Onsemi NCV890430 | Demoboard NCV890430MW33GEVB

Description

The NCV890430 is a fixed-frequency Synchronous Buck regulator intended for Automotive, battery-connectedapplications that operate with up to a 45 V input supply. It is suitable for automotive systems requiring low noise andlow shutdown currents that also need to operate at low input voltage close to the output voltage. A reset pin (with adjustable delay) simplifies interfacing with a microcontroller.This part also features an enable input that can either be connected to a low voltage (such as a micro-controller output)or high voltage (such as the battery input), and a synchronization input. The NCV890430 alsoprovides several protection features expected in automotivepower supply systems such as current limit, short circuitprotection, and thermal shutdown. In addition, the highswitching frequency produces low output voltage rippleeven when using small inductor values and all−ceramicinput and output filter capacitors − forming a space−efficientswitching regulator solution.

Features

Remark: BOM is added with user-guide.

Internal 550 m P Channel and 300 m N−ChannelPower Switches

• Capable of 100% Duty Cycle Operation
• VIN Operating Range 3.5 V to 37 V, Withstands LoadDump to 45 V
• 2 MHz Free−running Switching Frequency
• Shutdown Current Less than 10 A
• High Voltage Enable Pin
• Synchronization Input Pin
• Maximum DC Output Current of at Least 0.6 A
• Fixed Output Voltages of 2.5 V, 3.3 V or 5.0 V with±2% Accuracy

Typical applications

• Linear Regulator Replacement
• Automotive Infotainment and Instrumentation, Automotive Body Applications
• Rear View Camera

More information

• Datasheet
• IC product information