Monolithic Power Systems (MPS) MPS4425A Synchronous Step-Down LED Driver is a high-frequency, synchronous, rectified, step-down, switch-mode white LED driver with built-in power MOSFETs. The device offers a very compact 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 a 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 components, and is available in a space-saving QFN-13 (2.5mmx3mm) package.
Features
Wide 4V to 36V Operating Input Range85mΩ/50mΩ Low R
DS(ON) Internal Power MOSFETsHigh-Efficiency Synchronous Mode OperationDefault 2.2MHz Switching FrequencyPWM Dimming (Min 100Hz Dimming Frequency)Forced CCM Mode0.2V Reference VoltageInternal Soft Start
Applications
Automotive LED Lighting
