MP2112DJ-LF

更新时间： 2024-09-26 12:58:43

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芯源 - MPS		转换器
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MP2112DJ-LF 数据手册

MP2112

1MHz, 1A Synchronous

Step-Down Converter

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP2112 is a 1MHz constant frequency,

current mode, PWM step-down converter. The

device integrates a main switch and a

synchronous rectifier for high efficiency without

an external Schottky diode. It is ideal for

powering portable equipment that powered by a

single cell Lithium-Ion (Li+) battery. The

MP2112 can supply 1A of load current from a

2.5V to 6V input voltage. The output voltage

can be regulated as low as 0.6V. The MP2112

can also run at 100% duty cycle for low dropout

applications.

•

High Efficiency: Up to 95%

1MHz Constant Switching Frequency

1A Available Load Current

2.5V to 6V Input Voltage Range

Output Voltage as Low as 0.6V

100% Duty Cycle in Dropout

Current Mode Control

Short Circuit Protection

Thermal Fault Protection

<0.1µA Shutdown Current

Space Saving 3mm x 3mm QFN6 Package

APPLICATIONS

The MP2112 is available in a space-saving

6-pin QFN package.

•

Cellular and Smart Phones

Microprocessors and DSP Core Supplies

PDAs

MP3 Players

Digital Still and Video Cameras

Portable Instruments

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

Power Systems, Inc.

TYPICAL APPLICATION

Efficiency vs

Load Current

V_IN

2.5V to 6V

100

= 3.3V

VINA

= 4.2V

MP2112

V_OUT

1.8V/1A

VINB

GND

100

LOAD CURRENT (mA)

1000

MP2112_TAC_S01

MP2112-EC01

MP2112 Rev. 1.2

3/6/2006

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7 8

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