AME
AME8818
n
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
n
Functional Block Diagram
(Fixed Version)
IN
OUT
Overcurrent
Shutdown
A
Thermal
Shutdown
EN
R1
BYP/NC
Bandgap
Reference
R2
n
Features
l
Input voltage range is from 2.5V to 5.5V
l
Output Voltage Range:
Fixed Version is from 1.2V to 4.5V
ADJ Version is from 0.98V to 4.5V
l
Low Dropout: 230mV @ 300mA
l
Guaranteed 300mA Drive Current
l
Factory Pre-set output voltage
l
Only 1µF Output Capacitor Required for
Stability
l
Provided OTP, current limit
l
Green Products Meet RoHS Standards
Bandgap
Reference
ADJ
R2
(external )
EN
GND
(Adjustable Version)
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
R1
(external )
GND
n
Applications
l
l
l
l
l
Data-Communication
Laptop, Palmtops, Notebook computers
Battery Power Equipment
Handheld Device
PCMCIA Cards
Rev.D.06
1
AME [ ANALOG MICROELECTRONICS ]
