EVQ4559DN-00A

1.5A, 55V, 2MHz

Step-Down Converter Evaluation Board

AEC-Q100 Qualified

EVQ4559DN-00A Rev. 1.0

www.MonolithicPower.com

1

12/23/2013

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

© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EVQ4559DN-00A is an evaluation board

for the MPQ4559, a high frequency step-down

regulator with an integrated power MOSFET.

The MPQ4559 integrates a 250mΩ MOSFET

that provides 1.5A load current over a wide

operating input voltage of 4.5V to 55V.

Current mode control provides fast transient

response and eases loop stabilization. An

internal soft-start prevents inrush current at

turn-on.

The EVQ4559DN-00A is a fully assembled and

tested PCB. It generates a +3.3V output voltage

at load current up to 1.5A from an 8V to 55V

input range. Switching frequency is set at

500kHz.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

8 – 55

V

Output Voltage

3.3

V

Output Current

1.5

A

FEATURES

 1.5A Output Current

 Programmable Switching Frequency up to

2MHz

 Wide 8V to 55V Operating Input Range

 Adjustable Output from 0.8V

 Fully Assembled and Tested

APPLICATIONS



High Voltage Power Conversion



Game Machines



Automotive Systems



Industrial Power Systems



Distributed Power Systems



Printer Systems



Battery Powered 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.

EVQ4559DN-00A EVALUATION BOARD

(L x W x H) 2.5” x 2.5” x 0.4”

(6.35cm x 6.35cm x 1.0cm)

Board Number

MPS IC Number

EVQ4559DN-00A

MPQ4559DN

0

0.5

1

1.5

2

40

50

60

70

80

90

100

fs=500kHz