Document
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 RDS(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 automatically 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
VIN 5.5V~14V
C1 10µF
OFF ON
RC CC
EN IN
COMP G5632
LX
GND PGND FB
L1 4.7µH
R1
R2
VOUT , 2A C2 47µF
VOUT = 0.8
×
( 1+
R1 R2
)
Ver: 0.1 Apr 30, 2008
TEL: 886-3-5788833 http://www.gmt.com.tw
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