MP8843

6V, 3A, Synchronous,

Step-Down Switcher with I

MP8843 Rev. 1.0

www.MonolithicPower.com

1

7/15/2016

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The Future of Analog IC Technology

DESCRIPTION

The MP8843 is a highly integrated, high-

frequency, synchronous, step-down switcher with

up to 3A of current from a wide 2.6V-to-6V input

supply range with excellent load and line

regulation.

Constant-on-time (COT) control provides a fast

transient response, high light-load efficiency, and

eases loop stabilization.

interface speed up to 3.4Mbps. It controls the

output voltage from 0.6V to 1.1V on the fly with

3.9mV voltage steps. This interface also controls

the output voltage transition slew rate and allows

the power-save mode selection to meet different

application requirements.

Protection features include internal soft start (SS),

over-current

protection

(OCP),

and

over-

temperature protection (OTP).

The MP8843 requires a minimal number of

readily available, standard, external components

and is available in an ultra-small QFN-12

(2mmx2mm) package.

FEATURES

 Wide Input Range from 2.6V to 6V

 Up to 3A of Continuous Current

 55mΩ and 35mΩ Internal Power MOSFET

to 3.4MHz

Feedback Resistor

 Programmable Switching Frequency from

1MHz to 2MHz

 Programmable Voltage Transition Slew Rate

Indicator

 Internal Soft Start (SS)

 Short-Circuit Protection (SCP) with Latch-Off

 Thermal Shutdown

 Available in a QFN-12 (2mmx2mm) Package

APPLICATIONS

Small/Handheld Devices

Storage Drives

Portable Instruments

Battery-Powered Devices

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.

Analog Digital Adaptive Modulation (ADAM) and Advanced Asynchronous

Mode (AAM) are trademarks of Monolithic Power Systems, Inc.

TYPICAL APPLICATION