EV2143H-D-00A

3A, 5.5V, 2MHz Synchronous

Step-Down Switcher Evaluation Board

EV2143H-D-00A Rev.1.0

www.MonolithicPower.com

1

5/15/2015

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

© 2015 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV2143H-D-00A is used for demonstrating

the performance of MPS’s MP2143H, a

monolithic, step-down, switch-mode converter

with internal power MOSFETs. It can achieve

up to 3A continuous output current from a

2.5V–to-5.5V input voltage with excellent load

and line regulation. The output voltage can be

regulated as low as 0.6V.

Constant-on-time control provides fast transient

response and eases loop stabilization. Fault

condition protections include cycle-by-cycle

current limiting and thermal shutdown.

MP2143H is ideal for wide range of applications

including high-performance DSPs, FPGAs,

portable instruments, and automotive power

systems.

MP2143H is available in QFN10 package.

EV2143H-D-00A contains two different layouts,

a tiny one and a normal one. They will work

with different thermal performances.

ELECTRICAL SPECIFICATION

Parameter

Symbol

Value

Units

Input Voltage

(1)

2.5– 5.5

V

Output Voltage

1.2

V

Output Current

3

A

FEATURES

 Wide 2.5V-to-5.5V Operating Input Range

 Output Voltage as Low as 0.6V

 100% Duty Cycle in Dropout

 Up to 3A Output Current

 80mΩ and 40mΩ Internal Power MOSFET

Switches

 Default 2.0MHz Switching Frequency

 EN and Power-Good for Power Sequencing

 Cycle-by-Cycle Over-Current Protection

 Auto Discharge at Power Off

 Short-Circuit Protect with Hiccup Mode

 Stable with Low-ESR Output Ceramic

Capacitors

 Available in QFN-10 (2mmx3mm) Package

APPLICATIONS

 Low Voltage I/O System Power

 Handheld/Battery-powered Systems

 Wireless/Networking Cards

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.

EV2143H-D-00A EVALUATION BOARD

Board Number

MPS IC Number

EV2143H-D-00A

MP2143HGD

0

10

20

30

40

50

60

70

80

90

100

0

0.5

1

1.5

2

2.5

3

3.5