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MP3425DL Datasheet(PDF) 1 Page - Monolithic Power Systems |
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MP3425DL Datasheet(HTML) 1 Page - Monolithic Power Systems |
1 / 13 page MP3425 3A, 55V Boost Converter with Programmable Switching Frequency and UVLO MP3425 Rev.1.02 www.MonolithicPower.com 1 6/28/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2013 MPS. All Rights Reserved. The Future of Analog IC Technology DESCRIPTION The MP3425 is a current mode step-up converter with a 3.5A, 90mΩ internal switch to provide a highly efficient regulator with fast response. The MP3425 features a programmed frequency up to 2MHz allowing for easy filtering and low noise. An external compensation pin gives the user flexibility in setting loop dynamics, and operates with small, low-ESR ceramic output capacitors. Soft-start results in small inrush current and can be programmed with an external capacitor. The MP3425 operates from an input voltage as low as 3.1V and can generate 48V at up to 350mA from a 12V supply. The MP3425 includes under-voltage lockout, current limiting and thermal overload protection to prevent damage in the event of an output overload. The MP3425 is available in a low profile 14-pin 3x4mm QFN package with exposed pad. FEATURES • 3.5A, 90mΩ, 55V Power MOSFET • Uses Tiny Capacitors and Inductors • Wide input range: 3.1V to 22V • Output Voltage as High as 55V • Programmable Fsw: 300kHz – 2 MHz • Programmable UVLO, Soft-Start, UVLO Hysteresis • Micropower shutdown <1μA • Thermal Shutdown 160 °C • Available in 14-Pin 3x4mm QFN Package APPLICATIONS • Telecom – Power Supply • Audio - Microphone and Tuner Bias • Automotive 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. TYPICAL APPLICATION VIN EN FSET SS MP3425 COMP FB VDD U1 2 14 12 1 13 7 R1 100k 0805 100V C2 33nF R2 383k R3 10k R6 20k C7 3.3nF D1 50V, 3A R4 51k R5 150k C5 33nF VOUT |
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