MP1493

3A, 4.2V-16V Input, Fast Transient

Synchronous Step-down Converter

MP1493 Rev. 1.15

www.MonolithicPower.com

1

12/9/2013

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP1493 is a fully integrated, high–

efficiency 3A synchronous rectified step-down

converter. The MP1493 operates at high

efficiency over a wide output current load range.

Adaptive

Constant-On-Time

(COT)

control

mode provides fast transient response, eases

loop stabilization, and operates with a low-cost

electrolytic capacitor.

The MP1493 requires a minimum number of

readily available standard external components

and is available in an 8-pin SOIC ROHS

compliant package.

FEATURES

• Wide 4.2V to 16V Operating Input Range

• 3A Output Current

• Adaptive COT for Fast Transient

Response

• Proprietary Switching Loss Reduction

Technique

• Programmable Switching Frequency

• OCP, SCP, OVP, UVP Protection and

Thermal Shutdown

• Optional OCP Protection: Latch-off Mode

and Hiccup Mode

• Output Adjustable from 0.805V to 13V

APPLICATIONS

•

Digital Set Top Boxes

•

Flat Panel Television and Monitors

•

Distributed Power Systems

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Quality Assurance. “MPS” and “The

Future of Analog IC Technology” are Registered Trademarks of Monolithic

Power Systems, Inc.

TYPICAL APPLICATION

6

7

8

2

3

1

4

453k

499k

MP1493

VIN

ON/OFF

5

VOUT 2.5V

R1

41k

R2

20k

IN

FREQ

BYP

EN

GND

FB

SW

BST