AME8801_08 Datasheet, PDF (1/24 Pages) Analog Microelectronics – 300mA CMOS LDO

AME
AME8801 / 8812 / 8840
n General Description
The AME8801/8812/8840 family of positive, linear regu-
lators feature low quiescent current (30µA typ.) with low
dropout voltage, making them ideal for battery applica-
tions. The space-saving SOT-25/TSOT-25 & SOT-26/TSOT-
26 packages are 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" 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/TSOT-25, SOT-26/
TSOT-26 Packages
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
l All AME's Lead Free Product Meet RoHS
Standards
n Applications
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
300mA CMOS LDO
n Functional Block Diagram
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
EN
BYP
R1
AMP
V_ref=1.215V
R2
GND
n Typical Application
INPUT
IN AME8801 OUT
AME8812
AME8840
BYP
GND
EN
C1 C2
1µF 1000pF
OUTPUT
C3
2.2µF
Rev.S.02
1