NCV8851-1 Datasheet (ON Semiconductor) - Automotive Grade Synchronous Buck Controller

NCV8851-1, Automotive Grade Synchronous Buck Controller

* 20 Lead TSSOP Package Pin# Pin Symbol Function 1 SYNC External clock synchronization input.

2 VIN_CS Supply input for the internal current sense amplifier.

3 VIN_IC Supply input for internal logic and analog circuitry.

4 BST Supply input for the floating top gate driver.

NCV8851-1 Automotive Grade Synchronous Buck Controller The NCV8851 1 is an adjustable output, synchronous buck controller, which drives dual N channel MOSFETs, ideal for high power applications.

Average current mode control is employed for very fast transient response and tight regulation over wide input voltage and output load ranges.

The IC incorporates an internal fixed 6.0 V low dropout linear regulator (LDO), which supplies charge to the switch mode power supply’s (

NCV8851-1 Features

* include undervoltage lockout, internal soft

* start, low quiescent current sleep mode, programmable frequency, SYNC function, average current limiting, cycle

* by

* cycle overcurrent protection and thermal shutdown. Features

* Average Current Mode Control

* 0.8 V ±2