MP3301 Datasheet, PDF (1/11 Pages) Monolithic Power Systems – 1.3MHz, 700mA, Fixed-Frequency Step-Up Driver for up to 10 White LEDS

MP3301
1.3MHz, 700mA, Fixed-Frequency
Step-Up Driver for up to 10 White LEDS
DESCRIPTION
The MP3301 is a step-up converter designed to
drive WLEDS arrays from a single-cell, lithium-ion
battery. The MP3301 uses a current-mode, fixed-
frequency 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 MP3301 turns off in the presence
of an open-circuit over-voltage condition.
The MP3301 includes under-voltage lockout,
current limiting, and thermal-overload protection
to prevent damage in the event of an output
overload.
The MP3301 is available in a small 5-pin TSOT23
package.
FEATURES
 Internal Power MOSFET
 Drives up to 10 White LEDs in Series
 Up to 89% Efficiency
 PWM and Analog Dimming
 1.3MHz Fixed Switching Frequency
 Low 200mV Feedback Voltage
 Internal 700mA Current Limit
 Open-Load Shutdown
 UVLO, Thermal Shutdown
 Available in TSOT23-5 Packages
APPLICATIONS
 Smart Phones
 Digital Still Cameras
 Small LCDs
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance. “Monolithic Power
Systems”, “MPS”, and “The Future of Analog IC Technology” are Registered
Trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VIN
Cin
En/Dim
L
D
Cout
IN
SW
EN _MP3301
FB
GND
LED
Rsense
MP3301 Rev. 1.01
www.MonolithicPower.com
1
10/28/2013
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