EV4473-L-00A

High-Efficiency, Fast-Transient, 3.5A, 36V

Step-Down Converter Evaluation Board

EV4473-L-00A Rev. 1.0

www.MonolithicPower.com

1

3/23/2015

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

© 2015 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV4473-L-00A is an evaluation board for

the MPQ4470, a high-efficiency step-down

regulator with integrated power MOSFETs.

MPQ4470 offers a very compact solution to

achieve a 5A, continuous-output current over a

wide input-supply range with excellent load and

line regulation. It also provides fast transient

response and good stability for wide input-

supply and load range.

The EV4473-L-00A is a fully assembled and

tested evaluation board. It generates a +3.3V

output voltage at load current up to 5A from an

4.5V to 36V input range. Switching frequency is

set at 500kHz.

This evaluation board is available for both

EV4473 and EVQ4473

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

4.5 – 36

V

Output Voltage

3.3

V

Output Current

3.5

A

FEATURES

• Wide 4.5V-to-36V Operating Input Range

• Guarantee 5A, Continuous Output Current

• Internal 40mΩ High-Side, 20mΩ Low-Side

Power MOSFETs

• Proprietary

Switching-Loss-Reduction

Technology

• 1% Reference Voltage

• Programmable Soft-Start Time

• Low Drop-out Mode

• SCP, OCP, OVP, UVP and Thermal

Shutdown

APPLICATIONS

•

Notebook Systems and I/O Power

•

Automotive Systems

•

Networking Systems

•

Industrial Supplies

•

Optical Communications Systems

•

Distributed Power and POL Systems

All MPS parts are lead-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.

EV4473-L-00A EVALUATION BOARD

(L x W x H) 2.5” x 2.5” x 0.4”

(6.4cm x 6.4cm x 1.0cm)

Board Number

MPS IC Number

EV4473-L-00A

MPQ4473GL

0

10

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0.01

0.1

1

10