Product Overview NCV890100: Automotive Switching Regulator, Buck, 1.2 A, 2 MHz For complete documentation, see the data sheet Product Description The NCV890100 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications that must operate with up to a 36V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890100 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. The NCV890100 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 capacitor - forming a space-efficient switching regulator solution. Features Benefits • 2-MHz Free-Running Switching Frequency • • • • • • • • • • Enables the use of small size, low cost inductor and EMC filter Internal N-Channel Power Switch Low VIN Operation Down to 4.5 V High VIN Operation Up to 36 V Withstands Load Dumps to 40 V Logic level Enable Input Can be Directly Tied to Battery 1.4 A (min) Cycle-by-Cycle Peak Current Limit Short-Circuit Protection enhanced by Frequency Foldback ±1.75% Output Voltage Tolerance Output Voltage Adjustable Down to 0.8 V For more features, see the data sheet Applications • • • • End Products Audio Infotainment Safety - Vision Systems Dashboards • Automotive Part Electrical Specifications Product Compliance Status Topology NCV890100MWTXG AEC Qualified Active Active Control Mode VCC Min (V) VCC Max (V) VO Typ (V) IO Typ (A) StepDown 4.5 40 Adjustable StepDown 4.5 40 Adjustable Efficiency (%) fSW Typ (kHz) Package Type 1.2 2250 DFN-8 1.2 2250 SOIC-8 EP PPAP Capable Pb-free NCV890100PDR2G AEC Qualified PPAP Capable Pb-free Application Diagram For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016