MPQ2128

2.5V-to-6V Input, 3MHz, 1A

Synchronous, Step-Down Converter

Available in AEC-Q100

MPQ2128 Rev. 1.1

www.MonolithicPower.com

1

4/1/2013

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© 2013 MPS. All Rights Reserved.

`DESCRIPTION

The MPQ2128 is a 3MHz, constant-frequency,

current-mode, PWM, step-down converter. It

has an integrated main switch and synchronous

rectifier that make it ideal for low-voltage

conversions.

The MPQ2128 can supply up to 1A load current

from a 2.5V-to-6V input voltage. The output

voltage can go as low as 0.6V.

Additional features include <1

μA shutdown

current, internal soft-start, cycle-by-cycle over-

current protection, short-circuit protection, and

thermal shutdown.

The MPQ2128 is available in a 2mm×2mm 8-

pin QFN package.

FEATURES

• Meets Automotive Requirements

• Highly Efficient: Up to 95%

• 3MHz Constant-Switching Frequency

• 1A Available Load Current

• 2.5V-to-6V Input Voltage Range

• Output Voltage as Low as 0.6V

• Current-Mode Control

• Cycle-by-Cycle Over-Current Protection

• Short-Circuit Protection

• Thermal Shutdown

• <

1μA Shutdown Current

• Internal Soft-Start

• QFN8 (2mm×2mm) Package

• AEC-Q100 Qualified

APPLICATIONS

• Industrial/Automotive

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