AME8810 (Analog Microelectronics)
600mA CMOS LDO

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Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n General Description
The AME8805/8810 family of positive, linear regula-
tors feature low quiescent current (30µA typ.) with low
dropout voltage, making them ideal for battery applica-
tions. The space-saving SOT-89 and SOT-223 pack-
ages are attractive for "Pocket" and "Hand Held" appli-
cations.
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 2.2µF or greater.
n Features
l Very Low Dropout Voltage
l Guaranteed 600mA Output
l Accurate to within 1.5%
l 30µA Quiescent Current
l Over-Temperature Shutdown
l Current Limiting
l Short Circuit Current Fold-back
l Space-Saving SOT-89 Package
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
n Functional Block Diagram
IN
Overcurrent
Shutdown
Thermal
Shutdown
OUT
R1
AMP
n Applications
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
l Electronic Scales
n Typical Application
IN
5V
AME8805
IN AME8810 OUT
GND
C1
1 µF
Vref=1.215V
R2
GND
OUT
C2
2 . 2 µF
1


AME8810 (Analog Microelectronics)
600mA CMOS LDO

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Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Pin Configuration
SOT-89 Top View
SOT-223 Top View
SOT-223 Top View
AME8805
123
1. GND
2. VIN
3. VOUT
AME8805
12
1. VIN
2. GND
3. VOUT
3
AME8810
12
1. GND
2. VOUT
3. VIN
3
2


AME8810 (Analog Microelectronics)
600mA CMOS LDO

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Analog Microelectronics, Inc.
AME8805 / 8810
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 Package
3.3V
SOT-89
3.0V
SOT-89
2.8V
2.5V
SOT-89
SOT-89
3.6V
SOT-89
3.5V
SOT-89
2.7V
SOT-89
3.4V
SOT-89
2.85V SOT-89
3.7V
SOT-89
1.5V
SOT-89
1.8V
SOT-89
2.9V
SOT-89
3.1V
3.3V
3.0V
SOT-89
SOT-223
SOT-223
2.8V SOT-223
2.5V SOT-223
3.8V SOT-223
3.6V SOT-223
3.5V SOT-223
2.7V SOT-223
3.4V SOT-223
2.85V
3.7V
SOT-223
SOT-223
1.8V SOT-223
2.9V SOT-223
3.1V 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
600mA CMOS LDO
3


AME8810 (Analog Microelectronics)
600mA CMOS LDO

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Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Ordering Information
Part Number
Marking Output Package Temperature
AME8810AEGT
ADIyw w
3.3V SOT-223 -40OC to +85OC
AME8810BEGT
ADJyw w
3.0V SOT-223 -40OC to +85OC
AME8810CEGT
ADKyw w
2.8V SOT-223 -40OC to +85OC
AME8810DEGT
ADLyw w
2.5V SOT-223 -40OC to +85OC
AME8810EEGT
ADMyw w
3.8V SOT-223 -40OC to +85OC
AME8810FEGT
ADNyw w
3.6V SOT-223 -40OC to +85OC
AME8810GEGT
ADOyw w
3.5V SOT-223 -40OC to +85OC
AME8810HEGT
AEKyw w
2.7V SOT-223 -40OC to +85OC
AME8810IEGT
AESyw w
3.4V SOT-223 -40OC to +85OC
AME8810JEGT
AGVyw w
2.85V SOT-223 -40OC to +85OC
AME8810KEGT
AHXyw w
3.7V SOT-223 -40OC to +85OC
AME8810LEGT
AJFyw w
1.5V SOT-223 -40OC to +85OC
AME8810MEGT
AJGyw w
1.8V SOT-223 -40OC to +85OC
AME8810NEGT
AKWyw w
2.9V SOT-223 -40OC to +85OC
AME8810OEGT
AKXyw w
3.1V SOT-223 -40OC to +85OC
Please consult AME sales office or authorized Rep./Distributor for other output voltage
and package type availability.
4


AME8810 (Analog Microelectronics)
600mA CMOS LDO

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Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Absolute Maximum Ratings
P a ra m e te r
Maximum
Input Voltage
8
Output Current
1
Input, Output Voltage
GND - 0.3 to VIN + 0.3
ESD Classification
n Recommended Operating Conditions
B
P a ra m e te r
Supply Voltage
Ra ting
4.5 to 5.5
Ambient Temperature Range
-40 to +85
Junction Temperature
-40 to +125
n Thermal Information
P a ra m e te r
Thermal Resistance (θja)
Thermal Resistance (θjc)
Internal Power Dissipation (PD)
(T = 100oC, No Heat Sink)
Internal Power Dissipation (PD)
(T = 100oC, With Heat Sink)
SOT-89
SOT-223
SOT-89
SOT-223
SOT-89
SOT-223
SOT-89
SOT-223
Maximum
180
160
18
15
550
625
2750*
3300*
Maximum Junction Temperature
150
Maximum Lead Temperature ( 10 Sec)
300
Unit
V
A
V
Unit
V
oC
oC
Unit
oC / W
oC / W
mW
mW
oC
oC
* Using twice the θjc for this calculation.
Caution: Stress above the listed absolute rating may cause permanent damage to the device
5


AME8810 (Analog Microelectronics)
600mA CMOS LDO

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Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Electrical Specifications
TA = 25oC unless otherwise noted
Parameter
Symbol
Test Condition
Min Typ Max
Input Voltage
Output Voltage Accuracy
Dropout Voltage
Output Current
Current Limit
Short Circuit Current
Quiescent Current
Ground Pin Current
Line Regulation
Load Regulation
Over Temerature Shutdown
VIN
VO
VDROPOUT
IO
ILIM
ISC
IQ
IGND
REGLINE
REGLOAD
OTS
Note 1
IO=1mA
-1.5
IO=600mA
VO=VONOM -2.0%
1.4V<VO(NOM)<=2.0V
2.0V<VO(NOM)<=2.8V
2.8V<VO(NOM)
See
chart
VO>1.2V
600
VO>1.2V
600 800
VO<0.8V
300
IO=0mA
30
IO=1mA to 600mA
35
IO=5mA
VIN=VO+1 to VO+2
VO < 2.0V
4.0V>VO >= 2.0V
VO >= 4.0V
-0.15
-0.1 0.02
-0.4
IO=1mA to 600mA
0.2
150
7
1.5
1400
800
600
600
50
0.15
0.1
0.4
1
Over Temerature Hysterisis OTH
30
VO Temperature Coefficient
TC
Power Supply Rejection
PSRR
IO=100mA
CO=2.2µF
f=1kHz
f=10kHz
f=100kHz
30
50
20
15
Output Voltage Noise
f=10Hz to 100kHz
eN IO=10mA,CBYP=0µF
Co=2.2µF
30
Note1:VIN(min)=VOUT+VDROPOUT
Units
V
%
mV
mA
mA
mA
µA
µA
%
%
%
%
oC
oC
ppm/oC
dB
µVrms
6


AME8810 (Analog Microelectronics)
600mA CMOS LDO

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Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Detailed Description
The AME8805/8810 family of CMOS regulators con-
tain a PMOS pass transistor, voltage reference, error
amplifier, over-current protection, and thermal shut-
down.
The P-channel pass transistor receives data from the
error amplifier, over-current shutdown, and thermal pro-
tection circuits. During normal operation, the error am-
plifier compares the output voltage to a precision refer-
ence. Over-current and Thermal shutdown circuits be-
come active when the junction temperature exceeds
150oC, or the current exceeds 600mA. During thermal
shutdown, the output voltage remains low. Normal op-
eration is restored when the junction temperature drops
below 120oC.
The AME8805/8810 switches from voltage mode to cur-
rent mode when the load exceeds the rated output cur-
rent. This prevents over-stress. The AME8805/8810
also incorporates current foldback to reduce power dis-
sipation 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 2.2µF 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. Un-
fortunately, large value ceramic capacitors are compara-
tively expensive. One option is to parallel a 0.1µF ce-
ramic capacitor with a 10µF 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 0.1µF 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


AME8810 (Analog Microelectronics)
600mA CMOS LDO

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Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
Ground Current vs. Input Voltage
45
40
35 85O C
30
25
20 25O C
15
10
5
0
0 1 2 3 45 6 7 8
Input Voltage (V)
Load Step ( 1mA-300mA)
Output
C L=2.2µF
C IN=2.2µF
ILoad
TIME( 20mS/DIV)
0
Drop Out Voltage vs. Output Voltage
0.3
0.25
0.2
ILOAD=600mA
0.15
0.1
0.05
0
2 2.5 3 3.5 4 4.5 5 5.5
Output Voltage (V)
600
100
Safe Operating Area
SOT-223
Free Air
SOT-223
Heat Sink
SOT-89
Heat Sink
SOT-89
Free Air
Power Supply Rejection Ratio
0
-10
-20
C L=2.2 µF Tantalum
CBYP=0
-30
-40
100mA
-50 100mA
-60
-70
-80
1.0E+01
100 µA
100 µA
1.0E+03
1.0E+05
10mA
1mA
1.0E+07
Frequency (Hz)
Transient Line Response
VIN DC = 5.0V
CL = 2.2µF
10
0.1 1.0
8.0
Input Output Votage Differential (V)
8
TIME (2mS/DIV)


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600mA CMOS LDO

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Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
Noise Measurement
Overtemperature Shutdown
CL = 2.2µF
NO FILTER
RLOAD=6.6
0
TIME (20mS/DIV)
Current Limit Response
C L O A D =2.2µF
C IN=1.0µF
RLOAD=3.3
VOUTNOM=3.3V
TIME (2mS/DIV)
TIME (0.5Sec/DIV)
Short Circuit Response
C LOAD= 2 . 2µF
C IN= 1µF
RLOAD<100m
0
TIME (2mS/DIV)
9


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600mA CMOS LDO

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Analog Microelectronics, Inc.
AME8805 / 8810
600mA CMOS LDO
n Package Dimension
SOT-89
SYMBOLS
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
0.0138
0.0220
0.0173
0.1732
0.0531
0.1811
0.0720
- 0.1673
0.0902 0.1024
0.1142 0.1220
0.0138 0.0276
0.0551 0.0630
SOT-223
α
SYMBOLS
A
A1
B
B1
C
D
E
e
e1
H
L
L1
L2
α
MILLIMETERS
MIN
MAX
1.50 1.80
0.02 0.10
0.60 0.838
2.895
3.15
0.24 0.381
6.299
6.706
3.30 3.708
2.30 BSC
4.60 BSC
6.70 7.30
0.91 MIN
2.00 MAX
0.06 BSC
°°
0 10
INCHES
MIN
MAX
0.0591
0.0709
0.0008
0.0039
0.0236
0.033
0.1140
0.1240
0.0094
0.0150
0.2480
0.2640
0.1299
0.1460
0.090 BSC
0.181 BSC
0.2638
0.2874
0.0360 MIN
0.0787 MAX
0.0024 BSC
°°
0 10
10


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600mA CMOS LDO

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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 life-
support 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.
© 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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