Datasheet > G5212

G5212

更新时间： 2024-11-10 01:25:51

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描述
Wide Input Range Synchronous Buck DCDC Voltage Mode PWM Controller

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G5212 数据手册

G5212

Global Mixed-mode Technology

Wide Input Range Synchronous Buck DCDC Voltage

Mode PWM Controller

General Description

Features

10V to 28V Wide Input Voltage Range

The G5212 is a wide input range and fixed-frequency

PWM controller with integrated MOSFET drivers for

single power rail synchronous single-phase buck con-

verter. G5212 utilizes voltage-mode control with inter-

nal compensation and an internal 0.8V reference volt-

age to implement the converter design. The switching

frequency is fixed at 400kHz to reduce the external

passive component size and make the board compact.

The G5212 provides under voltage protection, current

limit, over current protection and over temperature

protection. For the over current protection function, the

low-side MOSFET R_DS(ON)is used to sense the induc-

tor current.

0.8V Internal Reference

Fixed 400kHz Switching Frequency

Internal Soft Start function

High DC Gain

Voltage Mode PWM Controller

Fast Transient Response

0 to 80% Duty Cycle

Over Current Protection

Under Voltage Protection

Over Temperature Protection

Compact Package TSOT-23-8

RoHS Compliant and Halogen Free

Applications

Set-Top Box Power Supplies

PC Subsystem Power Supplies

Cable Modems, DSL Modems

DSP and Core Communication Processor

Power Supplies

Memory Power Supplies

Personal Computer Peripherals

Industrial Power Supplies

Low Voltage Distributed Power Supplies

Ordering Information

ORDER

NUMBER

G5212Y51U

TEMP.

RANGE

-40°C to +85°C

PACKAGE

(Green)

TSOT-23-8

MARKING

5212x

Note:Y5:TSOT-23-8

1: Bonding Code

U: Tape & Reel

Pin Configuration

Typical Application Circuit

V_IN

C_IN

G5212

VCC

C_BOOT

G5212

VCC

BOOT

LGATE

GND

VIN

UGATE

PHASE

V_OUT

PHASE

BOOT

VIN

R3 C3

C_OUT

LGATE

GND

UGATE

TSOT-23-8

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.1

Apr 02, 2013

中文翻译

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