MP2480 Datasheet, PDF (1/12 Pages) Monolithic Power Systems – 5V, 36V Input, 3A High Power LED Driver

The Future of Analog IC Technology
DESCRIPTION
The MP2480 is step-down switching regulator
that delivers a constant current of up to 3A to
high-power LEDs. It integrates a high-side,
high-voltage power MOSFET with a current limit
of 4.3A. The wide 5V to 36V input range
accommodates a variety of step-down
applications, making it ideal for general lighting
and LCD backlighting applications. Hysteretic
current-mode control helps provide for a very
fast response, which makes the 20kHz dimming
frequency possible. MPS’s proprietary feedback
control minimizes the number of external
components while delivering an LED current
with a typical accuracy of ±3%.
The switching frequency goes up to 2MHz, thus
permitting smaller components. Thermal shut
down, and short circuit protection provide
reliable fault-tolerant operation. A 160µA
quiescent current allows for use in battery-
powered applications.
The MP2480 is available in SOIC8-EP with an
exposed pad on the bottom.
TYPICAL APPLICATION
MP2480
5V―36V Input, 3A High
Power LED Driver
FEATURES
• Wide 5V to 36V Operating Input Range
• Up to 95% Efficiency
• Hysteretic Control with No Compensation
• No Output Capacitor Required
• ±3% LED Current Accuracy
• Up to 2MHz Switching Frequency
• Up to 20kHz Dimming Frequency
• 200mV Reference Voltage
• Short-Circuit Protection with Integrated
High-Side MOSFET
• Thermal Shut Down
• Available in SOIC8-EP
APPLICATIONS
• High Power LED Driver
• General Lighting and LCD Backlighting
• Constant Current Source
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance. “MPS” and “The
Future of Analog IC Technology” are Registered Trademarks of Monolithic
Power Systems, Inc.
MP2480 Rev. 1.01
www.MonolithicPower.com
1
1/25/2013
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