Datasheet > G5310

G5310

更新时间： 2024-11-25 01:25:03

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描述
High Efficiency 10A Synchronous Buck Converter

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G5310 数据手册

G5310

Global Mixed-mode Technology

High Efficiency 10A Synchronous Buck Converter

Features

General Description

Ultra-High Efficiency

G5310 is a 10A, synchronous DC/DC buck converter

with integrated 20mΩ N-channel high-side MOSFET

and 8.5mΩ N-channel low-side MOSFET. It 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

G5310 achieves high efficiency at a reduced cost by

eliminating the current-sense resistor found in tradi-

tional current-mode PWMs. Single-stage buck conver-

sion allows these devices to directly step down

high-voltage batteries for the highest possible effi-

ciency. The G5310 is intended for the power supply of

Notebook Computer, or other low-voltage supplies as

low as 0.75V. The G5310 is available in QFN4X4-28

and QFN5X5-32 package.

Integrated 8.5mΩ at VDD=5V N-Channel

MOSFET for Low Side

Integrated 20mΩ at VDD=5V N-Channel

MOSFET for High Side

No Current-Sense Resistor (Lossless I_LIMIT)

Quasi-PWM with 100ns Load-Step Response

1% VOUT Accuracy Over Line and Load

Programmable Switching Frequency

0.75V to 3.6V Adjustable Output Range

4.5V to 28V Adapter or Battery Input Range

Integrated Boost Switch

OVP & UVP

Over Temperature Protection (non-latch)

3.3ms Soft-Start

Power-Good Indicator

Applications

Notebook Computers

I/O Supply

Chipset/RAM Supply as Low as 0.75V

Networking Power Supply

Ordering Information

ORDER

NUMBER

G5310QN2U

G5310QA1U

TEMP.

RANGE

PACKAGE

(Green)

MARKING

5310

-40°C to +85°C

QFN4X4-28

QFN5X5-32

Note: QN: QFN4X4-28 QA: QFN5X5-32

1,2: Bonding Code

U : Tape & Reel

Pin Configuration

V+

ILIM

AGND

VDD

ILIM

AGND

VDD

PGND

V+

AGND

V+

AGND

V+

PGND

V+

PGND

17 PGND

G5310 QFN5X5-32

G5310 QFN4X4-28

Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.5

Apr 01, 2013

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