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Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n General Description
The AME8805/8810 family of positive, linear regulators feature low quiescent current (30A typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT-89 and SOT-223 packages are attractive for "Pocket" and "Hand Held" applications. These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the "Worst" of operating conditions. The AME8805/8810 is stable with an output capacitance of 2.2F or greater.
n Features
l l l l l l l l l l
Very Low Dropout Voltage Guaranteed 600mA Output Accurate to within 1.5% 30A Quiescent Current Over-Temperature Shutdown Current Limiting Short Circuit Current Fold-back Space-Saving SOT-89 Package Factory Pre-set Output Voltages Low Temperature Coefficient
n Applications
l l
Instrumentation Portable Electronics Wireless Devices Cordless Phones PC Peripherals Battery Powered Widgets Electronic Scales
n Functional Block Diagram
IN OUT
l l l l l
Overcurrent Shutdown
Thermal Shutdown
R1
n Typical Application
IN
IN
AME8805 AME8810
GND
OUT
OUT
AMP
5V
C1 1 F
C2 2.2F
V ref =1.215V
R2 GND
1
Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Pin Configuration
SOT-89 Top View SOT-223 Top View SOT-223 Top View
AME8805
AME8805
AME8810
1
2
3
1
2
3
1
2
3
1. GND 2. VIN 3. VOUT
1. VIN 2. GND 3. VOUT
1. GND 2. VOUT 3. VIN
2
Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Ordering Information
Part Number
AME8805AEFT AME8805BEFT AME8805CEFT AME8805DEFT AME8805FEFT AME8805GEFT AME8805HEFT AME8805IEFT AME8805JEFT AME8805KEFT AME8805LEFT AME8805MEFT AME8805NEFT AME8805OEFT AME8805AEGT AME8805BEGT AME8805CEGT AME8805DEGT AME8805EEGT AME8805FEGT AME8805GEGT AME8805HEGT AME8805IEGT AME8805JEGT AME8805KEGT AME8805MEGT AME8805NEGT AME8805OEGT
Marking
A8805 AEFw w A8805 BEFw w A8805 CEFw w A8805 DEFw w A8805 FEFw w A8805 GEFw w A8805 HEFw w A8805 IEFw w A8805 JEFw w A8805 KEFw w A8805 LEFw w A8805 MEFw w A8805 NEFw w A8805 OEFw w ADByw w ADCyw w ADDyw w ADEyw w ADFyw w ADGyw w ADHyw w AEJyw w AERyw w AGTyw w AHVyw w AJJyw w AKSyw w AKTyw w
Output
3.3V 3.0V 2.8V 2.5V 3.6V 3.5V 2.7V 3.4V 2.85V 3.7V 1.5V 1.8V 2.9V 3.1V 3.3V 3.0V 2.8V 2.5V 3.8V 3.6V 3.5V 2.7V 3.4V 2.85V 3.7V 1.8V 2.9V 3.1V
Package
SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223
Temperature
-40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC
3
Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Ordering Information
Part Number
AME8810AEGT AME8810BEGT AME8810CEGT AME8810DEGT AME8810EEGT AME8810FEGT AME8810GEGT AME8810HEGT AME8810IEGT AME8810JEGT AME8810KEGT AME8810LEGT AME8810MEGT AME8810NEGT AME8810OEGT
Marking
ADIyw w ADJyw w ADKyw w ADLyw w ADMyw w ADNyw w ADOyw w AEKyw w AESyw w AGVyw w AHXyw w AJFyw w AJGyw w AKWyw w AKXyw w
Output
3.3V 3.0V 2.8V 2.5V 3.8V 3.6V 3.5V 2.7V 3.4V 2.85V 3.7V 1.5V 1.8V 2.9V 3.1V
Package
SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223
Temperature
-40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC
Please consult AME sales office or authorized Rep./Distributor for other output voltage and package type availability.
4
Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Absolute Maximum Ratings
Parameter Input Voltage Output Current Input, Output Voltage ESD Classification Maximum 8 1 GND - 0.3 to V IN + 0.3 B Unit V A V
n Recommended Operating Conditions
Parameter Supply Voltage Ambient Temperature Range Junction Temperature Rating 4.5 to 5.5 -40 to +85 -40 to +125 Unit V
o
C C
o
n Thermal Information
Parameter Thermal Resistance (ja) SOT-89 SOT-223 SOT-89 SOT-223 SOT-89 SOT-223 SOT-89 SOT-223 Maximum 180 160 18 15 550 mW 625 2750* mW 3300* 150
o o o
Unit C/W
Thermal Resistance (jc ) Internal Power Dissipation (P D ) ( T = 100 C, No Heat Sink) Internal Power Dissipation (P D ) ( T = 100oC, With Heat Sink) Maximum Junction Temperature
o
C/W
C
Maximum Lead Temperature ( 10 Sec)
300
o
C
* Using twice the jc for this calculation.
Caution: Stress above the listed absolute rating may cause permanent damage to the device
5
Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Electrical Specifications
TA = 25 o C unless otherwise noted
Parameter Input Voltage Output Voltage Accuracy Symbol VIN VO IO=600mA VO=VONOM -2.0% IO=1mA 1.4V1.2V VO>1.2V VO<0.8V IO=0mA IO=1mA to 600mA IO=5mA VIN=VO+1 to VO+2 VO < 2.0V 4.0V>VO >= 2.0V VO >= 4.0V Load Regulation Over Temerature Shutdown Over Temerature Hysterisis VO Temperature Coefficient REGLOAD OTS OTH TC f=1kHz Power Supply Rejection PSRR IO=100mA CO=2.2F f=10Hz to 100kHz IO=10mA,CBYP=0F f=10kHz f=100kHz Co=2.2F IO=1mA to 600mA -0.15 -0.1 -0.4 0.2 150 30 30 50 20 15 30 Vrms dB 0.02 600 600 800 300 30 35 0.15 0.1 0.4 1 600 50 See chart Test Condition Min Note 1 -1.5 Typ Max 7 1.5 1400 800 600 mA mA mA A A % % % %
o o
Units V %
Dropout Voltage
VDROPOUT
mV
Line Regulation
REGLINE
C C
ppm/oC
Output Voltage Noise Note1:VIN(min)=VOUT+VDROPOUT
eN
6
Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Detailed Description
The AME8805/8810 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, and thermal shutdown. The P-channel pass transistor receives data from the error amplifier, over-current shutdown, and thermal protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal shutdown circuits become active when the junction temperature exceeds 150oC, or the current exceeds 600mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120oC. The AME8805/8810 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The AME8805/8810 also incorporates current foldback to reduce power dissipation when the output is short circuited. This feature becomes active when the output drops below 0.8 volts, and reduces the current flow by 65%. Full current is restored when the voltage exceeds 0.8 volts.
n External Capacitors
The AME8805/8810 is stable with an output capacitor to ground of 2.2F or greater. Ceramic capacitors have the lowest ESR, and will offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the highest ESR, resulting in the poorest AC response. Unfortunately, large value ceramic capacitors are comparatively expensive. One option is to parallel a 0.1F ceramic capacitor with a 10F Aluminum Electrolytic. The benefit is low ESR, high capacitance, and low overall cost. A second capacitor is recommended between the input and ground to stabilize Vin. The input capacitor should be at least 0.1F to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A "Quiet" ground termination is desirable. This can be achieved with a "Star" connection.
7
Analog Microelectronics, Inc.
AME8805 / 8810
Ground Current vs. Input Voltage
45 40
600mA CMOS LDO
Load Step ( 1mA-300mA)
Vo(5mV/DIV) C L =2.2F C I N =2.2F
Ground Current (A)
Output
35 30 25
85 C
O
15 10 5 0 0 1 2 3 4 5 6 7 8
IL(200mA/DIV)
20
25 O C
IL o a d
0 TIME( 20mS/DIV) Input Voltage (V)
Drop Out Voltage vs. Output Voltage
0.3
Power Supply Rejection Ratio
0 -10
C L =2.2 F Tantalum C B Y P =0 100mA
Drop Out Voltage (V)
0.25 0.2 0.15 0.1 0.05 0 2 2.5 3 3.5
IL O A D= 6 0 0 m A
-20 PSRR (dB) -30 -40 -50 -60 -70
100mA
10mA
100 A
100 A
1mA
4
4.5
5
5.5
-80 1.0E+01
1.0E+03
1.0E+05
1.0E+07
Output Voltage (V)
Frequency (Hz)
Safe Operating Area
600
SOT-223 Heat Sink
Transient Line Response
VIN (1V/DIV)
Output Current (mA)
SOT-223 Free Air SOT-89 Heat Sink
100
10 0.1 1.0 8.0
Input Output Votage Differential (V) 8
VO (1mV/DIV)
SOT-89 Free Air
VIN DC = 5.0V CL = 2.2F
TIME (2mS/DIV)
Analog Microelectronics, Inc.
AME8805 / 8810
Noise Measurement
I OUT (200mA/DIV)
600mA CMOS LDO
Overtemperature Shutdown
Vo (1mV/ DIV)
CL = 2.2F NO FILTER
0
R L O A D =6.6
VOUT (1V/DIV)
0
TIME (20mS/DIV)
TIME (0.5Sec/DIV)
Current Limit Response
IOUT (200mA/DIV) VOUT (1V/DIV)
I OUT (200mV/DIV)
Short Circuit Response
C L O A D =2.2F C IN = 1F R L O A D < 1 0 0 m
V OUT (1V/DIV)
C L O A D =2.2F C I N =1.0F R L O A D =3.3 V O U T N O M =3.3V
TIME (2mS/DIV)
TIME (2mS/DIV)
9
Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Package Dimension
SOT-89
SY MBOLS A A1 b b1 C D D1 HE E e H S1 MILLIMETERS MIN MAX 1.40 1.60 0.89 0.36 0.52 0.41 0.56 0.35 0.44 4.40 4.60 1.35 1.83 4.25 2.29 2.60 2.90 3.10 0.35 0.70 1.40 1.60 INCHES MIN MAX 0.0551 0.0630 0.0350 0.0142 0.0205 0.0161 0.0220 0.0138 0.0173 0.1732 0.1811 0.0531 0.0720 0.1673 0.0902 0.1024 0.1142 0.1220 0.0138 0.0276 0.0551 0.0630
SOT-223
SYMBOLS A A1 B B1 C D E e e1 H L L1 L2
MILLIMETERS MIN MAX 1.50 1.80 0.02 0.10 0.60 0.838 2.895 3.15 0.24 6.299 3.30 0.381 6.706 3.708
INCHES MIN MAX 0.0591 0.0709 0.0008 0.0039 0.0236 0.033 0.1140 0.1240 0.0094 0.2480 0.1299 0.0150 0.2640 0.1460
2.30 BSC 4.60 BSC 6.70 7.30 0.91 MIN 2.00 MAX 0.06 BSC 0
0.090 BSC 0.181 BSC 0.2638 0.2874 0.0360 MIN 0.0787 MAX 0.0024 BSC
10
0
10
10
www.analogmicro.com
E-Mail: info@analogmicro.com
Life Support Policy: These products of Analog Microelectronics, Inc. are not authorized for use as critical components in lifesupport devices or systems, without the express written approval of the president of Analog Microelectronics, Inc. Analog Microelectronics, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. (c) Analog Microelectronics, Inc. , August 2001 Document: 2006-DS8805/8810-E
Corporate Headquarters
Analog Microelectronics, Inc.
3100 De La Cruz Blvd. Suite 201 Santa Clara, CA. 95054-2046 Tel : (408) 988-2388 Fax: (408) 988-2489
Asia Pacific Headquarters
AME, Inc.
2F, 187 Kang-Chien Road, Nei-Hu District Taipei 114, Taiwan, R.O.C. Tel : 886 2 2627-8687 Fax : 886 2 2659-2989

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