Datasheet > NB6381

NB6381

更新时间： 2024-02-23 23:45:19

品牌	Logo	应用领域
芯源 - MPS		转换器
页数	文件大小	规格书
19页	747K
描述
High Efficiency, Fast Transient, 8A, 28V Synchronous Step-down Converter in a Tiny QFN20 (3x4mm) Package

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NB6381 数据手册

NB6381

High Efficiency, Fast Transient, 8A, 28V

Synchronous Step-down Converter

in a Tiny QFN20 (3x4mm) Package

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The NB6381 is a fully integrated, high

frequency synchronous rectified step-down

switch mode converter. It offers a very compact

solution to achieve 8A continuous output

current over a wide input supply range with

excellent load and line regulation. The NB6381

operates at high efficiency over a wide output

current load range.

•

Wide 4.5V to 28V Operating Input Range

8A Output Current

Internal 30mΩ High-Side, 12mΩ Low-Side

Power MOSFETs

Proprietary Switching Loss Reduction

Technique

1% Reference Voltage

Programmable Soft Start Time

Soft Shutdown

200kHz to 1MHz Switching Frequency

SCP, OCP, OVP, UVP Protection and

Thermal Shutdown

•

Constant-On-Time

(COT)

control

mode

provides fast transient response and eases loop

stabilization.

Full protection features include SCP, OCP, OVP,

UVP and thermal shutdown.

•

Output Adjustable from 0.8V to 13V

Available in a QFN20 (3x4mm) Package

The NB6381 requires a minimum number of

readily available standard external components

and is available in a space-saving QFN20

(3x4mm) package.

APPLICATIONS

•

Notebook Systems and I/O Power

Networking Systems

Optical Communication Systems

Distributed Power and POL Systems

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Products, Quality Assurance page.

. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks

of Monolithic Power Systems, Inc.

TYPICAL APPLICATION

8,19

BST

VIN

NB6381 _SW

9,10,17,18

FREQ

VOUT 1.05V

VCC

220pF

PGOOD

AGND PGND

11-16

C_SS

33nF

NB6381 Rev. 1.15

4/18/2012

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

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