AME8801 Datasheet, PDF (1/14 Pages) Analog Microelectronics – 300mA CMOS LDO

Analog Microelectronics, Inc.
AME8801/8812/8840
300mA CMOS LDO
n General Description
The AME8801/8840 family of positive, linear regulators
feature low quiescent current (30µA typ.) with low drop-
out 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.
In applications requiring a low noise, regulated supply,
place a 1000 pF capacitor between Bypass and Ground.
The AME8801 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 Noise Reduction Bypass Capacitor
l Power-Saving Shutdown Mode
l Space-Saving SOT-25 (SOT-23-5) Package
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
n Functional Block Diagram
IN
EN
BYP
Overcurrent
Shutdown
Thermal
Shutdown
AMP
OUT
R1
V _ref=1.215V
R2
GND
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
INPUT
5V
IN
OUT
AME8801
BYP
GND
EN
C1 C2
1 µF 1 n F
OUTPUT
C3
2 . 2 µF
1