MP8762

High Efficiency, 10A, 18V

Synchronous Step-down Converter

MP8762 Rev. 1.4

www.MonolithicPower.com

1

11/4/2013

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© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP8762 is a fully integrated high frequency

synchronous rectified step-down switch mode

converter. It offers a very compact solution to

achieve 10A output current over a wide input

supply range with excellent load and line

regulation. The MP8762 operates at high

efficiency over a wide output current load range.

The MP8762 adopts Constant-On-Time (COT)

control mode that provides fast transient

response and eases loop stabilization.

Operation frequency can be programmed easily

from 200kHz to 1MHz by an external resistor

and keeps nearly constant as input supply

varies by the feedforward compensation.

Under voltage lockout is internally set at 4.1V,

but can be increased by programming the

threshold with a resistor network on the enable

pin. The output voltage startup ramp is

controlled by the soft start pin. An open drain

power good signal indicates the output is within

its nominal voltage range.

Full integrated protection features include OCP,

OVP and thermal shutdown.

The MP8762 requires a minimum number of

readily available standard external components

and are available in QFN 3X4 package.

FEATURES

• 2.5V to 5V Operating Input Range with

External 5V Bias

• 4.5V to 18V Operating Input Range with

Internal Bias

• 10A Output Current

• Proprietary Switching Loss Reduction

Technique

• Adaptive COT for Ultrafast Transient

Response

• 1.5% Reference Voltage Over -40°C to

+125

°C Junction Temperature Range

• Programmable Soft Start Time

• Pre-Bias Start up

• Programmable Switching Frequency from

200kHz to 1MHz

• Non-latch OCP, OVP Protection and

Thermal Shutdown

• Output Adjustable from 0.611V to 13V

APPLICATIONS

•

Set-top Boxes

•

XDSL Modem/DSLAM

•

Small-cell Base Stations

•

Personal Video Recorders

•

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 Products, Quality Assurance page.

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

IN

FREQ

VCC

EN

PGND

BST

FB

SW

MP8762

ON/OFF

C1

C5

C3

L1

R4

C4

R1

R2

C2

R3

PG

AGND

SS

C6