AME, Inc.
AME8890
150mA CMOS LDO
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General Description
The AME8890 is a fixed 1.2V of positive, linear regula-
tor feature low quiescent current (30µA typ.) with low
dropout voltage, making them ideal for battery applica-
tions. The space-saving SOT-23-5 package is attractive
for "Pocket" and "Hand Held" applications.
This rugged device has 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.
The AME8890 is stable with an output capacitor of
2.2µF or greater.
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Functional Block Diagram
IN
Overcurrent
Shutdown
Thermal
Shutdown
OUT
EN
AMP
R1
PG
Delay
R2
GND
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Features
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Very Low Dropout Voltage
Guaranteed 150mA Output
Accurate to within 3%
30µA Quiescent Current
Over-Temperature Shutdown
Current Limiting
Short Circuit Current Fold-back
Power Good Output Function
Power-Saving Shutdown Mode
Space-Saving SOT-25 (SOT-23-5)
Low Temperature Coefficient
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Typical Application
IN
IN
PG
GND
OUT
EN
OUT
AME8890
C1
5V
1µF
C2
2.2µF
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Applications
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Instrumentation
Portable Electronics
Wireless Devices
Cordless Phones
PC Peripherals
Battery Powered Widgets
Electronic Scales
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AME [ ANALOG MICROELECTRONICS ]
