G5320 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Asynchronous Voltage Mode Controller

Global Mixed-mode Technology
G5320
Asynchronous Voltage Mode Controller
Features
„ Input Voltage: 4.5V to 27V
„ Output Voltage (700mV to 90% V_IN)
„ 200mA Internal P-Channel FET Driver
„ Voltage Feed-Forward Compensation
„ Undervoltage Lockout
„ Hiccup Overcurrent Fault Recovery
„ Programmable Fixed Frequency (35~500KHz)
Operation
„ Programmable Short Circuit Protection
„ 700 mV 1% Reference Voltage
„ Programmable Closed Loop Soft Start
„ Disable Function Available
„ Programmable Over-Voltage Protection
„ MSOP-10 with Exposed Pad Package Available
Applications
„ ^Telecom
„ DSL/Cable Modems
„ Scanners
„ Power Applications
Ordering Information
ORDER
NUMBER
G5320F61U
Note: F6: MSOP-10 (FD)
1: Bonding Code
U: Tape & Reel
Pin Configuration
MARKING
G5320
General Description
The G5320 is a flexible asynchronous buck controller
with a built in 200mA driver for P-channel FETs. The
input voltage is up to 27V. The G5320 operates with
voltage-mode feedback and has feed-forward in-
put-voltage compensation that responds instantly to
input voltage change. The internal 700mV reference is
trimmed to 1%, giving accurate output voltages. Clock
frequency, soft-start, and overcurrent limit are each
easily programmed by a single, external component.
Over voltage protection (OVP) can be adjusted by set-
ting the external resistors. Input under-voltage lockout
is implemented. The G5320 is available in 10-pin
MSOP exposed pad package.
TEMP.
RANGE
-40°C to +125°C
PACKAGE
(Green)
MSOP-10 (FD)
G5320
RC ¹
SS 2
DIS/EN 3
COMP 4
FB 5
11 GND
Thermal
Pad
10 VDD
9 BP
8 ISNS
7 GDRV
6 OVP
MSOP-10 (FD)
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
Ver: 0.3
May 04, 2012
TEL: [phone]
http://www.gmt.com.tw
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