ISL9443 - Synchronous Step-Down PWM Controller

Product Overview

Intersil

Part number	ISL9443
Manufacturer	Intersil
File Size	1.29 MB
Description	Synchronous Step-Down PWM Controller
Datasheet	ISL9443 Datasheet
Additional preview pages of the ISL9443 datasheet.

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.

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.
Supports Pre-Biased Output.
Programmable Frequency: 200kHz to 1200kHz.
Adaptive Shoot-Through Protection.
Out-of-Phase Switching (0°/180°/0°).
No External.

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Published: Jan 5, 2013 |