MPQ2167

6V, 4A, Frequency Programmable

Buck Converter

AEC-Q100 Qualified

MPQ2167 Rev. 1.0

www.MonolithicPower.com

1

3/21/2019

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© 2019 MPS. All Rights Reserved.

DESCRIPTION

The MPQ2167 is a frequency programmable

(300kHz to 2.2MHz) synchronous step-down

converter. It can achieve up to 4A continuous

output current with peak current control for

excellent transient response and efficiency

performance. The MPQ2167 operates from a

2.7V to 6.0V input range and generates an

output voltage as low as 0.606V. It is ideal for a

wide range of applications, including automotive

infotainment, clusters, telematics, and portable

instruments.

The MPQ2167 integrates a 35mΩ high-side

switch and a 25mΩ synchronous rectifier for

high efficiency without an external Schottky

diode.

With

internal

compensation,

the

MPQ2167 requires a minimum number of readily

available standard external components and is

available in a QFN-11(2mm x 3mm) package.

The MPQ2167 can be configured for either

advanced asynchronous mode (AAM) or forced

continuous conduction mode (FCCM) operation

at light load. AAM provides high efficiency by

reducing switching losses at light load while

FCCM has controllable frequency and a lower

output ripple.

The MPQ2167 offers standard features, including

soft-start, enable control, and a power good

indicator. In addition, the MPQ2167 provides

over-current

protection

with

valley

current

detection, which is used to avoid current runaway.

Also, it has short-circuit protection, reliable over-

voltage protection, and auto recovery thermal

protection.

FEATURES

 2.7V to 6.0V Operating Input Range

 Adjustable Output from 0.606V

 Up to 4A Continuous Output current

 High Efficiency Synchronous Mode Control

 35mΩ and 25mΩ Internal Power MOSFET

 Programmable Frequency up to 2.2MHz

 42μA Quiescent Current

 Low Shutdown Mode Current

 100% Duty Cycle Operation

 Internal Compensation Mode

 Selectable AAM or FCCM Operation Option

 External Soft Start

 Remote EN Control

 Power Good Indicator

 Cycle-by-Cycle Over-Current Protection

 Short-Circuit Protection

 VIN Under-Voltage Lockout

 VOUT Over-Voltage Protection

 Thermal Shutdown

 Available in QFN-11(2mm x 3mm) Package

 Available in AEC-Q100 Grade-1

APPLICATIONS



Automotive Infotainment



Automotive Clusters



Automotive Telematics



Industrial Supplies



Battery-Powered Devices

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

directive. For MPS green status, please visit MPS website under Quality

Assurance.

“MPS” and “The Future of Analog IC Technology” are Registered

Trademarks of Monolithic Power Systems, Inc.