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ISL9443

Intersil
Part Number ISL9443
Manufacturer Intersil
Description Synchronous Step-Down PWM Controller
Published Jan 5, 2013
Detailed Description Triple, 180° Out-of-Phase, Synchronous Step-Down PWM Controller ISL9443 The ISL9443 is a triple-output synchronous buck ...
Datasheet PDF File ISL9443 PDF File

ISL9443
ISL9443

Overview
Triple, 180° Out-of-Phase, Synchronous Step-Down PWM Controller ISL9443 The ISL9443 is a triple-output synchronous buck controller that integrates three PWM controllers which are fully featured and designed to provide multi-rail power for use in products such as cable and satellite set-top boxes, VoIP gateways, cable modems, and other home connectivity products as well as a variety of industrial and general purpose applications.
Each output is adjustable down to 0.
7V.
The PWMs are synchronized at 180° out-of-phase, thus reducing the input RMS current and ripple voltage.
The ISL9443 offers programmable soft-start and tracking functions for ease of supply rail sequencing and integrated UV/OV/OC/OT protections in a space conscious 5mmx5mm QFN package.
Switching frequency can be set between 200kHz and 1200kHz using a resistor.
The ISL9443 can be synchronized to an external clock to reduce beat frequencies.
The ISL9443 utilizes internal loop compensation to keep minimum peripheral component...


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