MP2480 5V36V Input, 3A High Power LED Driver The Future of Analog IC Technology DESCRIPTION FEATURES The MP2480 is step-down switching regulator Wide 5V to 36V Operating Input Range that delivers a constant current of up to 3A to Up to 95% Efficiency high-power LEDs. It integrates a high-side, Hysteretic Control with No Compensation high-voltage power MOSFET with a current limit No Output Capacitor Required of 4.3A. The wide 5V to 36V input range 3% LED Current Accuracy accommodates a variety of step-down Up to 2MHz Switching Frequency applications, making it ideal for general lighting Up to 20kHz Dimming Frequency and LCD backlighting applications. Hysteretic 200mV Reference Voltage current-mode control helps provide for a very Short-Circuit Protection with Integrated fast response, which makes the 20kHz dimming High-Side MOSFET frequency possible. MPSs proprietary feedback Thermal Shut Down control minimizes the number of external Available in SOIC8-EP components while delivering an LED current with a typical accuracy of 3%. APPLICATIONS The switching frequency goes up to 2MHz, thus High Power LED Driver permitting smaller components. Thermal shut General Lighting and LCD Backlighting down, and short circuit protection provide Constant Current Source reliable fault-tolerant operation. A 160A All MPS parts are lead-free and adhere to the RoHS directive. For MPS green quiescent current allows for use in battery- status, please visit MPS website under Quality Assurance. MPS and The powered applications. Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. The MP2480 is available in SOIC8-EP with an exposed pad on the bottom. TYPICAL APPLICATION MP2480 Rev. 1.01 www.MonolithicPower.com 1 1/25/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2013 MPS. All Rights Reserved. MP2480 36V INPUT, 3A HIGH POWER LED DRIVER ORDERING INFORMATION Part Number Package Top Marking Free Air Temperature (T ) A MP2480DN* SOIC8-EP MP2480 -40 C to +85 C * For Tape & Reel, add suffix Z (e.g. MP2480DNZ) For RoHS compliant packaging, add suffix LF (e.g. MP2480DNLFZ) PACKAGE REFERENCE TOP VIEW SW 1 8 BST DIM 2 7 VIN EN 3 6 NC GND 4 5 FB EXPOSED PAD ON BOTTOM CONNECT TO GND SOIC8-EP (4) (1) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC Supply Voltage (V )......................-0.3V to +40V SOIC8-EP ...............................50 ...... 10... C/W IN Switch Voltage (V ).......... -0.5V to (V + 0.5V) SW IN Notes: BST to SW ......................................-0.3V to +6V 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the All Other Pins..................................-0.3V to +6V maximum junction temperature T(MAX), the junction-to- J Junction Temperature...............................150C ambient thermal resistance , and the ambient temperature JA (2) Continuous Power Dissipation (T = 25C) T . The maximum allowable continuous power dissipation at A A any ambient temperature is calculated by P (MAX)=(T (MAX)- D J SOIC8-EP ................................................. 2.5W T )/ . Exceeding the maximum allowable power dissipation A JA Lead Temperature ....................................260C will cause excessive die temperature, and the regulator will go Storage Temperature............... -65C to +150C into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. (3) 3) The device is not guaranteed to function outside of its Recommended Operating Conditions operating conditions. Supply Voltage V ..............................5V to 36V IN 4) Measured on JESD51-7 4-layer board. EN and DIM Voltages ...........................0V to 5V Maximum Junction Temp. (T )..................125C J MP2480 Rev. 1.01 www.MonolithicPower.com 2 1/25/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2013 MPS. All Rights Reserved.