NCP81258 Datasheet - ON Semiconductor

NCP81258 Synchronous Buck MOSFET Driver

Pin No. Pin Name Description 1 BST Floating bootstrap supply pin for the high *side gate driver. Connect the external bootstrap ca- pacitor between this pin and SW. 2 PWM Control input: PWM = High ³ DRVH is high, DRVL is low. PWM = Mid ³ Zero current detect enabled. Diode emulatio.

NCP81258 Features

* Space

* efficient 2 mm x 2 mm DFN8 Thermally

* enhanced Package

* VCC Range of 4.5 V to 13.2 V

* Internal Bootstrap Diode

* 5 V 3

* stage PWM Input

* Zero Current Detect Function Provides Power Saving Operation during Light Load Conditions

NCP81258-ONSemiconductor.pdf