NCV890430 Series

Automotive 0.6 A 2 MHz 100% Duty Cycle Step-Down Synchronous Regulator

Catalog

Automotive 0.6 A 2 MHz 100% Duty Cycle Step-Down Synchronous Regulator

Part	Voltage - Input (Min) [Min]	Qualification	Topology	Package / Case	Current - Output	Function	Mounting Type	Grade	Output Type	Voltage - Output (Min/Fixed)	Supplier Device Package	Synchronous Rectifier	Voltage - Input (Max) [Max] [custom]	Frequency - Switching	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Output Configuration
ON Semiconductor NCV890430MW25TXG	3.5 V	AEC-Q100	Buck	8-VDFN Exposed Pad	600 mA	Step-Down	Surface Mount	Automotive	PWM Signal	2.5 V	8-DFN (3x3)		37 V	2 MHz	150 °C	-40 °C	1	Positive
ON Semiconductor NCV890430MW50TXG	3.5 V	AEC-Q100	Buck	8-VDFN Exposed Pad	600 mA	Step-Down	Surface Mount	Automotive	PWM Signal	5 V	8-DFN (3x3)		37 V	2 MHz	150 °C	-40 °C	1	Positive

Catalog

Automotive 0.6 A 2 MHz 100% Duty Cycle Step-Down Synchronous Regulator

Key Features

• Internal 550 mΩ P Channel and 300 mΩ N-Channel Power Switches

• Capable of 100% Duty Cycle Operation

• VIN operating range of 3.5 V to 37 V

• Withstands Load Dump to 45 V

• 2 MHz Free-Running Switching Frequency

• Shutdown Current Less than 10 µA

• High Voltage Enable Pin

• Synchonization Input Pin

• Maximum DC Output Current of at least 0.6A

• Fixed Output Voltage (5.0 V, 3.3 V and 2.5 V Versions)

• ± 2% Output Voltage Accuracy

• DFN Package with Wettable Flanks (Pin Edge Plating Per JEDEC MO220)

• NCV Prefix for Automotive Requiring Site and Control Changes

• Pb-Free

Description

The NCV890430 is a fixed-frequency Synchronous Buck regulatorintended for Automotive, battery-connected applications that operatewith up to a 45 V input supply. It is suitable for automotive systemsrequiring low noise and low shutdown currents that also need tooperate 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 alow voltage (such as a micro-controller output) or high voltage (suchas the battery input), and a synchronization input.The NCV890430 also provides several protection features expectedin automotive power supply systems such as current limit, short circuitprotection, and thermal shutdown. In addition, the high switchingfrequency produces low output voltage ripple even when using smallinductor values and all-ceramic input output filter capacitors −forming a space-efficient switching regulator solution.