NCP81045 Datasheet (ON Semiconductor) - Single Synchronous Step-Down Controller

NCP81045, Single Synchronous Step-Down Controller

Pin No.

Symbol Description 1 VIN Input voltage used for feed forward in switcher operation.

2 VCC Supply for analog circuit 3 SYN Synchronization interleaving use.

4 EN This pin serves as two functions.

Enable: Logic control for enabling the switcher.

MASTER/SLAVE: To program the device a

NCP81045 Features

* soft

* start sequence, UVLO for VCC and switcher, overvoltage protection, overcurrent protection, undervoltage protection and thermal shutdown. The IC is packaged in QFN16. Features

* 0.8% accuracy 0.8 V Reference

* 4.5 V to 27 V Battery/Adaptor Voltage Range

* Adjustab