EV3307-J-00A
Non-Synchronized White LED Driver
Evaluation Board
EV3307-J-00A Rev.1.0 www.MonolithicPower.com 1
7/13/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
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The Future of Analog IC Technology
DESCRIPTION
The MP3307 is a non-synchronous WLED step-
up LED driver with 2.7V-to-5.5V input range. It
uses peak-current mode to regulate the LED
current sensed through an external, low-side
resistor.
The MP3307 features up to 2.2MHz
programmable switching frequency which is
easy to avoid the noise interference and easy to
optimize efficiency and reduce the output filter
components size. To extend the dimming range,
it supports both analog and PWM dimming
mode with separate input.
MP3307 has LED open protection, output over-
voltage protection, cycle-by-cycle current limit
protection, and thermal shutdown protection.
MP3307 is available in TSOT23-8 package
which is good to use in Video displays.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input Voltage V
IN
2.7 – 5.5 V
Output Voltage VLED <24 V
LED String 1 string
LED Current I
LED
40 mA
FEATURES
• 2.7V-to-5.5V Input Voltage
• Analog Dimming with >20kHz input signal
• Direct PWM dimming mode with 100Hz to
2kHz input signal
• Up to 2.2MHz Programmable Switching
Frequency
• Low 200mV Feedback Voltage with ±1%
Accuracy at Room Temperature
• 24V Open-Load Protection Threshold
• UVLO, Thermal Shutdown
• Cycle by Cycle Over Current Protection
• Available in a TSOT23-8 Package
APPLICATIONS
• Video Displays
• In-Car LCD Infotainment
• Tablets
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Monolithic Power Systems, Inc.