9.09 9.18 0.2 0.2 0.3 0.5 1.4 10 Unit V V mV mV mV V V mA A %/W dB % % %
IO = 0 to 5A TJ = 25C
TJ = 125C
1000Hrs
1
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
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LD1585C SERIES
ELECTRICAL CHARACTERISTICS OF LD1585#120 (VI=15V, CI = C O =10F, TJ = 0 to 125C, unless otherwise specified.)
Symbol VO VO VO Vd Iq Isc SVR eN S S Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 5A IO =5 A VI 25V VI - VO = 5.5V TJ = 25C, 30ms pulse f = 120 Hz, CO = 25 F, IO = 5A VI - VO = 3 1V TJ = 25C f =10Hz to 10KHz 60 5.5 Test Conditions TJ = 25C VI = 13.5 to 25V VI = 13.5 to 25V TJ = 25C IO = 0 to 5A VI = 13.5 to 30V (note 1) Min. 11.88 11.76 Typ. 12 12 0.005 0.005 0.05 0.05 1.2 5 7 0.004 75 0.003 0.5 0.03 0.02 Max. 12.12 12.24 0.2 0.2 0.3 0.5 1.4 10 Unit V V mV mV mV V V mA A %/W dB % % %
IO = 0 to 5A TJ = 25C
TJ = 125C
1000Hrs
1
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD1585# (V I=4.25V, CI = CO =10F, TJ = 0 to 125C, unless otherwise specified.)
Symbol VO Parameter Output Voltage IO = 10mA Test Conditions VI - VO = 3V TJ = 25C IO = 10mA to 5AVI - VO =1.5 to 25V (note 1) IO = 10mA VI = 2.75 to 15V TJ = 25C IO = 10mA VO Vd IO(min) Isc SVR IADJ IADJ eN S S Load Regulation Dropout Voltage Minimum Load Current Short Circuit Current Termal Regulation Supply Voltage Rejection Adjust Pin Current Adjust Pin Current Change RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 to 5A IO = 5A VI = 25V VI - VO = 5.5V TJ = 25C, 30ms pulse f = 120 Hz, IO = 5A IO = 10 mA IO = 10mA to 5A TJ = 25C VI = 3 to 25V (note 1) f =10Hz to 10KHz CO = 25 F, CADJ = 25 F, VI - VO = 3 1V 60 5.5 VI = 2.75 to 15V IO = 10mA to 5ATJ = 25C Min. 1.237 1.225 Typ. 1.25 1.25 0.015 0.1 0.1 0.25 1.2 3 7 0.004 75 50 0.2 0.003 0.5 0.5 100 5 0.02 Max. 1.263 1.275 0.2 0.2 0.3 0.5 1.4 10 Unit V V % % % % V mA A %/W dB A A % % %
VO
Line Regulation
TJ = 125C
1000Hrs
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
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LD1585C SERIES
TYPICAL CHARACTERISTICS (unless otherwise specified Tj = 25C, CI=CO=10F tant) Figure 1 : Output Voltage vs Temperature Figure 4 : Line Regulation vs Temperature
Figure 2 : Short Circuit Current vs Dropout Voltage
Figure 5 : Load Regulation vs Temperature
Figure 3 : Line Regulation vs Temperature
Figure 6 : Load Regulation vs Temperature
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LD1585C SERIES
Figure 7 : Dropout Voltage vs Temperature Figure 10 : Adjust Pin Current vs Temperature
Figure 8 : Dropout Voltage vs Output Current
Figure 11 : Adjust Pin Current Change vs Temperature
Figure 9 : Adjust Pin Current vs Input Voltage
Figure 12 : Quiescent Current vs Temperature
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LD1585C SERIES
Figure 13 : Reference Voltage vs Temperature Figure 16 : Supply Voltage Rejection vs Output Current
Figure 14 : Minimum Load Current vs Temperature
Figure 17 : Supply Voltage Rejection vs Frequency
Figure 15 : Supply Voltage Rejection vs Output Current
Figure 18 : Supply Voltage Rejection vs Frequency
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LD1585C SERIES
Figure 19 : Supply Voltage Rejection vs Temperature Figure 22 : Load Transient
VI=15 V, IO=0.1 to 5 A, CI = 10F(tant), CO=10F(tant)
Figure 20 : Supply Voltage Rejection vs Temperature
Figure 23 : Load Transient
VI=7 V, IO=0.1 to 5 A, CI = 10F(tant), CO=10F(tant)
Figure 21 : Line Transient
VI=15 to 16V, IO=200mA, CI = 1F(tant), CO=10F(tant),
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LD1585C SERIES
TO-220 MECHANICAL DATA
DIM. A C D D1 E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 DIA. 13.0 2.65 15.25 6.2 3.5 3.75 0.49 0.61 1.14 1.14 4.95 2.4 10.0 16.4 14.0 2.95 15.75 6.6 3.93 3.85 0.511 0.104 0.600 0.244 0.137 0.147 mm. MIN. 4.40 1.23 2.40 1.27 0.70 0.88 1.70 1.70 5.15 2.7 10.40 0.019 0.024 0.044 0.044 0.194 0.094 0.393 0.645 0.551 0.116 0.620 0.260 0.154 0.151 TYP MAX. 4.60 1.32 2.72 MIN. 0.173 0.048 0.094 0.050 0.027 0.034 0.067 0.067 0.203 0.106 0.409 inch TYP. MAX. 0.181 0.051 0.107
P011C
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LD1585C SERIES
D2PAK MECHANICAL DATA
mm. DIM. MIN. A A1 A2 B B2 C C2 D D1 E E1 G L L2 L3 M R V2 0 4.88 15 1.27 1.4 2.4 0.4 8 0 10 8.5 5.28 15.85 1.4 1.75 3.2 0.192 0.590 0.050 0.055 0.094 0.016 8 4.4 2.49 0.03 0.7 1.14 0.45 1.23 8.95 8 10.4 0.393 0.335 0.208 0.624 0.055 0.068 0.126 TYP MAX. 4.6 2.69 0.23 0.93 1.7 0.6 1.36 9.35 MIN. 0.173 0.098 0.001 0.027 0.044 0.017 0.048 0.352 0.315 0.409 TYP. MAX. 0.181 0.106 0.009 0.036 0.067 0.023 0.053 0.368 inch
P011P6G
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LD1585C SERIES
D2PAK/A MECHANICAL DATA
mm. DIM. MIN. A A1 B B2 C C2 D E G L L2 4.40 2.49 0.7 1.14 0.45 1.21 8.95 10 4.88 15 1.27 TYP MAX. 4.60 2.69 0.93 1.7 0.60 1.36 9.35 10.4 5.28 15.85 1.4 MIN. 0.173 0.098 0.027 0.044 0.017 0.047 0.352 0.393 0.192 0.590 0.050 TYP. MAX. 0.181 0.106 0.036 0.067 0.023 0.053 0.368 0.409 0.208 0.106 0.055 inch
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LD1585C SERIES
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2002 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. (c) http://www.st.com
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