DATA SHEET www.onsemi.com Buck Switching Regulator - Automotive, Programmable 1 DFN12 Spread Spectrum, CASE 506CE Adjustable RSTB MARKING DIAGRAM 1.2 A, 2 MHz NCV890104 V8901 04G The NCV890104 is a fixedfrequency, monolithic, Buck switching ALYW regulator intended for Automotive, batteryconnected 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 A = Assembly Location requirements often encountered in automotive driver information L = Wafer Lot systems. The NCV890104 is capable of converting the typical 4.5 V to Y = Year 18 V automotive input voltage range to outputs as low as 3.3 V at W = Work Week aconstant switching frequency above the sensitive AM band, = PbFree Device eliminating the need for costly filters and EMI countermeasures. (Note: Microdot may be in either location) A Reset pin signals when the output is in regulation, and a pin is provided to adjust the delay before the RSTB signal goes high. The NCV890104 also provides several protection features expected in Automotive power supply systems such as current limit, short circuit ORDERING INFORMATION protection, and thermal shutdown. In addition, the high switching See detailed ordering and shipping information in the package dimensions section on page 18 of this data sheet. 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 1.4 Millisecond Internal SoftStart Low V Operation Down to 4.5 V Thermal Shutdown (TSD) IN High V Operation to 36 V Low Shutdown Current IN Withstands Load Dump to 40 V NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change 2 MHz Freerunning Switching Frequency Requirements AECQ100 Qualified and PPAP Adjustable Spread Spectrum Capable Reset with Adjustable Delay Wettable Flanks DFN (pin edge plating) Logic level Enable Input Can be Directly Tied to These Devices are PbFree and RoHS Compliant Battery 1.4 A (min) CyclebyCycle Peak Current Limit Applications Short Circuit Protection enhanced by Frequency Audio Foldback Infotainment 1.75% Output Voltage Tolerance Safety Vision Systems Output Voltage Adjustable Down to 0.8 V Instrumentation Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: November, 2021 Rev. 5 NCV890104/DNCV890104 CDRV DBST NCV890104 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 VIN SW L1 VOUT CIN 3 V DFW CBST Reg COUT Oscillator DRV BST PWM VOUT LOGIC ON OFF DELAY RSTB RSTB 1.2 A CDELAY + + + Reset Delay FB GND + TSD SoftStart RESET COMP VOLTAGES MONITORS RCOMP EN Enable + CCOMP RDEPTH RMOD Spread Spectrum RMOD RDEPTH Figure 2. NCV890104 Block Diagram www.onsemi.com 2 + +