EV5455-L-00A

Peak Power Assist for Smart/AI-Enabled

Speakers, Evaluation Board

EV5455-L-00A Rev.1.2

www.MonolithicPower.com

1

2/2/2018

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

© 2018 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

EV5455-L-00A Evaluation Board is designed to

demonstrate the capabilities of MP5455. The

MP5455 is designed as a peak power assist for

low power applications, releasing energy as

needed during peak loading events. The

internal input-current-limit block with dv/dt

control prevents inrush current during system

start-up; the bus voltage start-up slew rate is

programmable. MPS’s patented power back-up

control circuit minimizes the storage capacitor

requirement. It pumps the input voltage to a

higher storage voltage and releases the energy

over a hold-up time to the system in the case of

an input outage. The storage voltage and the

release voltage are both programmable for

different system requirements.

The MP5455 is available in a space QFN20

(3mmX4mm) package.

ELECTRICAL SPECIFICATION

Parameter

Symbol Value Units

Input Voltage

3.5-5

V

Charge Voltage

23.5

V

Bus Release Voltage

3.2

V

Boost Inductor Peak Current

0.4

A

Buck Max Output Current

2

A

FEATURES

 Wide 2.7 to 7V Operating Input Range for

MP5455

 60mΩ Back to Back Switch for Input Current

Limit Circuit and Reverse Current Blocking

 Reverse Current Protection

 6V Bus Clamping Voltage

 Power on Reset

 Adjustable dv/dt Slew Rate for Bus Voltage

Start-up

 Thermal Protection

 Available in an QFN20(3mmx4mm)

Package

APPLICATIONS

 Peak Power Smoother for Smart Speakers

 Artificial Intelligence (AI)-Enabled Speakers

 Power Back-Up

 Battery Hold-Up Supplies

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.

EV5455-L-00A EVALUATION BOARD

(L x W) 6.35cm x 6.35cm

Board Number

MPS IC Number

EV5455-L-00A

MP5455GL

Release 

CH1:

1V/div.

CH2:

10V/div.

CH2:

10V/div.

2A/div.

2ms/div.