ISL9443 Datasheet (Intersil) - Synchronous Step-Down PWM Controller

ISL9443, Synchronous Step-Down PWM Controller

PIN 1 2 NAME ISEN1 VCC_5V FUNCTION Current signal input for PWM1.

This pin is used to monitor the voltage drop across the lower MOSFET for current loop feedback and overcurrent protection.

Output of the internal 5V linear regulator.

This output supplies bias for the IC, the low side gate drivers, a

ISL9443 Features

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

* Power-Good Indicator

* Light Load Efficiency Enhancement - Low Ripple Diode Emulation Mode with Pulse Skipping