NCV890101

NCV890101 Switching Regulator Automotive, Buck 1.2 A, 2 MHz The NCV890101 is a fixed−frequency, monolithic, Buck switching regulator intended for Automotive, battery−connected applications that must operate with up to a 36 V input supply. The regulator is www.onsemi.com suitable for systems with low noise and small form factor requirements often encountered in automotive driver information MARKING DIAGRAM systems. The NCV890101 is capable of converting the typical 4.5 V to 18 V automotive input voltage range to outputs as low as 3.3 V at a constant switching frequency above the sensitive AM band, eliminating the need for costly filters and EMI countermeasures. Two pins are provided to synchronize switching to a clock, or to another NCV890101. The NCV890101 also provides several protection features expected in Automotive power supply systems such as current limit, short circuit protection, and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple even when using small inductor values and an all−ceramic output filter DFN10 CASE 485C V8901 01 ALYWG G A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Device (Note: Microdot may be in either location) capacitor − forming a space−efficient switching regulator solution. Features Internal N−Channel Power Switch Low VIN Operation Down to 4.5 V High VIN Operation to 36 V Withstands Load Dump to 40 V ORDERING INFORMATION See detailed ordering ...