Overview

Description

The ISL8500 is a high-performance, simple output controller that provides a single, high frequency power solution for a variety of point-of-load applications. The ISL8500 integrates a 2A standard buck PWM controller and switching MOSFET. The PWM controller in the ISL8500 drives an internal switching N-Channel power MOSFET and requires an external Schottky diode to generate an output voltage from 0.6V to 19V. The integrated power switch is optimized for excellent thermal performance up to 2A of output current. The standard buck input voltage range supports a fixed 5V or variable 5.5V to 25V range. The PWM regulator switches at a fixed frequency of 500kHz and utilizes simple voltage mode control with input voltage feed forward to provide flexibility in component selection and minimize solution size. Protection features include overcurrent, undervoltage and thermal overload protection integrated into the IC. The ISL8500 power good signal output indicates loss of regulation on the PWM output. ISL8500 is available in a small 4mm x 3mm Dual Flat No-Lead (DFN) package.

Features

  • Standard Buck Controller with Integrated Switching Power MOSFET
  • Integrated Boot Diode
  • Input Voltage Range
  • Fixed 5V ±10%
  • Variable 5.5V to 25V
  • PWM Output Voltage Adjustable from 0.6V to 19V with Continuous Output Current up to 2A
  • ±1% VFB Tolerance
  • Voltage Mode Control with Voltage Feed Forward
  • Fixed 500kHz Switching Frequency
  • Externally Adjustable Soft-Start Time
  • Output Undervoltage Protection
  • Enable Inputs
  • PGOOD Output
  • Overcurrent Protection
  • Thermal Overload Protection
  • Internal 5V LDO regulator

Applications

Applications

  • General Purpose
  • WLAN Cards-PCMCIA, Cardbus32, MiniPCI Cards-Compact Flash Cards
  • Hand-Held Instruments
  • LCD Panel
  • Set-top Box

Documentation

Title Type Date
PDF1.03 MB
Datasheet
PDF592 KB
Application Note
PDF509 KB
Application Note
PDF397 KB
Application Note
PDF650 KB
Application Note
PDF387 KB
Application Note
PDF349 KB
Application Note
PDF556 KB
Manual - Development Tools
PDF564 KB
Manual - Development Tools
PDF326 KB
Product Change Notice
PDF398 KB
Product Change Notice
PDF248 KB
Product Change Notice

Design & Development

Software & Tools

Software & Tools

Title Type Company
iSim:PE Offline Simulation TooliSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.Downloads: Simulator Renesas

Boards & Kits

Boards & Kits

Models

Models

Title Type Date
Model - iSim

Support