Datasheet > G5318

G5318

更新时间： 2024-02-27 08:58:50

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描述
High-Speed Step-Down Controller

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G5318 数据手册

G5318

Global Mixed-mode Technology

High-Speed Step-Down Controller

Features

General Description

Ultra-High Efficiency

G5318 is a small-sized step-down controller uses con-

stant on-time control scheme to handle wide in-

put/output voltage ratios with ease and provides 100ns

“instant-on” response to load transients while main-

taining a relatively constant switching frequency. The

G5318 achieves high efficiency at a reduced cost by

eliminating the current-sense resistor found in tradi-

tional current-mode PWMs. Efficiency is further en-

hanced by an ability to drive very large synchronous

rectifier MOSFETs. The G5318 is intended for CPU

core, chipset, DRAM, or other low-voltage supplies as

low as 0.7V. The G5318 is available in TDFN3X3-10

package.

4700ppm/°C R_DS(ON)Current Sensing ( without

Current-Sense Resistor )

Quasi-PWM with 100ns Load-Step Response

Built-in 0.5% 0.7V Reference

0.7V to 2.6V Adjustable Output Range

4.5V to 28V Battery Input Range

4 Selectable Frequency Setting

Integrated Boost Switch

OVP & UVP

1.5ms Voltage Servo Soft-Start

Drives Large Synchronous-Rectifier FETs

Power-Good Indicator

Thermal Shutdown (Non-latch)

Applications

Notebook Computers

CPU Core Supply

I/O Supply

Chipset/RAM Supply as Low as 0.7V

Ordering Information

ORDER

NUMBER

G5318RE1U

G5318RE1D

TEMP.

RANGE

PACKAGE

(Green)

MARKING

5318

-40°C to +85°C

TDFN3X3-10

Note: RE: TDFN3X3-10

1: Bonding Code

U & D : Tape & Reel

Pin Configuration

G5318

PGOOD

10 BST

11 GND

TRIP

Thermal

Pad

VCC

TDFN3X3-10

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.8

Apr 15, 2013

中文翻译

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