MP1583 데이터 시트보기 (PDF) - Monolithic Power Systems

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MP1583

3A, 23V Step Down Converter

Monolithic Power Systems 

Monolithic Power Systems

General Description

The MP1583 is a step-down regulator with a built

in internal Power MOSFET. It achieves 3A

continuous output current over a wide input

supply range with excellent load and line

regulation.

Current mode operation provides fast transient

response and eases loop stabilization.

Fault condition protection includes cycle-by-cycle

current limiting and thermal shutdown.

Adjustable soft-start reduces the stress on the

input source at turn-on. In shutdown mode the

regulator draws 20µA of supply current.

The MP1583 requires a minimum number of

readily available external components to

complete a 3A step down DC to DC converter

solution.

Ordering Information

Part Number ∗ Package

Temperature

MP1583DS

SOIC8

-40 to + 85°C

MP1583DN

SOIC8 w/ Exposed

Paddle

-40 to + 85°C

MP1583DP

PDIP8

-40 to + 85°C

EV0015

MP1583DN Evaluation Board

∗ For Tape & Reel use suffix - Z (e.g. MP1583DS-Z)

Figure 1: Typical Application Circuit

INPUT

4.75 to 23V

IN

BS

SW

EN M P1583

SS

GND

FB

COMP

MP1583

3A, 23V

Step Down Converter

Features

ƒ 3A Output Current

ƒ Programmable Soft-Start

ƒ 100mΩ Internal Power MOSFET Switch

ƒ Stable with Low ESR Output Ceramic

Capacitors

ƒ Up to 95% Efficiency

ƒ 20µA Shutdown Mode

ƒ Fixed 385KHz frequency

ƒ Thermal Shutdown

ƒ Cycle-by-Cycle Over Current Protection

ƒ Wide 4.75 to 23V operating Input Range

ƒ Output Adjustable From 1.22 to 21V

ƒ Under Voltage Lockout

ƒ Available in 8 pin SOIC Package

ƒ 3A Evaluation Board Available

Applications

ƒ Distributed Power Systems

ƒ Battery Charger

ƒ Pre-Regulator for Linear Regulators

OUTPUT

2.5V, 3A

MP1583 Rev 2.0_06/30/04

www.monolithicpower.com

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