G9966 Datasheet, PDF (1/9 Pages) Global Mixed-mode Technology Inc – 3A Low Dropout Regulator with Enable

Global Mixed-mode Technology Inc.
G9966
3A Low Dropout Regulator with Enable
Features
„ 1.5V, 1.8V, 2.5V, 3.3V and Adjustable Outputs
„ Over Current and Over Temperature Protection
„ Output Current 3A
„ Enable Pin
„ 20µA Quiescent Current in Shutdown
„ TO-263-5 Package
Applications
„ Battery Powered Systems
„ Motherboards
„ Peripheral Cards
„ Network Cards
„ Set Top Boxes
„ Notebook Computers
Ordering Information
ORDER
NUMBER
G9966-15TGU
G9966-18TGU
G9966-25TGU
G9966-33TGU
G9966-ADJTGU
MARKING
G9966-15
G9966-18
G9966-25
G9966-33
G9966
General Description
The G9966 is a high performance positive voltage
regulator designed for use in applications requiring
very low dropout voltage at up to 3 Amps. Since it has
superior dropout characteristics compared with regular
LDOs, it can be used to supply 2.5V on motherboards
or 1.5V, 1.8V, 3.3V on peripheral cards from the power
supply thus allowing the elimination of costly heatsinks.
An enable pin further reduces power dissipation while
shut down. The G9966 provides excellent regulation
over variations in line, load and temperature. It pro-
vides over current and over temperature protection
functions.
The G9966 is available with 1.5V, 1.8V, 2.5V, 3.3V
and adjustable outputs in TO-263-5 package.
TEMP.
RANGE
-40°C ~ +85°C
-40°C ~ +85°C
-40°C ~ +85°C
-40°C ~ +85°C
-40°C ~ +85°C
PACKAGE
(Pb free)
TO-263-5
TO-263-5
TO-263-5
TO-263-5
TO-263-5
Pin Configuration
G9966-XX
Typical Application Circuit
G9966-XX
VEN
VIN
VO
VEN
VIN
VO
GND
12 3 4 5
VEN VIN GND VO N.C.
TO-263-5
G9966-ADJ
123 45
VEN VIN GND VO ADJ
TO-263-5
Ver: 0.6 Preliminary
May 19, 2006
C1
220µF
C2
220µF
VEN
VIN
VO
R1
C1
C2
220µF 220µF
R2
1.2 (R1+R2)
VO =
R2
Volts
R2=12kΩ is recommended
1
G9966-ADJ
VEN
VIN
VO GND
ADJ
TEL: [phone]
http://www.gmt.com.tw