MPQ2166

6V, Dual 2A/2A or 3A/1A,

Low Quiescent Current,

Synchronous Buck with PG and SS

AEC-Q100 Qualified

MPQ2166 Rev. 1.11

www.MonolithicPower.com

1

5/31/2017

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The Future of Analog IC Technology

DESCRIPTION

The MPQ2166 is an internally compensated,

dual, PWM, synchronous, step-down regulator

that operates from a 2.7V to 6V input and

generates an output voltage as low as 0.6V.

The MPQ2166 can be configured as a 2A/2A or

3A/1A output current regulator and is ideal for

powering portable equipment that runs on a

single-cell lithium-ion (Li+) battery due to a low

60µA quiescent current.

The MPQ2166 integrates dual, 55mΩ, high-side

switches and 20mΩ synchronous rectifiers for

high efficiency without an external Schottky

diode. The MPQ2166 has peak-current-mode

control and internal compensation and is

capable of low dropout configurations. Both

channels can operate at 100% duty cycle.

Full protection features include cycle-by-cycle

current limit and thermal shutdown.

The MPQ2166 requires a minimum number of

readily available, standard, external components

and is available in QFN-18 (2mmx3mm) and

QFN-18 (2.5mmx3.5mm) packages.

FEATURES

 2.7V to 6V Operating Input Range

 2A/2A or 3A/1A Continuous Current

 Programmed Frequency up to 3MHz

 External Sync Clock Up to 3MHz

 PG Indicators

 External SS and Track

 Adjustable Advanced Asynchronous Mode

(AAM) or Forced Continuous Conduction

Mode (CCM)

 Peak Efficiency >90%

 Output Adjustable from 0.6V to VIN

 100% Duty Cycle Operation

 60µA Quiescent Current

 Cycle-by-Cycle Over-Current Protection

(OCP)

 Short-Circuit Protection (SCP) with Hiccup

Mode and Valley Current Detection

 Thermal Shutdown

 Available in QFN-18 (2mmx3mm) and QFN-

18 (2.5mmx3.5mm) Packages

 Available in AEC-Q100 Grade-1

APPLICATIONS

 Small/Handheld Devices

 DVD Drivers

 Smartphones and Feature Phones

 Battery-Powered Devices

 Portable Instruments

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.