Datasheet > MP38875

MP38875

更新时间： 2024-04-09 19:01:19

品牌	Logo	应用领域
芯源 - MPS		栅驱动驱动器
页数	文件大小	规格书
14页	589K
描述
15A, 16V, 800kHz 降压变换器，具有同步栅级驱动器

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MP38875 数据手册

MP38875

15A, 16V, 800kHz Step-Down

Converter with Synchronous Gate Driver

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP38875 is a monolithic step-down switch

mode converter with a built in internal power

MOSFET. It achieves 15A continuous output

current over a wide input supply range with

excellent load and line regulation.

•

Wide 4.5V to 16V Operating Input Range

15A Output Current

25mΩ Internal Power MOSFET Switch

Synchronous Gate Driver

Synch from 300KHz to > 1MHz External Clock or

800KHz Fixed Switching Frequency

Synch Output to Drive Another Regulator in

Phase-Shift Operation

Feedback Voltage Accuracy: 2%

Programmable Soft-Start

Current mode operation provides fast transient

response and eases loop stabilization.

•

Fault condition protection includes cycle-by-cycle

current limiting and thermal shutdown.

•

The MP38875 requires a minimum number of

readily available standard external components

and is available in a 20-pin 3mm x 4mm QFN

package.

Startup Tracking

EN and Power Good for Power Sequencing

Cycle-by-Cycle Over Current Protection

Thermal Shutdown

Output Adjustable from 0.8V to 12V

Stable with Low ESR Output Ceramic

Capacitors

The MP38875 is ideal for a wide range of

applications including distributed power systems,

pre-regulator for linear regulators, compact DC-

DC regulators for PCB space limited platforms.

•

Available in a 3mm x 4mm QFN Package

APPLICATIONS

•

Distributed Power Systems

Pre-Regulator for Linear Regulators

Compact DC-DC Regulator for PCB Space

Limited Platforms

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

Power Systems, Inc.

TYPICAL APPLICATION

Efficiency vs. Output Current

V_IN=12V,V_O=1.8V

System

100

BST

22uF

25V

1uF

0.72uH

OUT

1.8V/15A

COMP

VCC

MP38875

SS/TRK

100uF

6.3V

OFF ON

SYNCIN

SYNCOUT GND

10 12 14 16

I_OUT(A)

MP38875 Rev. 0.9

11/20/2009

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...14

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