EV0020 (MP1591DN)

2A, 32V, 330KHz

Step-Down Converter

EVALUATION BOARD

EV0020 (MP1591DN) Rev. 1.5

www.MonolithicPower.com

1

12/21/2005

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© 2005 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV0020 is the evaluation board for the

MP1591; a high voltage step-down converter

ideal for automotive power adapter battery

chargers. Its wide 6.5V to 32V input voltage

range

covers

the

automotive

battery’s

requirements. It achieves 2A continuous output

for quick charge capability.

Current mode operation provides fast transient

response and eases loop stabilization. Fault

protection

includes

cycle-by-cycle

current

limiting and thermal shutdown. In shutdown

mode, the converter draws only 20µA of supply

current.

The MP1591 requires a minimum number of

readily

available

external

components

to

complete a 2A step-down DC to DC converter

solution.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

6.5 to 32

V

Output Voltage

5

V

Output Current

2

A

FEATURES

• Wide 6.5V to 32V Input Operating Range

• 34V Absolute Maximum Input

• 2A Output Current

• Ceramic Input and Output Capacitors

• Up to 95% Efficiency

• 20µA Shutdown Mode

• Fixed 330KHz Frequency

• Thermal Shutdown

• Cycle-by-Cycle Over Current Protection

• Output Adjustable From 1.23V to 21V

• Under Voltage Lockout

APPLICATIONS

• Automotive Power Adapters

• PDA and Cellular Phone Battery Chargers

• Distributed Power Systems

• Automotive Aftermarket Electronics

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

Monolithic Power Systems, Inc.

EV0020 EVALUATION BOARD

(L x W x H) 2.1” x 1.4” x 0.5” (5.3cm x 3.5cm x 1.1cm)

Board Number

MPS IC Number

EV0020

MP1591DN