EV0059 datasheet(1/4 Pages) MPS

Part #	EV0059

Description	MP1567: Buck Boost Lumileds White LED Driver

PDF	4 Pages

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Manufacturer	MPS [Monolithic Power Systems]

Direct Link	http://www.monolithicpower.com

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EV0059

MP1567: Buck Boost

Lumileds White LED Driver

EVALUATION BOARD

EV0059 Rev 1.2_09/03/03

Monolithic Power Systems, Inc.

1

Monolithic Power Systems

General Description

The EV0059 evaluation board is designed to

drive Lumileds White LEDs using MPS’

MP1567 step down converter. The EV0059

circuit is a positive to negative voltage converter

with a positive input voltage range of 2.6V to

6V. The generated output voltage can be as low

as -18V with respect to ground.

The MP1567 is a 2A peak, synchronous step

down converter utilizing a constant frequency,

current mode switching topology. The MP1567

has internal 180mΩ and 220mΩ MOSFETs and

has soft start operation. The MP1567 switches

at a high frequency (800KHz) reducing the size

of external components. It includes under

voltage lockout and over-temperature protection

and is available in the tiny 10 pin MSOP and

3mm x 3mm QFN packages.

Ordering Information

Board Number

MPS Part Number

EV0059

MP1567DK

Luxeon Emitter

DS25

Figure 1: EV0059 Evaluation Board

Actual Size: 2.5”X x 2”Y

Absolute Maximum Ratings

Input Supply Voltage VIN

6.5V

Enable Voltage VEN

-0.3V to 6V

Recommended Operating Conditions

Input Supply Voltage VIN

2.6V to 6V

Output Voltage VOUT

0V to –18V

Lumileds Emitter Features

Highest Flux per LED in the world

o Up to 120 lumens

Very long operating life (up to100k hours)

Superior ESD protection

More Energy Efficient than Incandescent

and most Halogen lamps

Available in White, Green, Blue, Royal Blue,

Cyan, Red, Red-Orange, and Amber

MP1567 Features

2A Peak Current Limit

Internal 180m

Ω and 220mΩ Power Switches

> 90% efficiency

Zero Current Shutdown Mode

Under Voltage Lockout Protection

Soft Start Operation

Thermal Shutdown

Internal Current Limit (Source & Sink)

Applications

Handheld Computers, PDAs

Cell phones, Digital and Video Cameras

Small LCD Display

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