G5632 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – null

Global Mixed-mode Technology Inc.
2A Buck Converter
G5632
Features
„ 5V to 14V Input Supply Range
„ Up to 95% Efficiency
„ Synchronous Switches
„ No External Schottky Diodes Needed
„ Internal Soft Start
„ Output Voltage Adjustable to 0.8V
„ 2A continuous output current
„ Fixed 500kHz Switching Frequency
„ PWM/PFM Operations
„ Cycle-by-Cycle Current Limit
„ Short Circuit Protection
„ Thermal shutdown
„ SOP-8 Package
Applications
„ Note Book Computers
„ Portable DVD players
„ Optical Storages
„ LCD Panels
„ Telecom Equipments
„ Portable Devices
General Description
The G5632 is a high efficiency, 2A buck converter with
two low R_DS(ON) switches. It operates from 5V to 14V
input voltage range, and provides up to 2A continuous
output current with the output voltage adjustable down
to 0.8V. Whenever the load is light, the G5632 auto-
matically change the PWM operation mode to PFM
operation to minimize the power consumption. Hence
it is suitable for battery-powered devices.
The G5632 is available in a SOP-8 package.
Ordering Information
ORDER
NUMBER
MARKING
G5632P11U G5632
Note: P1:SOP-8
1: Bonding Code
U: Tape & Reel
TEMP.
RANGE
-40°C to +85°C
PACKAGE
(Pb free)
SOP-8
Pin Configuration
Typical Application Circuit
PGND 1
IN 2
GND 3
FB 4
G5632
SOP-8
8 LX
7 LX
6 EN
5 COMP
V_IN
5.5V~14V
C1
10µF
OFF ON
R_C
C_C
EN
IN
LX
COMP ^G5632
GND PGND ^FB
L1
4.7µH
R1
R2
V_OUT , 2A
C2
47µF
R1
V_OUT = 0.8 × ( 1+ _R2 )
Ver: 0.1
Apr 30, 2008
TEL: [phone]
http://www.gmt.com.tw
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