AME8861 Datasheet PDF - Analog Microelectronics

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AME8861
Analog Microelectronics

Part Number AME8861
Description 600mA CMOS LDO
Page 9 Pages


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AME, Inc.
AME8861
600mA CMOS LDO
n General Description
The AME8861 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.
In applications requiring a low noise, regulated supply,
place a 1000 pF capacitor between Bypass and ground.
The AME8861 is stable with an output capacitance of
2.2µF or greater.
n Features
l Very Low Dropout Voltage
l 600mA 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 Package
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
n Functional Block Diagram
IN OUT
Overcurrent
Shutdown
EN
BYP
Thermal
Shutdown
AMP
R1
Vref=1.215V
R2
GND
n Typical Application
INPUT
IN OUT
AME8861
BYP
GND
EN
C1 C2
5V
1µF 1000pF
OUTPUT
C3
2.2µF
n Applications
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
l Electronic Scales
1
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