MP1471

High-Efficiency, 3A Peak,

16V, 500kHz Synchronous,

Step-Down Converter In a 6-Pin TSOT 23

MP1471 Rev. 1.01

www.MonolithicPower.com

1

8/27/2013

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

© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP1471 is a high-frequency, synchronous,

rectified, step-down, switch-mode converter

with internal power MOSFETs. It offers a very

compact solution to achieve a 3A peak output

current over a wide input supply range, with

excellent load and line regulation. The MP1471

has synchronous-mode operation for higher

efficiency over the output current-load range.

Current-mode operation provides fast transient

response and eases loop stabilization.

Protection

features

include

over-current

protection and thermal shutdown.

The MP1471 requires a minimal number of

readily-available,

standard,

external

components and is available in a space-saving

6-pin TSOT23 package.

FEATURES

• Wide 4.7V-to-16V Operating Input Range

MOSFETs

• Proprietary Switching-Loss–Reduction

Technology

• High-Efficiency Synchronous-Mode

Operation

• Fixed 500kHz Switching Frequency

• Internal AAM Power-Save Mode for High

Efficiency at Light Load

• Internal Soft-Start

• Over-Current Protection and Hiccup

• Thermal Shutdown

• Output Adjustable from 0.8V

• Available in a 6-pin TSOT-23 package

APPLICATIONS

• Game Consoles

• Digital Set-Top Boxes

• Flat-Panel Television and Monitors

• General Purposes

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

status, please visit MPS website under Products, Quality Assurance page.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

VIN

R2

13k

R1

40.2k

R3

40.2k

IN

U1

GND

MP1471

1

4

VOUT

2

6

3

5

EN

FB

SW

BST

3.3V

EN

GND

50

55

60

65

70

75

80

85

90

95

100

0.01

0.1

1

10