MP3309 2.7V-5.5V Input, 35V Output White LED Driver The Future of Analog IC Technology FEATURES DESCRIPTION 2.7V-to-5.5V Input Voltage The MP3309 is a WLED step-up converter for Analog and PWM Dimming 2.7V-to-5.5V input that uses peak-current mode to regulate the LED current sensed through an Programmable Switching Frequency external, low-side resistor. The 200mV Low 200mV Feedback Voltage with 1% feedback voltage and synchronous rectification Internal Soft Start reduces power loss and reduces PCB space UVLO, Thermal Shutdown, OCP requirements. Available in a 1.4mm 1.8mm QFN-10 package The MP3309 features a programmable switching frequency to optimize efficiency. It APPLICATIONS supports both analog and PWM dimming. Feature Phones and Smart Phones In addition, the MP3309 has LED open Tablets protection, cycle-by-cycle current limit <10inchVideo Displays protection, Under voltage protection and All MPS parts are lead-free, halogen free, and adhere to the RoHS thermal shutdown protection . 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. TYPICAL APPLICATION Typical Application Circuit MP3309 Rev. 1.02 www.MonolithicPower.com 1 5/21/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved. MP3309 2.7V-5.5V INPUT, 35V OUTPUT, f -PROGRAMMABLE, WHITE LED DRIVER s ORDERING INFORMATION Part Number Package Top Marking MP3309GQG* QFN-10 (1.4mm1.8mm) BM * For Tape & Reel, add suffix Z (e.g. MP3309GQGZ) PACKAGE REFERENCE TOP VIEW QFN-10 (1.4mm1.8mm) (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC V ................................................... -0.3V to +6V QFN-10 (1.4mm1.8mm) ..... 140 ...... 30 C/W IN V , V ..-1V to +40V SW OUT Notes: V ......................................... -0.3V to V +6V BST SW 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 Lead Temperature .................................... 260C T . The maximum allowable continuous power dissipation at A (2) any ambient temperature is calculated by P (MAX) = (T D J Continuous Power Dissipation (T = 25C) A (MAX)-T )/ . Exceeding the maximum allowable power A JA dissipation will cause excessive die temperature, and the ..........................................................0.892W regulator will go into thermal shutdown. Internal thermal (3) shutdown circuitry protects the device from permanent Recommended Operating Conditions damage. Supply Voltage V .......................... 2.7V to 5.5V IN 3) The device is not guaranteed to function outside of its operating conditions. Operating Junction Temp. (T ). -40C to +125C J 4) Measured on JESD51-7, 4-layer PCB. MP3309 Rev. 1.02 www.MonolithicPower.com 2 5/21/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved.