AME8802 Datasheet, PDF (1/11 Pages) Analog Microelectronics – 300mA CMOS LDO

Analog Microelectronics, Inc.
AME8802
300mA CMOS LDO
n General Description
The AME8802 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-23-5 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.
The AME8802 is stable with an output capacitance of
2.2µF or greater.
n Features
l Very Low Dropout Voltage
l Guaranteed 300mA 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 Power Good Output Function
l Power-Saving Shutdown Mode
l Space-Saving SOT-25 (SOT-23-5)
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
n Functional Block Diagram
IN
Overcurrent
Shutdown
Thermal
Shutdown
EN
V_ref x110%
PG
AMP
OUT
R1
V_ref x90%
V _ref= 1 . 2 1 5 V
**
R2
GND
** If output voltage specification is lower than 1.215V, Vref will be
trimmed to 1.2V.
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
IN
OUT
AME8802
PG
GND ^EN
C1
1 µF
OUT
C2
2 . 2 µF
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