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SK23

更新时间： 2024-11-28 06:11:47

品牌	Logo	应用领域
芯源 - MPS		转换器二极管光电二极管 IOT
页数	文件大小	规格书
10页	249K
描述
2A, 380 KHz Step-Down Converter

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SK23 数据手册

MP1580

2A, 380 KHz

Step-Down Converter

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP1580 is a monolithic step-down switch

mode converter with a built in internal power

MOSFET. It achieves 2A continuous output

current over a wide input supply range with

excellent load and line regulation.

•

2A Output Current

0.18Ω Internal Power MOSFET Switch

Stable with Low ESR Output Ceramic

Capacitors

Up to 95% Efficiency

23µA Shutdown Mode

•

Current mode operation provides fast transient

response and eases loop stabilization.

Fixed 380KHz Frequency

Thermal Shutdown

Fault condition protection includes cycle-by-cycle

current limiting and thermal shutdown. In

shutdown mode the regulator draws 23µA of

supply current.

Cycle-by-Cycle Over Current Protection

Wide 4.75 to 25V Operating Input Range

Output Adjustable from 1.22V to 21V

Programmable Under Voltage Lockout

Frequency Synchronization Input

Available in an 8-Pin SO Package

The MP1580 requires a minimum number of

readily available standard external components. A

synchronization pin allows the part to be driven to

600KHz.

APPLICATIONS

•

Distributed Power Systems

Battery Chargers

Pre-Regulator for Linear Regulators

EVALUATION BOARD REFERENCE

Board Number

Dimensions

EV0007

2.3”X x 1.5”Y x 0.5”Z

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

Power Systems, Inc.

TYPICAL APPLICATION

Efficiency vs

Output Current Voltage

10nF

INPUT

= 5.0V

4.75V to 25V

OUT

= 3.3V

OUT

OUTPUT

2.5V / 2A

OFF ON

= 2.5V

MP1580

OUT

OPEN

NOT USED

SYNC

GND

COMP

2.2nF

OPEN

= 10V

0.5

1.5

OUTPUT CURRENT (A)

MP1580_TAC_S01

MP1580_TAC_EC01

MP1580 Rev. 3.0

12/5/2005

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...10

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