MP2128DT-LF-Z

更新时间： 2024-11-14 13:11:47

品牌	Logo	应用领域
芯源 - MPS		转换器
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8页	330K
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MP2128DT-LF-Z 数据手册

MP2128

2.5V-6V Input, 3MHz, 1A

Synchronous Step-Down Converter

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP2128 is a 3MHz constant frequency,

current mode, PWM step-down converter with

integrated main switch and synchronous

rectifier that is ideal for powering portable

equipment that runs from a single Li-Ion or Li-

Polymer battery.

•

High Efficiency: Up to 95%

3MHz Constant Switching Frequency

1A Available Load Current

2.5V to 6V Input Voltage Range

Output Voltage as Low as 0.6V

Current Mode Control

Cycle-by-Cycle Over Current Protection

Short Circuit Protection

Thermal Shutdown

<1µA Shutdown Current

Internal Soft-Start

Space Saving 5-Pin SOT23 Package and

8-pin, QFN8 2mm×2mm package

The MP2128 can supply up to 1A load current

from a 2.5V to 6V input voltage. The output

voltage can be as low as 0.6V.

Additional features include <1µA shutdown

current, internal soft-start, cycle-by-cycle over

current protection, short circuit protection, and

thermal shutdown.

The MP2128 is available in low profile (1.5mm)

5-pin SOT23 and 8-pin, QFN8 2mm×2mm

packages.

APPLICATIONS

•

Cellular Phones

Microprocessors and DSP Core Supplies

PDAs and Smart Phones

MP3 and Portable Media Players

Digital Still and Video Cameras

Portable Instruments

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

2.5V--6V

VIN

1.8V 1A

VOUT

200k

MP2128DG

OFF ON

100k

PGND

AGND

MP2128 Rev. 0.9

7/20/2009

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7 8

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