Description
The NCV890103 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 suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890103 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.

KEY 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
• 2 MHz Free-running Switching Frequency
• Reset with Adjustable Delay
• 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
• 1.4 Millisecond Internal Soft-Start
• Thermal Shutdown (TSD)
• Low Shutdown Current
• NCV Prefix for Automotive and Other Applications
   Requiring Unique Site and Control Change
   Requirements; AEC−Q100 Qualified and PPAP
   Capable
• Wettable Flanks DFN (Pin Edge Plating)
• These Devices are Pb-Free and are RoHS Compliant

Typical Applications
• Audio, Infotainment, Safety – Vision Systems, Instrumentation