AME, Inc.
1
AME8805 / 8810
600mA CMOS LDO
n
Typical Application
n
Functional Block Diagram
l
Very Low Dropout Voltage
l
Guaranteed 600mA Output
l
Accurate to within 1.5%
l
30
µ
A Quiescent Current
l
Over-Temperature Shutdown
l
Current Limiting
l
Short Circuit Current Fold-back
l
Space-Saving SOT-89, SOT-223
l
Factory Pre-set Output Voltages
l
Low Temperature Coefficient
The AME8805/8810 family of positive, linear regulators
feature low quiescent current (30
µ
A typ.) with low drop-
out 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 capaci-
tance of 2.2
µ
F or greater.
l
Instrumentation
l
Portable Electronics
l
Wireless Devices
l
Cordless Phones
l
PC Peripherals
l
Battery Powered Widgets
l
Electronic Scales
n
General Description
n
Features
n
Applications
Overcurrent
Shutdown
Thermal
Shutdown
AMP
GND
OUT
IN
R1
R2
V
ref
=1.215V
2.2
µ
µ
µ
µ
F
AME8805
AME8810
OUT
IN
C2
C1
1
µ
µ
µ
µ
F
IN
GND
OUT
5V
AME, Inc.
2
600mA CMOS LDO
AME8805 / 8810
n
Pin Configuration
AME8805
1. GND
2. V
IN
3. V
OUT
SOT-89
Top View
SOT-223
Top View
AME8805
1. V
IN
2. GND
3. V
OUT
SOT-223
Top View
AME8810
1. GND
2. V
OUT
3. V
IN
1
3
2
AME8805
1
3
2
AME8805
1
3
2
AME8810
AME, Inc.
3
AME8805 / 8810
600mA CMOS LDO
n
Ordering Information
AME8810 x x x
x x
Operating Temperature Range
Number of Pins
Package Type
Product Grade or Option
Special Feature
AME8805 x x x
x x
A: 3.3V
E: -40
O
C to 85
O
C
F: SOT-89
T: 3
Z: Lead Free
B: 3.0V
G: SOT-223
C: 2.8V
D: 2.5V
E: 3.8V
F: 3.6V
G: 3.5V
H: 2.7V
I: 3.4V
J: 2.85V
K: 3.7V
L: 1.5V
M: 1.8V
N: 2.9V
O: 3.1V
Y: 1.9V
1: 1.3V
2: 2.0V
Special Feature
Product
Grade
or Option
Operating
Temperature Range
Package Type
Number of
Pins
AME, Inc.
4
600mA CMOS LDO
AME8805 / 8810
n
Ordering Information
Part Number
Marking
Output Voltage
Package
Operating Temp. Range
AME8805AEFT
A8805
AEFww
3.3V
SOT-89
- 40
o
C to + 85
o
C
AME8805AEFTZ
A8805
AEFww
3.3V
SOT-89
- 40
o
C to + 85
o
C
AME8805BEFT
A8805
BEFww
3.0V
SOT-89
- 40
o
C to + 85
o
C
AME8805CEFT
A8805
CEFww
2.8V
SOT-89
- 40
o
C to + 85
o
C
AME8805DEFT
A8805
DEFww
2.5V
SOT-89
- 40
o
C to + 85
o
C
AME8805DEFTZ
A8805
DEFww
2.5V
SOT-89
- 40
o
C to + 85
o
C
AME8805EEFT
A8805
EEFww
3.8V
SOT-89
- 40
o
C to + 85
o
C
AME8805FEFT
A8805
FEFww
3.6V
SOT-89
- 40
o
C to + 85
o
C
AME8805GEFT
A8805
GEFww
3.5V
SOT-89
- 40
o
C to + 85
o
C
AME8805HEFT
A8805
HEFww
2.7V
SOT-89
- 40
o
C to + 85
o
C
AME8805IEFT
A8805
IEFww
3.4V
SOT-89
- 40
o
C to + 85
o
C
AME8805JEFT
A8805
JEFww
2.85V
SOT-89
- 40
o
C to + 85
o
C
AME8805KEFT
A8805
KEFww
3.7V
SOT-89
- 40
o
C to + 85
o
C
AME8805LEFT
A8805
LEFww
1.5V
SOT-89
- 40
o
C to + 85
o
C
AME8805MEFT
A8805
MEFww
1.8V
SOT-89
- 40
o
C to + 85
o
C
AME8805MEFTZ
A8805
MEFww
1.8V
SOT-89
- 40
o
C to + 85
o
C
AME8805NEFT
A8805
NEFww
2.9V
SOT-89
- 40
o
C to + 85
o
C
AME8805OEFT
A8805
OEFww
3.1V
SOT-89
- 40
o
C to + 85
o
C
AME8805YEFT
A8805
YEFww
1.9V
SOT-89
- 40
o
C to + 85
o
C
AME88052EFT
A8805
2EFww
2.0V
SOT-89
- 40
o
C to + 85
o
C
AME8805AEGT
ADByww
3.3V
SOT-223
- 40
o
C to + 85
o
C
AME8805AEGTZ
ADByww
3.3V
SOT-223
- 40
o
C to + 85
o
C
AME8805BEGT
ADCyww
3.0V
SOT-223
- 40
o
C to + 85
o
C
AME8805CEGT
ADDyww
2.8V
SOT-223
- 40
o
C to + 85
o
C
AME, Inc.
5
AME8805 / 8810
600mA CMOS LDO
Part Number
Marking
Output Voltage
Package
Operating Temp. Range
AME8805DEGT
ADEyww
2.5V
SOT-223
- 40
o
C to + 85
o
C
AME8805DEGTZ
ADEyww
2.5V
SOT-223
- 40
o
C to + 85
o
C
AME8805EEGT
ADFyww
3.8V
SOT-223
- 40
o
C to + 85
o
C
AME8805FEGT
ADGyww
3.6V
SOT-223
- 40
o
C to + 85
o
C
AME8805GEGT
ADHyww
3.5V
SOT-223
- 40
o
C to + 85
o
C
AME8805HEGT
AEJyww
2.7V
SOT-223
- 40
o
C to + 85
o
C
AME8805IEGT
AERyww
3.4V
SOT-223
- 40
o
C to + 85
o
C
AME8805JEGT
AGTyww
2.85V
SOT-223
- 40
o
C to + 85
o
C
AME8805KEGT
AHVyww
3.7V
SOT-223
- 40
o
C to + 85
o
C
AME8805MEGT
AJJyww
1.8V
SOT-223
- 40
o
C to + 85
o
C
AME8805NEGT
AKSyww
2.9V
SOT-223
- 40
o
C to + 85
o
C
AME8805OEGT
AKTyww
3.1V
SOT-223
- 40
o
C to + 85
o
C
AME88051EGT
AWLww
1.3V
SOT-223
- 40
o
C to + 85
o
C
AME8810AEGT
ADIyww
3.3V
SOT-223
- 40
o
C to + 85
o
C
AME8810AEGTZ
ADIyww
3.3V
SOT-223
- 40
o
C to + 85
o
C
AME8810BEGT
ADJyww
3.0V
SOT-223
- 40
o
C to + 85
o
C
AME8810BEGTZ
ADJyww
3.0V
SOT-223
- 40
o
C to + 85
o
C
AME8810CEGT
ADKyww
2.8V
SOT-223
- 40
o
C to + 85
o
C
AME8810DEGT
ADLyww
2.5V
SOT-223
- 40
o
C to + 85
o
C
AME8810EEGT
ADMyww
3.8V
SOT-223
- 40
o
C to + 85
o
C
AME8810FEGT
ADNyww
3.6V
SOT-223
- 40
o
C to + 85
o
C
AME8810GEGT
ADOyww
3.5V
SOT-223
- 40
o
C to + 85
o
C
AME8810HEGT
AEKyww
2.7V
SOT-223
- 40
o
C to + 85
o
C
AME8810IEGT
AESyww
3.4V
SOT-223
- 40
o
C to + 85
o
C
AME8810JEGT
AGVyww
2.85V
SOT-223
- 40
o
C to + 85
o
C
AME8810KEGT
AHXyww
3.7V
SOT-223
- 40
o
C to + 85
o
C
AME8810LEGT
AJFyww
1.5V
SOT-223
- 40
o
C to + 85
o
C
AME8810MEGT
AJGyww
1.8V
SOT-223
- 40
o
C to + 85
o
C
AME8810NEGT
AKWyww
2.9V
SOT-223
- 40
o
C to + 85
o
C
AME8810OEGT
AKXyww
3.1V
SOT-223
- 40
o
C to + 85
o
C
n
Ordering Information (contd.)
Please consult AME sales office or authorized Rep./Distributor for other output voltage and package type availability.
AME, Inc.
6
600mA CMOS LDO
AME8805 / 8810
Parameter
Maximum
Unit
Input Voltage
8
V
Output Current
1
A
Input, Output Voltage
GND - 0.3 to V
IN
+ 0.3
V
ESD Classification
B
Maximum
Unit
SOT-89
180
SOT-223
160
SOT-89
18
SOT-223
15
SOT-89
550
SOT-223
625
SOT-89
2750*
SOT-223
3300*
150
o
C
300
o
C
Maximum Lead Temperature (10 Sec)
Maximum Junction Temperature
Parameter
Thermal Resistance (
ja
)
Thermal Resistance (
jc
)
Internal Power Dissipation (P
D
)
(
T = 100
o
C, No Heat Sink)
Internal Power Dissipation (P
D
)
(
T = 100
o
C, With Heat Sink)
o
C / W
o
C / W
mW
mW
n
Absolute Maximum Ratings
n
Recommended Operating Conditions
n
Thermal Information
* Using twice the
jc for this calculation.
Parameter
Rating
Unit
Supply Voltage
4.5 to 5.5
V
Ambient Temperature Range
- 40 to + 85
o
C
Junction Temperature
- 40 to + 125
o
C
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
AME, Inc.
7
AME8805 / 8810
600mA CMOS LDO
Parameter
Symbol
Min
Typ Max
Units
Input Voltage
V
IN
Note 1
7
V
Output Voltage Accuracy
V
O
-1.5
1.5
%
1.3V<=V
O(NOM)
<=1.4V
1900
1.4V<V
O(NOM)
<=2.0V
1400
2.0V<V
O(NOM)
<=2.8V
800
2.8V<V
O(NOM)
600
Output Current
I
O
600
mA
Current Limit
I
LIM
600
800
mA
Short Circuit Current
I
SC
300
600
mA
Quiescent Current
I
Q
30
50
µ
A
Ground Pin Current
I
GND
35
µ
A
1.3V <= V
O
<= 1.4V
-0.2
0.2
1.4V < V
O
<= 2.0V
-0.15
0.15
2.0V < V
O
< 4.0V
-0.1
0.02
0.1
V
O
>= 4.0V
-0.4
0.2
0.4
Load Regulation
REG
LOAD
0.2
1
%
Over Temperature Shutdown
OTS
150
o
C
Over Temperature Hysterisis
OTH
30
o
C
V
O
Temperature Coefficient
TC
30
ppm/
o
C
f=1kHz
50
f=10kHz
20
f=100kHz
15
See
chart
mV
Line Regulation
REG
LINE
I
O
=1mA
V
IN
=V
O
+1 to V
O
+2
%
I
O
=1mA to 600mA
V
O
>1.2V
V
O
>1.2V
V
O
<0.8V
dB
PSRR
30
µ
Vrms
I
O
=0mA
Test Condition
I
O
=1mA
Dropout Voltage
V
DROPOUT
I
O
=600mA
V
O
=V
O(NOM)
-2.0%
I
O
=1mA to 600mA
Power Supply Rejection
Output Voltage Noise
eN
I
O
=100mA
C
O
=2.2
µ
F
f=10Hz to 100kHz
I
O
=10mA,C
BY P
=0
µ
F
Co=2.2
µ
F
n
Electrical Specifications
TA = 25
O
C unless otherwise noted
Note1: V
IN(MIN)
=V
OUT
+V
DROPOUT
Note2: To prevent the Short Circuit Current protection feature from being prematurely activated, the input voltage must be
applied before a current source load is applied.
AME, Inc.
8
600mA CMOS LDO
AME8805 / 8810
The AME8805/8810 family of CMOS regulators con-
tain a PMOS pass transistor, voltage reference, error am-
plifier, over-current protection, and thermal shutdown.
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
150
o
C, or the current exceeds 600mA. During thermal
shutdown, the output voltage remains low. Normal op-
eration is restored when the junction temperature drops
below 120
o
C.
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 dissipa-
tion when the output is short circuited. This feature be-
comes 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
Detailed Description
n
External Capacitors
The AME8805/8810 is stable with an output capacitor
to ground of 2.2
µ
F 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 0.1
µ
F ce-
ramic capacitor with a 10
µ
F Aluminum Electrolytic. The
benefit is low ESR, high capacitance, and low overall
cost.
A second capacitor is recommended between the in-
put and ground to stabilize Vin. The input capacitor should
be at least 0.1
µ
F 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.
AME, Inc.
9
AME8805 / 8810
600mA CMOS LDO
TIM E ( 20m S /D IV )
C
L
= 2.2
µ
F
C
IN
= 2.2
µ
F
O utput
I
L o a d
0
I
L
(200mA/
DI
V
)
V
O
(
5
mV/
D
IV)
Ground Current vs. Input Voltage
Load Step (1mA-600mA)
Drop Out Voltage vs. Output Voltage
Power Supply Rejection Ratio
Line Transient Response
Safe Operating Area
Ou
tp
u
t
Cu
rren
t
(m
A)
Input O utput Votage Differential (V )
1 0
1 0 0
6 0 0
S O T -89
F ree A ir
S O T -223
F ree A ir
S O T -89
H eat S ink
S O T -223
H eat S ink
0 .1
1 .0
8 .0
TIM E (2m S /DIV )
V
O
(
1
mV
/D
IV)
V
IN
(
1
V/
D
I
V)
V
IN D C
= 5.0V
C
L
= 2.2
µ
F
P
S
R
R (d
B)
100m A
10m A
1m A
100
µ
A
100m A
100
µ
A
C
L
= 2.2
µ
F T antalum
C
B Y P
= 0
-8 0
-7 0
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
1 0
1 K
1 0 0 K
Frequency (Hz)
1 0 M
Ground
C
u
rrent
(
µ
µ
µ
µ
A)
Input V oltage (V )
0
5
1 0
1 5
2 0
2 5
3 0
3 5
4 0
4 5
0
1
2
3
4
5
6
7
8
85
O
C
25
O
C
0
200
400
600
800
1000
1200
1
2
3
4
5
6
I
LOAD
=600mA
D
r
o
p
O
u
t
Vo
l
t
ag
e (
m
V
)
Output Voltage (V)
AME, Inc.
10
600mA CMOS LDO
AME8805 / 8810
Short Circuit Response
Overtemperature Shutdown
Current Limit Response
Noise Measurement
TIM E (20m s/DIV )
Vo (
1
mV D
I
V
)
C
L
= 2.2
µ
F
N o Filter
V
OU
T
(
1
V
/
D
I
V
)
I
OU
T
(200
m
A
/D
IV
)
TIM E (0.5S ec/DIV )
0
0
R
L O A D
= 6.6
I
OU
T
(200m
A/
DI
V
)
V
OU
T
(
1
V/D
I
V)
TIM E (2m S /DIV )
C
L O A D
= 2.2
µ
F
C
IN
= 1.0
µ
F
R
L O A D
= 3.3
V
O U T N O M
= 3.3V
TIM E (2m S /DIV)
C
L O A D
= 2.2
µ
F
C
IN
= 1
µ
F
R
L O A D
< 100m
V
OU
T
(
1
V/D
I
V)
I
OU
T
(200m
V
/
DI
V
)
AME, Inc.
11
AME8805 / 8810
600mA CMOS LDO
n
Package Dimension
SOT-223
SOT-89
MIN
MAX
MIN
MAX
A
1.39
1.60
0.05472 0.06299
A
1
C
0.35
0.44
0.01378 0.01732
D
4.39
4.60
0.17283
0.1811
D
1
1.35
1.83
0.05315 0.07205
E
2.28
3.60
0.08976 0.14173
e
H
S1
0.8REF
0.0315REF
SYMBOLS
MILLIMETERS
INCHES
3.00REF
0.70REF
1.50REF
0.1181REF
0.0276REF
0.0590REF
A
H
A1
Top View
Side View
Front View
D
D1
E
e
C
POLISH
POLISH
MATTE FINISH
S1
C
13
o
(4X)
Top View
Side View
£
c
D
B1
H
E
e
A1
B
13
o
(4X)
Front View
F
MIN
MAX
MIN
MAX
A
1
0.02
0.10
0.0008
0.0039
B
0.60
0.84
0.0236
0.0330
B
1
2.90
3.15
0.1140
0.1240
C
0.24
0.38
0.0094
0.0150
D
6.30
6.71
0.2480
0.2640
E
3.30
3.71
0.1299
0.1460
e
F
1.40
1.80
0.0560
0.0702
H
6.70
7.30
0.2638
0.2874
è
0
o
10
o
0
o
10
o
2.30 BSC
0.0906 BSC
MILLIMETERS
INCHES
SYMBOLS
Life Support Policy:
These products of AME, Inc. are not authorized for use as critical components in life-support
devices or systems, without the express written approval of the president
of AME, Inc.
AME, 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.
©
AME, Inc. , December 2003
Document: 2006-DS8805/8810-K
Corporate Headquarter U.S.A. (Subsidiary)
AME, Inc. Analog Microelectronics, Inc.
2F, 189 Kang-Chien Road, Nei-Hu District 3100 De La Cruz Blvd., Suite 201
Taipei 114, Taiwan, R.O.C. Santa Clara, CA. 95054-2046
Tel : 886 2 2627-8687 Tel: (408) 988-2388
Fax: 886 2 2659-2989
Fax: (408) 988-2489
www.ame.com.tw
E-Mail: sales@ame.com.tw
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