MP24833-A Datasheet | Monolithic Power Systems

DESCRIPTION The MP24833-A is a 55V, 3A, white LED driver suitable for step-down, inverting step-up/stepdown, and step-up applications. The MP24833A achieves 3A of output current with excellent load and line regulation over a wide input supply range. Current mode operation provides a fast transient response and eases loop stabilization. Full protection features include thermal shutdown, cycle-by-cycle peak current limiting, open-string protection, and output short-circuit protection (SCP). The MP24833-A incorporates both DC and PWM dimming into a single control pin. The separate input reference ground pin allows for direct enable and/or dimming control for a positive-to-negative power conversion. The MP24833-A requires a minimal number of readily available, standard, external ponents and is available in a SOIC-8 EP package. 55V, 3A, White LED Driver FEATURES - 3A Maximum Output Current - Unique Step-Up/Step-Down Operation (Buck-Boost Mode) - Wide 4.5V-to-55V Operating Input Range for Step-Down Applications (Buck Mode) - 0.15Ω Internal Power MOSFET Switch - Fixed 210k Hz Switching Frequency - Analog and PWM Dimming - 0.2V Reference Voltage - 6μA Shutdown Mode - No Minimum Number of LEDs Required - Stable with Low ESR Output Ceramic Capacitors - Cycle-by-Cycle Over-Current Protection (OCP) - Thermal Shutdown Protection - Open-String Protection - Output Short-Circuit Protection (SCP) - Available in a SOIC-8 EP Package APPLICATIONS - General LED Illumination - LCD Backlight Panels - Notebook puters - Automotive Internal Lighting - Portable Multimedia Players - Portable GPS Devices All MPS parts are lead-free, halogen-free, and adhere to the Ro HS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION ROVP1 ROVP2 VIN CIN EN/DIM ON OFF DC or PWM Input 1...