AME
AME8818
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General Description
The AME8818 is a CMOS linear regulator. It operated from
2.5V to 5.5V input voltage and delivers up to 300mA output
current. The AME8818 provide low quiescent current (70µA
typ) low dropout voltage (230mV @ 300mA typ), and excel-
lent PSRR, thus marking them ideal for Data-Communica-
tions and battery applications.
The AME8818 provide over temperature and over current
protected functions. It is stable with an output capacitance of
1µF or larger.
Low Dropout
300mA CMOS Regulator
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Functional Block Diagram
(Fixed Version)
IN
OUT
Overcurrent
Shutdown
A
Thermal
Shutdown
EN
R1
BYP/NC
Bandgap
Reference
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Features
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Input voltage range is from 2.5V to 5.5V
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Output Voltage Range:
Fixed Version is from 1.2V to 4.5V
ADJ Version is from 0.98V to 4.5V
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Low Dropout: 230mV @ 300mA
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Guaranteed 300mA Drive Current
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Factory Pre-set output voltage
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Only 1µF Output Capacitor Required for
Stability
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Provided OTP, current limit
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All AME’s Green Products Meet RoHS
Standards
Bandgap
Reference
ADJ
EN
R2
GND
(Adjustable Version)
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
R1
(external)
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Applications
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Data-Communication
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Laptop, Palmtops, Notebook computers
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Battery Power Equipment
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Handheld Device
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PCMCIA Cards
R2
(external)
GND
Rev.D.04
1
AME [ ANALOG MICROELECTRONICS ]
