DATA SHEET www.onsemi.com Synchronous Regulator - Automotive, StepDown, 1 100% Duty Cycle DFN8, 3x3, 0.65P CASE 506BY 0.6 A, 2 MHz MARKING DIAGRAM NCV890430 1 V8904 The NCV890430 is a fixed-frequency Synchronous Buck regulator 30xxG intended for Automotive, battery-connected applications that operate ALYW with up to a 45 V input supply. It is suitable for automotive systems requiring low noise and low shutdown currents that also need to V890430xxG = Specific Device Code operate at low input voltage close to the output voltage. A reset pin xx = 33 or 50 (with adjustable delay) simplifies interfacing with a microcontroller. A = Assembly Location This part also features an enable input that can either be connected to a L = Wafer Lot Y = Year low voltage (such as a micro-controller output) or high voltage (such W = Work Week as the battery input), and a synchronization input. = PbFree Package The NCV890430 also provides several protection features expected (Note: Microdot may be in either location) 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 PIN CONNECTIONS inductor values and all-ceramic input output filter capacitors forming a space-efficient switching regulator solution. VIN18 SW Features RSTB27 PGND Internal 550 m P-channel and 300 m N-channel Power Switches Capable of 100% Duty Cycle Operation GND36 SYNC V Operating Range 3.5 V to 37 V IN Withstands Load Dump to 45 V EN45 VOUT 2 MHz Free-running Switching Frequency (DFN8 Top View) Low Shutdown Current < 10 A High Voltage Enable Pin ORDERING INFORMATION Synchronization Input Pin See detailed ordering, marking and shipping information on page 9 of this data sheet. Maximum DC Output Current of at Least 0.6 A Fixed Output Voltage (5 V, 3.3 V Versions) 2% Output Voltage Accuracy DFN Package with Wettable Flanks (Pin Edge Plating per JEDEC MO220) NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements AECQ100 Qualified and PPAP Capable These are PbFree Devices Typical Applications Automotive Infotainment and Instrumentation Automotive Body Applications Linear Regulator Replacement Rear View Camera Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: November, 2021 Rev. 2 NCV890430/DNCV890430 Figure 1. Typical Application Schematic Figure 2. Simplified Block Diagram www.onsemi.com 2