AME
Low Dropout
600mA CMOS Regulator
AME8819
n General Description
n Functional Block Diagram
(Fixed Version)
The AME8819 is a CMOS linear regulator. It operated from
2.5V to 5.5V input voltage and delivers up to 600mA output
current. The AME8819 provide low quiescent current (70uA
typ) low dropout voltage (Vout=3.3V, 540mV @ 600mA typ),
and excellent PSRR, thus marking them ideal for Data-Com-
munications and battery applications.
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
R1
The AME8819 provide over temperature and over current
protected functions. It is stable with an output capacitance of
2.2uF or larger.
Bandgap
Reference
R2
GND
n Features
l Input voltage range is from 2.8V to 5.5V
l Output voltage range is from 1.8V to 4.5V
l Low Dropout: 540mV @ 600mA, VOUT = 3.3V
l Guaranteed 600mA Drive Current
(Adjustable Version)
IN
OUT
Overcurrent
Shutdown
l Factory Pre-set output voltage
Thermal
Shutdown
l Only 2.2mF Output Capacitor Required for
Stability (Low ESR MLCC is allowable)
R1
(external)
EN
l Provided OTP, current limit
l All AME’ s Green Products Meet RoHS
Standards
Bandgap
ADJ
Reference
R2
(external)
GND
n Applications
l Data-Communication
l Laptop, Palmtops, Notebook computers
l Battery Power Equipment
l Handheld Device
l PCMCIA Cards
Rev.B.01
1
AME [ ANALOG MICROELECTRONICS ]
