EV5403-QB-02A

High Efficiency Dual Buck and One Load

Switch Power Management Unit EV Board

EV5403-QB-02A Rev.1.0

www.MonolithicPower.com

1

2/6/2017

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

© 2017 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV5403-QB-02A Evaluation Board is

designed to demonstrate the capabilities of

MPS’ MP5403. The MP5403 is a monolithic

power management unit containing two high

efficiency step-down switching converters and a

load switch. The two regulators supply current

up to 3.5A and 2.5A separately and the load

switch supplies up to 3A load current with

range up to 6V, the MP5403 is ideal for

powering ASIC and SOC for Solid-State Drive

or other compact power systems.

The MP5403 requires a minimum number of

readily available standard external components

and is available in a small QFN20 (2.5mmx3mm)

package.

ELECTRICAL SPECIFICATION

Parameter

Symbol

Value

Units

Input Voltage

2.7 – 6

V

Output

Voltage

1.2/1.2

V

Output

Current

3.5/2.5

A

FEATURES

 Up to 6V Operating Input Range

 Low IQ: 85µA for Two Switchers Totally

 Two Buck Converters:

 1.5MHz Switching Frequency

 Soft Start and Output Discharge

 Over Current Protection

 Input Power Good Indicator with Adjustable

Threshold and Delay

 Thermal Shutdown

 Available in a QFN20 (2.5mmx3mm) Package

APPLICATIONS

 Solid-State Drive

 Portable Instruments

 Battery-Powered Devices

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.

EV5403-QB-02A EVALUATION BOARD

(L x W x H) 6.5cm x 6.5cm x 1.6cm

Board Number

MPS IC Number

EV5403-QB-02A

MP5403