ISL8540 - DC/DC Power Switching Regulator

Product Overview

Intersil Corporation

Datasheet Details

Part number	ISL8540
Manufacturer	Intersil Corporation
File Size	0.96 MB
Description	DC/DC Power Switching Regulator
Datasheet	ISL8540 Datasheet
Additional preview pages of the ISL8540 datasheet.

Product details

Description

VIN (Pins 1, 2, 19, 20) The input supply for the PWM regulator power stage.Connected to DRAIN of the high side MOSFET.RTCT (Pin 9) A resistor to VIN and a capacitor to GND determine the frequency of the saw-tooth oscillator.Resistor range is R = 20k to 100k.Capacitor range is C = 470pF to 1.2nF.The oscillator amplitude will vary from approximately 0.9V to 10V as VIN changes from 8.5V to 40V to maintain constant frequency and provide feed forward.The oscillator will have a fixed off time,

Features

of this next generation of DC/DC converter include pulse-by-pulse current limit for FET protection, hiccup mode for short circuit protection, voltage feedforward regulation, Frequency SYNC, soft-start, low standby current of 60µA typical in the disabled state, and thermal shut-down. The device is available in a 20 Ld HTSSOP package. Features.
Voltage feedforward mode.
Step down DC/DC supporting up to 2A.
Input voltage range of 9.0V to 40V.
Internal reference.

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Published: Aug 6, 2013 |