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 (70uA
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
1uF or larger.
Low Dropout
300mA CMOS Regulator
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Functional Block Diagram
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
EN
R1
A
BYP/NC
Bandgap
Reference
R2
GND
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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 is from 1.2V 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 1uF 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
C
IN
1µF
EN
AME8818
NC
GND
C
OUT
1µF
V
IN
V
OUT
IN
OUT
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Typical Application
Figure 1
V
IN
V
OUT
IN
EN
OUT
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Applications
EN
C
IN
1µF
AME8818
GND
C
OUT
1µF
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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
OFF
ON
BYP
C2
1nF
Figure 2
Rev.A.01
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