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EV0060

1.2A, 6V, 800KHz Synchronous Rectified Step-Down Converter

Monolithic Power Systems 

The Future of Analog IC Technology

EV0060 (MP1567)

1.2A, 6V, 800KHz Synchronous Rectified

Step-Down Converter

EVALUATION BOARD

GENERAL DESCRIPTION

The EV0060 is an evaluation board for the

MP1567, a 1.2A, 800KHz DC to DC converter

designed for low voltage applications requiring

high efficiency. Capable of providing output

voltages as low as 0.9V from a 3.3V supply

voltage, the MP1567 eliminates the need for a

5V rail, providing over 90% efficiency via

synchronous rectification and eliminating heat

issues in confined spaces. Soft-start operation

protects internal circuitry from hard turn on

issues. Switching at 800KHz reduces the size

of external components and thereby reduces

board space.

The MP1567 includes cycle-by-cycle current

limiting and under voltage lockout. Internal

power switches combined with the tiny 10-pin

QFN package provide a solution requiring a

minimum of space.

ELECTRICAL SPECIFICATIONS

Parameter

Input Voltage

Output Voltage

Output Current

Symbol

VIN

VOUT

IOUT

Value

2.6 to 6

1.8

1.2

Units

V

V

A

FEATURES

• 1.2A Output Current

• Synchronous Rectified

• Internal 180mΩ and 220mΩ Power Switches

• VIN Range of 2.6V to 6V

• Over 90% Efficiency

• Zero Current Shutdown Mode

• Under Voltage Lockout Protection

• Soft-Start Operation

• Thermal Shutdown

• Internal Current Limit (Source & Sink)

• Tiny 10-Pin QFN Package

APPLICATIONS

• SOHO Routers, PCMCIA Cards, Mini PCI

• Handheld Computers, PDAs

• Cell Phones

• Digital Video Cameras

• Small LCD Displays

“MPS” and “The Future of Analog IC Technology”, are Registered Trademarks

of Monolithic Power Systems, Inc.

EV0060 EVALUATION BOARD

Dimensions (2.5”X x 2.0”Y x 0.4”Z)

Board Number

MPS IC Number

EV0060

MP1567DQ

Efficiency vs

Load Current

100

90 VIN=3.3V

80

70

60

VIN=4V

50

40

VIN=5V

30

20

10

VOUT=1.8V

0

10

100

1000

LOAD CURRENT (mA)

MP1567_EC01

EV0060 Rev. 1.2

www.MonolithicPower.com

1

4/22/2005

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2005 MPS. All Rights Reserved.

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