ISL9444 Datasheet - Renesas

ISL9444 - Synchronous Step-Down PWM Controller

PIN NAME FUNCTION 1 PFO Output of the auxiliary power monitor. PFO goes high if the voltage on PFI is greater than 1.2V (typical). Otherwise the PFO outputs low. 2 PFI Input to the auxiliary power monitor. The internal threshold voltage is 1.2V (typical). 3 EXTBIAS Input from an optiona.

ISL9444 Features

* Three Integrated Synchronous Buck PWM Controllers - Internal Bootstrap Diodes - Independent Programmable Output Voltage - Independent Power-Good Indicators, Soft-Starting and Tracking

* Power Failure Monitor

* Light Load Efficiency Enhancement - Low Ripple Diode Emulation M

ISL9444-Renesas.pdf