Datasheet > MP2249DN

MP2249DN

更新时间： 2024-11-03 12:06:07

品牌	Logo	应用领域
芯源 - MPS		转换器
页数	文件大小	规格书
12页	404K
描述
1MHz, 6V, 3A, Low-Voltage Synchronous Step-Down Converter

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MP2249DN 数据手册

MP2249

1MHz, 6V, 3A, Low-Voltage

Synchronous Step-Down Converter

The Future of Analog IC Technology

DESCRIPTION

FEATURES

•

High Efficiency: Up to 90%

Power Save Mode at Light Load

1MHz Constant Switching Frequency

Up to 4.5A Peak Current

2.5V to 6V Input Voltage Range

Output Adjustable from 0.6V to VIN

100% Duty Cycle in Dropout

Output Discharge Function

Internal Soft-Start Control

Power Good Indicator

The MP2249 is a 1MHz constant frequency,

current mode, PWM step-down converter. The

device integrates a main switch and a

synchronous rectifier for high efficiency and

eliminates the need for an external Schottky

diode. It is ideal for powering portable

equipment that runs from a single cell Lithium-

Ion (Li+) battery.

The MP2249 can supply 3A of load current from

a 2.5V to 6V input voltage. It can run at 100%

duty cycle for low dropout applications. The

MP2249 provides internal soft-start control to

reduce rush current and output discharge

function to control discharging of the output

capacitor.

Short Circuit Protection

Thermal Fault Protection

Available in 3mmx3mm TQFN10 or SOIC8E

Package

APPLICATIONS

The MP2249 is available in small 3mmx3mm

TQFN10 or SOIC8E 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 Registered Trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

V /5V

PVIN

MP2249

PVIN

2. 2 H

V_OUT/1.8V

GND

ON OFF

MP2249 Rev.1.0

11/2/2010

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...12

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