AME, Inc.
1
AME8833/8834
High PSRR, 150mA CMOS LDO
n Typical Application
n Functional Block Diagram
l Stable with only 0.22µF output Cap
l Very Low Dropout Voltage
l Guaranteed 150mA Output
l Accurate to within 1.0%
l 50µA Quiescent Current
l Over-Temperature Shutdown
l Current Limiting
l Short Circuit Current Fold-back
l Excellent PSRR (Typ. 70dB)
l Power-Saving Shutdown Mode
l Ultra-small SC-70 and SOT-25-L Package
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
l Input Voltage Range (2V - 5.5V)
The AME8833 family of positive, linear regulators fea-
ture low quiescent current (50µA typ.) low dropout volt-
age and excellent PSRR, thus making them ideal for Tele-
communications and other battery applications. The ul-
tra-small SC-70 package is attractive for "Pocket" and
"Hand Held" applications.
AME8834’s output voltage can be adjusted with an
external resister divider.
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under the
"Worst" of operating conditions.
As an additional feature, the AME8833/8834 is stable
with an output capacitance of just extended 0.22µF or
greater.
l Cellular Phones
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
l Electronic Scales
l Cameras
l Telecommunications
n General Description
n Features
n Applications
0.22µF
OUT
IN
C2
AME8833
GND OUT
SHDN
IN
C1
1µF
OUT
IN
C2
AME8834
GND
OUTSHDN
IN
C1
R1
V
REF
R2
GND
OUT
IN
Overcurrent
Shutdown
Thermal
Shutdown
SHDN
V
ref
AMP
R1
R2
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