EV3308DL-00A

1.3A Fixed Frequency White LED Driver

Evaluation Board

EV3308DL-00A Rev. 1.0

www.MonolithicPower.com

1

3/20/2012

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

© 2012 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV3308DL-00A is an evaluation board for

the MP3308DL, a monolithic step-up converter

designed for driving arrays of WLEDs from 3V

input or a single-cell lithium-ion battery. The EV

board is optimized for the load of 3 white LEDs

in series, 9 strings panel.

The MP3308 uses fixed frequency,current

mode architecture to regulate the LED current,

which is measured through an external current

sense resistor. Its low 200mV feedback voltage

reduces power loss and improves efficiency.

The MP3308 features dual PWM-dimming input

control and true PWM dimming—this control

allows for a wide luminescent range that makes

the display readable under a variety of ambient

light conditions with minimal PWM dimming

noise.

The MP3308 includes over-voltage protection,

short-circuit protection, under-voltage lockout,

current limiting, and thermal overload protection.

The MP3308 is available in small 3mmx4mm

14-pin QFN package.

FEATURES

 3-6V Input Voltage Range

 Drives up to 27 White LEDs

 Programmable Open Load Shutdown

Threshold

 Up to 88% Efficiency

 Fully Assembled and Tested

APPLICATIONS

 Cell Phones

 Handheld Computers and PDAs

 Digital Still Cameras

 Small LCD Displays

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

3 - 6

V

# of WLEDs

27(3 in series, 9

strings paralleled)

LED Current

180

mA

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

Monolithic Power Systems, Inc.

EV3305DD-00A EVALUATION BOARD

(L x W x H) 2” x 1.8” x 0.4”

5cm x 4.5cm x 1.0cm

Board Number

MPS IC Number

EV3308DL-00A

MP3308DL

50%

55%

60%

65%

70%

75%

80%

85%

90%

95%

3 3.5

4

4.5

5

5.5

6

6.5