ISL9444 - Synchronous Step-Down PWM Controller

Renesas

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Datasheet Details

Part number	ISL9444
Manufacturer	Renesas
File Size	1.42 MB
Description	Synchronous Step-Down PWM Controller
Datasheet	ISL9444-Renesas.pdf

ISL9444 Product details

Description

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 optional external 5V bias supply.There is an internal switch from this pin to VCC_5V.This switch closes and supplies the IC power, bypassing the internal linear regulator, when voltage at EXTBIAS is highe

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 Mode with Pulse Skipping.
Supports Pre-Biased Output.
Programmable Frequency: 200kHz to 1200kHz.
Adaptive Shoot-through Protection.
Out-of-Phase Switching (0°/180°/0.

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Published: Jun 18, 2019 |