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
