MP8712

High-Efficiency, 12A, 3V to 18V,

Synchronous Step-Down Converter with

Power Good, External Soft Start and OVP

MP8712 Rev. 1.2

MonolithicPower.com

1

3/19/2021

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© 2021 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP8712 is a high-frequency, synchronous,

rectified, step-down, switch-mode converter.

The MP8712 offers a fully integrated solution

that achieves 12A of continuous and 15A of

peak output current with excellent load and line

regulation over a wide input supply range.

Constant-on-time

(COT)

control

operation

provides fast transient response. An open-drain

power good pin (PG) indicates that the output

voltage is in the nominal range. Full protection

features include over-voltage protection (OVP),

over-current protection (OCP), and thermal

shutdown.

The MP8712 is available in a QFN-14

(3mmx4mm) package.

FEATURES

 Wide 3V to 18V Operating Input Range

 12A Continuous/15A Peak Output Current

 1% Internal Reference Accuracy

 Output Adjustable from 0.6V

 15mΩ High-Side, 4.5mΩ Low-Side RDS(ON)

for Internal Power MOSFETs

 500kHz Switching Frequency

 External Soft Start (SS)

 Open-Drain Power Good (PG) Indication

 Output Over-Voltage Protection (OVP)

 Hiccup Over-Current Protection (OCP)

 Thermal Shutdown

 Available

in

a

QFN-14

(3mmx4mm)

Package

APPLICATIONS

 Solid-State Drives (SSD)

 Flat-Panel Televisions and Monitors

 Set-Top Boxes

 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”, the MPS logo, and “Simple, Easy Solutions” are

registered trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

TYPICAL APPLICATION

MP8712

EN

VIN

C1

22µF x 2

VIN

VO

AGND

C2

22µF x 4

PG

VOUT

3V to 18V

L1

1.5µH

1V/12A

VCC

C5

470nF

SS

BST

C6

22nF

C3

100nF

SW

PGND

FB

R1

80.6kΩ

EN

PG

R3

10



R2

120kΩ

OUTPUT CURRENT (A)

0.1

1

10

60

64

68

72

76

80

84

88

92

96

100

VIN=12V

VIN=4.5V

VIN=18V