MP2176

6V, 6A, High-Efficiency,

Synchronous Step-Down Converter

MP2176 Rev. 1.0

www.MonolithicPower.com

1

4/17/2018

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

© 2018 MPS. All Rights Reserved.

DESCRIPTION

The MP2176 is a monolithic, step-down, switch-

mode converter with internal power MOSFETs

that can achieve up to 6A of continuous output

current from a 1.5V to 6V input voltage with

excellent load and line regulation. The output

voltage can be regulated as low as 0.61V.

Constant-on-time (COT) control provides fast

transient response and eases loop stabilization.

Fault condition protections include cycle-by-

cycle current limiting and thermal shutdown.

The operating frequency is programmed by an

external

resistor

and

is

compensated

for

variations in VIN.

Full protection features, including over-current

protection (OCP), short-circuit protection (SCP),

over-voltage protection (OVP), under-voltage

protection

(UVP),

and

over-temperature

protection (OTP), are provided by internal

comparators.

The MP2176 requires a minimal number of

readily

available,

standard,

external

components and is available in a QFN-14

(3mmx4mm) package.

FEATURES

 1.5V to 6V Wide Input Range

 3V to 6V VCC Operating Supply

 6A Output Current

 Programmable Switching Frequency from

300kHz to 1MHz

 Low R

DS(ON) Internal Power MOSFETs

 Proprietary Switching Loss Reduction

Technique

 1% Reference Voltage Over -20°C to

+85°C Junction Temperature Range

 Pre-Bias Start-Up

 Minimum On Time (T

ON_MIN = 60ns)

Minimum Off Time (TOFF_MIN = 100ns)

 Non-Latch OCP, Non-Latch OVP, and

Thermal Shutdown

 Output Adjustable from 0.61V to 4.5V

 Programmable Soft-Start Time

 Available in a QFN-14 (3mmx4mm)

Package

APPLICATIONS



Flat-Panel Television and Monitors



Telecom System Base Stations



Distributed Power Systems



Personal Video Recorders



Networking Systems



Servers

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

MP2176

C1

C3

RBST

C2

C4

R4

R1

R2

VOUT

L1

RFREQ

VIN

IN

FREQ

BST

SW

FB

VCC

PG

VCC

PG

R3

C5

EN

EN

SS

C6

PGND

AGND