Overview

The ISL8118 is a single-phase PWM controller featuring an input voltage range of +3.3V to +20V and integrated MOSFET drivers. Utilizing voltage-mode operation with input voltage feed-forward compensation, the ISL8118 maintains a constant loop gain, providing optimal transient response for applications with a wide input operating voltage range. The output voltage can be precisely regulated down to 0.591V with a system tolerance of ±1.0% over the industrial temperature range and line and load variations. A external reference input is provided to bypass the internal reference for voltage tracking or DDR memory applications. The compact 28 Ld 5mm x 5mm QFN package, integrated linear regulator as well as the external linear regulator drive option, integrated differential remote sense amplifier and integrated voltage margining with adjustable upper and lower settings decrease external component count and reduce board space requirements. Programmable soft-start with pre-biased load capability, adjustable operating frequency from 250kHz to 2MHz, sourcing and sinking overcurrent protection, overvoltage and undervoltage protection, and power-good indication with programmable delay combine to make the ISL8118 a superior choice for many power supply systems.

ISL8118 Functional Diagram
ISL8118 Functional Diagram
  • Wide Input Voltage Range: +3.3V to +20V
  • High-Speed 2A/4A MOSFET Gate Drivers that Operate from 2.9V to 5.6V
  • Operating Junction Temperature Range –40°C to +125°C
  • External Reference Input
  • Input Voltage Feed-forward Compensation
  • Internal Linear Regulator
  • External Linear Regulator Drive Available
  • High System Accuracy:
  • ±0.68% Over the Range of 0°C to +70°C
  • ±1.00% Over the Range of -40°C to +85°C
  • Programmable Operating Frequency from 250kHz to 2MHz
  • Programmable Soft-Start with Pre-biased Load Capability
  • Integrated Unity-Gain Differential Remote Sense Amplifier
  • Enable Input with Voltage Monitoring Capability
  • Integrated Voltage Margining with Independent Upper and Lower Settings
  • Overvoltage and Undervoltage Protection
  • Low-Side and High-Side MOSFET Current Sensing
  • Overcurrent Protection for Sourcing and Sinking Currents
  • Power-Good Indicator with Programmable Delay
  • Compact 28 Ld 5x5 QFN Package
  • Pb-Free (RoHS Compliant)

Applications

  • Telecom and Datacom Servers
  • Point of Load Modules
  • Routers and Switchers

Documentation

= Featured Documentation
Type Title Date
Datasheet
ISL8118 Datasheet
PDF 997 KB
Product Change Notice
PCN20029A - Alternate bond wire material and assembly facility of the listed Renesas QFN packaged products
PDF 326 KB
Product Change Notice
PCN14036 - Wafer fabrication Site Change for Listed Intersil Products - Palm Bay, Florida
PDF 294 KB
Product Change Notice
PCN13025 - Alternate Bond Wire Material and Manufacturing Facilities for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering (ASECL) - Chung-Li , Taiwan and STATS ChipPAC (SCM) - Kuala Lumpur, Mal
PDF 106 KB
Product Change Notice
PCN13009 - Alternate Bond Wire Material and Manufacturing Facilities for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering (ASECL) - Chung-Li (ASECL), Taiwan and STATS ChipPAC (SCM) - Kuala Lump
PDF 173 KB
Product Change Notice
PCN10055 - Alternate Bond Wire Material for Assembly of the Listed Intersil DFN/QFN Packaged Products - STATS ChipPAC Malaysia
PDF 248 KB
Product Change Notice
PCN10019 - Moisture Sensitivity Level Change for Intersil ISL6540*, ISL6540A*, and ISL8118* Products
PDF 61 KB
Application Note
AN1681: Grounding Techniques
PDF 509 KB
Application Note
AN1684: Nonideality of Ground
PDF 397 KB
9 items

Design & Development

ISL8118EVAL1Z Evaluation Board

ISL8118EVAL1Z

Evaluation
Learn More

3.3V to 20V Single-Phase PWM Controller with Integrated 2A/4A MOSFET Driver Evaluation Board

The ISL8118EVAL1Z evaluation board highlights the operations of the ISL8118 pulse width modulation (PWM) controller in a DC/DC application.

The ISL8118 is a...

Featured Documents:
ISL8118EVAL1Z User Guide

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Product Options

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