NCV890130 Series

Automotive Switching Regulator, 1.2 A, 2 MHz, 45 V Load Dump

Catalog

Automotive Switching Regulator, 1.2 A, 2 MHz, 45 V Load Dump

Part	Function	Grade	Frequency - Switching	Topology	Supplier Device Package	Voltage - Output (Max) [Max]	Package / Case	Package / Case	Package / Case	Voltage - Output (Min/Fixed)	Mounting Type	Voltage - Input (Min) [Min]	Output Type	Output Configuration	Number of Outputs	Voltage - Input (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Synchronous Rectifier	Qualification
ON Semiconductor NCV890130PDR2G	Step-Down	Automotive	2 MHz	Buck	8-SOIC-EP	34 V	0.154 in	8-SOIC	3.9 mm	0.8 V	Surface Mount	4.5 V	Adjustable	Positive	1	36 V	150 °C	-40 °C	1.2 A		AEC-Q100

Catalog

Automotive Switching Regulator, 1.2 A, 2 MHz, 45 V Load Dump

Key Features

• 2 MHz Free-running Switching Frequency

• Internal N-Channel Power Switch

• Low VINOperation Down to 4.5 V

• High VINOperation to 32 V

• Withstands Load Dump to 45 V

• Logic level Enable Input Can be Directly Tied to Battery

• 1.4 A (min) Cycle-by-Cycle Peak Current Limit

• Short-Circuit Protection enhanced by Frequency Foldback

• ±1.75% Output Voltage Tolerance

• Output Voltage Adjustable Down to 0.8 V

• 1.4 ms Internal Soft-Start

• Thermal Shutdown (TSD)

Description

The NCV890130 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications that must operate with up to a 32 V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890130 is capable of converting the typical 4.5 V to 18 V automotive input voltage range to outputs as low as 3.3 V at a constant switching frequency above the sensitive AM band, eliminating the need for costly filters and EMI countermeasures. The NCV890130 also provides several protection features expected 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 inductor values and an all-ceramic output filter capacitor - forming a space-efficient switching regulator solution.