Specification	NCV891930MW00R2G

Clock Sync	True
Control Features	Current Limit, Sync, Soft Start, Enable, Frequency Control
Duty Cycle (Max)	60 %
Frequency - Switching	2 MHz
Function	Step-Down
Grade	Automotive
Mounting Type	Wettable Flank, Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	24-VFQFN Exposed Pad
Qualification	AEC-Q100
Supplier Device Package	24-QFNW (4x4)
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	45 V
Voltage - Supply (Vcc/Vdd) [Min]	3.5 V

NCV891930 Series

Low Quiescent Current 2 MHz Automotive Synchronous Buck Controller

Part	Output Type	Number of Outputs	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Duty Cycle (Max)	Supplier Device Package	Function	Topology	Synchronous Rectifier	Clock Sync	Frequency - Switching	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Qualification	Output Phases	Output Configuration	Control Features	Grade	Package / Case
ON Semiconductor NCV891930MW00R2G	Transistor Driver	1	3.5 V	45 V	60 %	24-QFNW (4x4)	Step-Down	Buck			2 MHz	150 °C	-40 °C	Surface Mount Wettable Flank	AEC-Q100	1	Positive	Current Limit Enable Frequency Control Soft Start Sync	Automotive	24-VFQFN Exposed Pad
ON Semiconductor NCV891930MW01R2G	Transistor Driver	1	3.5 V	45 V	60 %	24-QFNW (4x4)	Step-Down	Buck			2 MHz	150 °C	-40 °C	Surface Mount Wettable Flank	AEC-Q100	1	Positive	Current Limit Enable Frequency Control Soft Start Sync	Automotive	24-VFQFN Exposed Pad

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

NCV891930 Series

The NCV891930 is a 2 MHz fixed−frequency low quiescent current buck controller with spread spectrum that operates up to 38 V (typical). It may be synchronized to a clock or to separate NCV891930. Peak current mode control is employed for fast transient response and tight regulation over wide input voltage and output load ranges. Feedback compensation is internal to the device, permitting design simplification. The NCV891930 is capable of converting from an automotive input voltage range of 3.5 V (4.5 V during startup) to 18 V at a constant base switching frequency above the sensitive AM band, eliminating the need for costly filters and EMI countermeasures. The switching frequency folds back to 1 MHz for input voltages between 20 V up to 38 V (typical). Under load dump conditions up to 45 V the regulator shuts down. A high voltage bias regulator with automatic switchover to an external 5 V bias supply is used for improved efficiency. Several protection features such as UVLO, current limit, short circuit protection, and thermal shutdown are provided. 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 solution.(410 kHz version offered with NCV881930)