MIC28303

MIC28303 50V, 3A Power Module Features Easy to Use - Stable with Low-Equivalent Series Resistance (ESR) Ceramic Output Capacitor - No Inductor and No Compensation to Choose 4.5V to 50V Input Voltage Single-Supply Operation Power Good (PG) Output Low Radiated Emission (EMI) per EN55022, Class B Adjustable Current Limit Adjustable Output Voltage from 0.9V to 24V (Also Limited by Duty Cycle) 200 kHz to 600 kHz, Programmable Switching Frequency Supports Safe Start-Up into a Prebiased Output –40°C to +125°C Junction Temperature Range Available in 64-pin, 12 mm × 12 mm × 3 mm QFN Package Applications Distributed Power Systems Industrial Medical Telecom Automotive General Description MIC28303 is synchronous step-down regulator module, featuring a unique adaptive ON-time control architecture. The module incorporates a DC/DC controller, power MOSFETs, bootstrap diode, bootstrap capacitor and an inductor in a single package. The MIC28303 operates over an input supply range from 4.5V-50V and can be used to supply up to 3A of output current. The output voltage is adjustable down to 0.8V with an accuracy of ±1%. The device operates with programmable switching frequency from 200 kHz-600 kHz. The MIC28303-1 uses HyperLight Load® architecture for improved efficiency at light loads. The MIC28303-2 uses Hyper Speed Control® for ultra-fast transient response. The MIC28303 offers a full suite of protection features. These include undervoltage lockout, internal s...