MURATA POWER SOLUTIONS 7812SRH-C

The 7812SRH-C is a 1-output high-efficiency Step-down Switching Regulator with LM78xx pinouts. A 260kHz switching frequency provides for efficiencies as high as 95%. Full-load (up to 0.5A) operation from 9, 12, 24 or 36V supplies at ambient temperatures up to +70°C requires no heat sinks, no temperature derating, no forced-air cooling and no external capacitors. 78SR switching regulators provide many significant improvements over their linear counterparts such as lower quiescent current (3 vs. 5mA), higher input voltage (40 vs. 32V) and better output accuracy (±2 vs. ±5%). All these features combine to make 78SR regulators ideal for new or existing LM7805 and LM7812 applications requiring full-load operation at elevated voltages. However, this device will stay in regulation at lower input voltages if it is operated at less than its rated loads.