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Analog Microelectronics, Inc.
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AME8803/8814
300mA CMOS LDO
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Typical Application
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Functional Block Diagram
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Features
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Very Low Dropout Voltage
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Guaranteed 300mA Output
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Accurate to within 1.5%
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30
μ
A Quiescent Current
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Over-Temperature Shutdown
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Current Limiting
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Short Circuit Current Fold-back
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Noise Reduction Bypass Capacitor
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Power Good Detector
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Power-Saving Shutdown Mode
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Space-Saving SOT-26 (SOT-23-6)
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Factory Pre-set Output Voltages
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Low Temperature Coefficient
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General Description
The AME8803 family of positive, linear regulators fea-
ture low quiescent current (30
μ
A typ.) with low dropout
voltage, making them ideal for battery applications. The
space-saving SOT-23-6 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. In appli-
cations requiring a low noise, regulated supply, place a
1000pF capacitor between Bypass and ground.
The AME8803 is stable with an output capacitance of
2.2
μ
F or greater.
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Applications
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Instrumentation
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Portable Electronics
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Wireless Devices
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Cordless Phones
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PC Peripherals
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Battery Powered Widgets
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Electronic Scales
AMP
GND
OUT
IN
R1
R2
PG
Overcurrent
Shutdown
Thermal
Shutdown
EN
BYP
V
ref
=1.215V
V
ref
x90%
V
ref
x110%
AME8803
GND
OUT
IN
C3
2.2
μ
F
C1
1
μ
F
OUT
5V
PG
BYP
IN
C2
1nF
EN