MP1583

更新时间： 2024-11-01 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
13页	335K
描述
3A, 23V, 385KHz Step-Down Converter

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MP1583 数据手册

MP1583

3A, 23V, 385KHz

Step-Down Converter

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP1583 is a step-down regulator with a

built-in internal Power MOSFET. It achieves 3A

of continuous output current over a wide input

supply range with excellent load and line

regulation.

•

3A Output Current

Programmable Soft-Start

100mΩ Internal Power MOSFET Switch

Stable with Low ESR Output Ceramic Capacitors

Up to 95% Efficiency

20μA Shutdown Mode

Fixed 385KHz Frequency

Thermal Shutdown

Cycle-by-Cycle Over Current Protection

Wide 4.75V to 23V Operating Input Range

Output Adjustable from 1.22V to 21V

Under-Voltage Lockout

Current mode operation provides fast transient

response and eases loop stabilization.

Fault

condition

protection

includes

cycle-by-cycle current limiting and thermal

shutdown. An adjustable soft-start reduces the

stress on the input source at startup. In

shutdown mode the regulator draws 20μA of

supply current.

APPLICATIONS

The MP1583 requires a minimum number of

external components, providing a compact

solution.

•

Distributed Power Systems

Battery Chargers

Pre-Regulator for Linear Regulators

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

Efficiency Curve

INPUT

= 10V

4.75V to 23V

100

10nF

=5.0V

OUT

15μ H

OUTPUT

2.5V

OPEN =

AUTOMATIC

STARTUP

MP1583

10.5kΩ

OUT

=2.5V

10μ F

CERAMIC

GND

COMP

=3.3V

OUT

22μ F

CERAMIC

B330A

5.6nF

10kΩ

10nF

3.9kΩ

0.5 1.0 1.5 2.0 2.5 3.0 3.5

LOAD CURRENT (A)

MP1583_EC01

MP1583 Rev. 3.1

6/20/2011

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...13

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