DATA SHEET www.onsemi.com Buck Switching Regulator - Automotive, Programmable, 1 Spread Spectrum, DFN12 Adjustable RSTB CASE 506CE MARKING DIAGRAM NCV890204 V8902 2.0 A, 2 MHz 04G ALYW The NCV890204 is a fixedfrequency, monolithic, Buck switching regulator intended for Automotive, batteryconnected applications A = Assembly Location that must operate with up to a 36 V input supply. The regulator is L = Wafer Lot suitable for systems with low noise and small form factor Y = Year requirements often encountered in automotive driver information W = Work Week systems. The NCV890204 is capable of converting the typical 4.5 V to = PbFree Device 18 V automotive input voltage range to outputs as low as 3.3 V at (Note: Microdot may be in either location) aconstant switching frequency above the sensitive AM band, eliminating the need for costly filters and EMI countermeasures. The NCV890204 also provides several protection features expected in ORDERING INFORMATION See detailed ordering and shipping information on page 18 of Automotive power supply systems such as current limit, short circuit this data sheet. protection, and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple even when using small inductor values and an allceramic output filter capacitor forming a spaceefficient switching regulator solution. Features Internal NChannel Power Switch Low V Operation Down to 4.5 V IN High V Operation to 36 V IN Withstands Load Dump to 40 V Thermal Shutdown (TSD) 2 MHz Freerunning Switching Frequency Low Shutdown Current Adjustable Spread Spectrum Wettable Flanks DFN (pin edge plating) Reset with Adjustable Delay NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Logic level Enable Input Can be Directly Tied to Requirements AECQ100 Qualified and PPAP Capable Battery These Devices are PbFree and are RoHS Compliant 2.2 A (min) CyclebyCycle Peak Current Limit Applications Short Circuit Protection enhanced by Frequency Audio Foldback 1.75% Output Voltage Tolerance Infotainment Output Voltage Adjustable Down to 0.8 V Safety Vision Systems 1.4 Millisecond Internal SoftStart Instrumentation Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: November, 2021 Rev. 5 NCV890204/DNCV890204 CDRV DBST NCV890204 L1 VOUT VIN VIN SW 1 12 CBST CIN DFW COUT DRV BST 2 11 RSTB RFB1 3 RSTB DELAY 10 CDELAY GND FB 4 9 EN 5 EN COMP 8 RFB2 RCOMP 6 RDEPTH RMOD 7 CCOMP RMOD RDEPTH Figure 1. Typical Application CDRV DBST VIN SW VIN L1 VOUT CIN DFW 3 V COUT CBST Reg DRV Oscillator BST PWM VOUT LOGIC ON OFF DELAY RSTB RSTB CDELAY 2 A + + + Reset Delay FB GND + TSD SoftStart RESET COMP VOLTAGES MONITORS RCOMP EN Enable + CCOMP RDEPTH RMOD Spread Spectrum RMOD RDEPTH Figure 2. NCV890204 Block Diagram www.onsemi.com 2 + +