MPQ4425AGQB Datasheet | Monolithic Power Systems

DESCRIPTION The MPQ4425A is a high-frequency, synchronous, rectified, step-down, switch-mode white LED driver with built-in power MOSFETs. It offers a very pact solution to achieve 1.5A of continuous output current with excellent load and line regulation over a wide input supply range. The MPQ4425A has synchronous mode operation to get high efficiency. Current mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection (OCP) and thermal shutdown (TSD). The MPQ4425A requires a minimal number of readily available, standard external ponents, and is available in a space-saving QFN-13 (2.5mmx3mm) package. FEATURES - Wide 4V to 36V Operating Input Range - 85mΩ/50mΩ Low RDS(ON) Internal Power MOSFETs - High-Efficiency Synchronous Mode Operation - Default 2.2MHz Switching Frequency - PWM Dimming (Min 100Hz Dimming Frequency) - Forced CCM Mode - 0.2V Reference Voltage - Internal Soft Start - Fault Indication for LED Short, Open, and Thermal Shutdown - Over-Current Protection (OCP) with Valley Current Detection - Thermal Shutdown - CISPR25 Class 5 pliant - Available in a QFN-13 (2.5mmx3mm) Package - Available in a Wettable Flank Package - Available in AEC-Q100 Grade-1 APPLICATIONS - Automotive LED Lighting All MPS parts are lead-free, halogen free, and adhere to the Ro HS directive. For MPS green status, visit the MPS website under Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are registered trademarks of Monolithic Power Systems, Inc. or its subsidiaries. TYPICAL APPLICATION EN/DIM /FAULT MPQ4425A EN/DIM VCC FB /FAULT PGND AGND LED+ LED- MPQ4425A Rev. 1.0 .Monolithic...