Analog Microelectronics, Inc.
AME8803/8814
300mA CMOS LDO
n
General Description
The AME8803 family of positive, linear regulators fea-
ture low quiescent current (30µA typ.) with low dropout
voltage, making them ideal for battery applications. The
space-saving SOT-23-6 package is 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.
An additional feature is a "Power Good" detector, which
pulls low when the output is out of regulation. In appli-
cations requiring a low noise, regulated supply, place a
1000pF capacitor between Bypass and ground.
The AME8803 is stable with an output capacitance of
2.2µF or greater.
n
Features
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Very Low Dropout Voltage
Guaranteed 300mA Output
Accurate to within 1.5%
30µA Quiescent Current
Over-Temperature Shutdown
Current Limiting
Short Circuit Current Fold-back
Noise Reduction Bypass Capacitor
Power Good Detector
Power-Saving Shutdown Mode
Space-Saving SOT-26 (SOT-23-6)
Factory Pre-set Output Voltages
Low Temperature Coefficient
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Applications
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Functional Block Diagram
IN
Overcurrent
Shutdown
l
l
l
OUT
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Instrumentation
Portable Electronics
Wireless Devices
Cordless Phones
PC Peripherals
Battery Powered Widgets
Electronic Scales
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Typical Application
IN
EN
IN
BYP
GND
PG
OUT
Thermal
Shutdown
EN
BYP
PG
V
ref
AME8803
OUT
R1
x110%
AMP
C1
5V
1µF
C2
1nF
C3
2.2µF
V
ref
x90%
R2
V
ref
=1.215V
GND
1
Analog Microelectronics, Inc.
AME8803/8814
300mA CMOS LDO
n
Ordering Information
Part Number
AME8814AEEY
AME8814BEEY
AME8814CEEY
AME8814DEEY
AME8814EEEY
AME8814FEEY
AME8814GEEY
AME8814HEEY
AME8814IEEY
AME8814JEEY
AME8814KEEY
AME8814LEEY
AME8814MEEY
AME8814NEEY
AME8814OEEY
Marking
AIEww
AIFww
AIGww
AIHww
AIIww
AIJww
AIKww
AILww
AIMww
AINww
AIOww
AJDww
AJEww
AKYww
AKZww
Output Package Operating Temp.
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
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
SOT-26
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
-40
O
C to +85
O
C
Please consult AME sales office or authorized Rep./Distributor for other output voltage and package type availability.
3
Analog Microelectronics, Inc.
AME8803/8814
300mA CMOS LDO
n
Absolute M aximum Ratings:
Parameter
Input Voltage
Output Current
Output Voltage
ESD Classification
Maximum
8
P
D
/ (V
IN
- V
O
)
GND - 0.3 to V
IN
+ 0.3
B
Unit
V
mA
V
n
Recommended operating Conditions:
Parameter
Ambient Temperature Range
Junction Temperature
Rating
-40 to +85
-40 to +125
Unit
o
C
C
o
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T hermal Information
Parameter
Thermal Resistance (
θ
ja
)
Thermal Resistance (
θ
ja
)
Internal Power Dissipation (P
D
)
(
∆
T = 100 C)
Internal Power Dissipation (P
D
)
(
∆
T = 100
o
C)
Maximum Junction Temperature
Maximum Lead Temperature ( 10 Sec)
o
Package
SOT-26
Maximum
260
o
Unit
C/W
SOT-26W
260
SOT-26
380
mW
SOT-26W
380
150
o
C
300
4
Caution: Stress above the listed absolute rating may cause permanent damage to the device
Analog Microelectronics, Inc.
AME8803/8814
300mA CMOS LDO
n
Electrical Specifications
TA = 25
o
C unless otherwise noted
Parameter
Input Voltage
Output Voltage Accuracy
Symbol
V
IN
V
O
I
O
=300mA
V
O
=V
ONOM
-2.0%
I
O
=1mA
1.2V<V
O(NOM)
<=2.0V
2.0V<V
O(NOM)
<=2.8V
2.8V<V
O(NOM)
Output Current
Current Limit
Short Circuit Current
Quiescent Current
Ground Pin Current
I
O
I
LIM
I
SC
I
Q
I
GND
V
O
>1.2V
V
O
>1.2V
V
O
<0.8V
I
O
=0mA
I
O
=1mA to 300mA
I
O
=1mA
V
IN
=V
O
+1 to V
O
+2
V
O
< 2.0V
2.0V<=V
O
< 4.0V
4.0V <= Vo
Load Regulation
Over Temerature Shutdown
Over Temerature Hysterisis
V
O
Temperature Coefficient
REG
LOAD
OTS
OTH
TC
f=1kHz
Power Supply Rejection
PSRR
I
O
=100mA
C
O
=2.2
µ
F
f=10Hz to 100kHz
I
O
=10mA
f=10kHz
f=100kHz
Co=2.2
µ
F
2.0
0
I
O
=1mA to 300mA
-0.15
-0.1
-0.4
-1
0.02
0.2
0.2
150
30
30
50
20
15
30
Vin
0.4
0.1
0.5
0.5
0
1
0.4
85
75
115
125
1
7
0.4
%V
O(NOM)
µ
Vrms
V
V
µ
A
µ
A
µ
A
V
dB
300
300
450
150
30
35
0.15
0.1
0.4
1
300
50
See
chart
Test Condition
Min
Note 1
-1.5
Typ
Max
7
1.5
1300
400
300
mA
mA
mA
µ
A
µ
A
%
%
%
%
o
o
Units
V
%
Dropout Voltage
V
DROPOUT
mV
Line Regulation
REG
LINE
C
C
ppm/
o
C
Output Voltage Noise
eN
V
EH
V
EL
I
EH
I
EL
EN Input Threshold
V
IN
=2.7V to 7V
V
IN
=2.7V to 7V
V
EN
=V
IN
, V
IN
=2.7V to 7V
V
EN
=0V, V
IN
=2.7V to 7V
V
IN
=5V, V
O
=0V, V
EN
<V
EL
I
O
=0.4mA, V
EN
<V
EL
2.5V <=Vo <= 5.0V
EN Input Bias Current
Shutdown Supply Current
Shutdown Output Voltage
Output Under Voltage
I
SD
V
O,SD
V
UV
1.2V <= Vo < 2.5V
2.5V <=Vo <= 5.0V
1.2V <= Vo < 2.5V
V
PG
=7V
V
O
in regulation
I
SINK
=0.4mA
Output Over Voltage
PG Leakage Current
PG Voltage Rating
PG Voltage Low
Note1:V
IN(min)
=V
OUT
+V
DROPOUT
V
OV
I
LC
V
PG
V
OL
%V
O(NOM)
µ
A
V
V
5
传感器
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