MP8756

Synchronous, Step-Down Converter

MP8756 Rev. 1.1

www.MonolithicPower.com

1

4/13/2017

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

© 2017 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP8756 is a fully integrated, high-

frequency, synchronous, rectified, step-down,

switch-mode converter. It offers a very compact

solution that achieves 6A of continuous output

current with excellent load and line regulation

over a wide input supply range.

The MP8756 operates with high efficiency over

a wide output-current load range based on

MPS’ proprietary switching loss reduction

MOSFETs.

Adaptive constant-on-time (COT) control mode

provides fast transient response and eases loop

stabilization. The DC auto-tune loop provides

good load and line regulation.

Full protection features include over-current limit,

over-voltage protection (OVP), under-voltage

protection (UVP), and thermal shutdown.

The converter requires a minimum number of

external components and is available in a QFN-

12 (2mmx3mm) package.

FEATURES

 Wide 4.5V to 26V Operating Input Range

 Output Adjustable from 0.6V

 Ultrasonic Mode (USM)

 117μA Low Quiescent Current

 6A Continous Output Current

 Adaptive COT for Fast Transient

 DC Auto-Tune Loop

 Stable with POSCAP and Ceramic Output

 1% Reference Voltage

 Internal Soft Start

 Output Discharge

 700kHz Switching Frequency

 OCP, OVP, UVP (Hiccup), and Thermal

Shutdown

 Available

in

a

QFN-12

(2mmx3mm)

Package

APPLICATIONS

 Laptop Computer

 Tablet PC

 Networking Systems

 Personal Video Recorders

 Flat-Panel Television and Monitors

 Distributed Power Systems

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

MPS green status, please visit the MPS website under Quality Assurance.

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

EN

VOUT

BST

VCC

VIN

PG

SW

GND

GND

MODE

FB

1V/6A

PGND

22µF

220nF

0.68µH

88uF

AGND

3.3

12V

EN

1µF

R4

499k

C5

220pF

R9

499

48.7K

66.5K

MP8756

60.00

55.00

50.00

65.00

70.00

75.00

80.00

85.00

90.00

100.00

95.00

0.01

0.1

1

10