Datasheet > D01605T-472

D01605T-472

更新时间： 2024-11-15 03:27:55

品牌	Logo	应用领域
芯源 - MPS		转换器
页数	文件大小	规格书
8页	281K
描述
1MHz, 800mA Synchronous Step-Down Converter

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D01605T-472 数据手册

MP2105

1MHz, 800mA Synchronous

Step-Down Converter

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP2105 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 runs from a

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

MP2105 can supply 800mA of load current from

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

can be regulated as low as 0.6V. The MP2105

can also run at 100% duty cycle for low dropout

applications.

•

High Efficiency: Up to 95%

1MHz Constant Switching Frequency

800mA 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 5-Pin TSOT23 Package

APPLICATIONS

The MP2105 is available in a low profile (1mm)

5-pin, TSOT package.

•

Cellular and Smart Phones

Microprocessors and DSP Core Supplies

PDAs

MP3 Players

Digital Still and Video Cameras

Portable Instruments

EVALUATION BOARD REFERENCE

Board Number

Dimensions

EV2105DJ-00A

2.0”X x 2.0”Y x 0.5”Z

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

Power Systems, Inc.

TYPICAL APPLICATION

Efficiency vs

Load Current

100

= 3.3V

OUTPUT

1.8V

800mA

INPUT

2.5V to 6V

MP2105

= 4.2V

OFF ON

GND

MP2105_TAC_S01

100

LOAD CURRENT (mA)

1000

MP2105-EC01

MP2105 Rev. 1.3

5/11/2006

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7 8

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