AME8802_08 Datasheet, PDF (1/16 Pages) Analog Microelectronics – 300mA CMOS LDO

AME
AME8802
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-25 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
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
l All AME's Lead Free Products Meet RoHS
Standards
n Applications
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
l Electronic Scales
Rev.K.02
300mA CMOS LDO
n Functional Block Diagram
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
EN
R1
Vref x110%
PG
AMP
Vref x90%
Vref _=1.215V
R2
GND
Note: If output voltage specification is lower than
1.215V, Vref will be trimmed to 1.2V
trimmed to 1.2V.
n Typical Application
INPUT
5V
IN
OUT
AME8802
PG GND EN
C1
1µF
OUTPUT
C2
2.2µF
1