概要

The ISL85001 is a high-performance, simple output controller that provides a single, high frequency power solution for a variety of point-of-load applications. The ISL85001 integrates a 1A standard buck PWM controller and switching MOSFET. The PWM controller in the ISL85001 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 for up to 1A 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 ISL85001 power-good signal output indicates loss of regulation on the PWM output. ISL85001 is available in a small 4mm x 3mm Dual Flat No-Lead (DFN) package.

ISL85001 Functional Diagram
ISL85001 Functional Diagram
  • 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 1A
  • ±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
  • Pb-free (RoHS compliant)

アプリケーション

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

ドキュメント

設計・開発

ISL85001EVAL1Z Buck PWM Regulator Eval Board

ISL85001EVAL1Z

Evaluation
詳しくはこちら

1A Standard Buck PWM Regulator Evaluation Board

The ISL85001EVAL1Z evaluation board is used to demonstrate the performance of the ISL85001 standard buck regulator and is intended for use by individuals with...

主要ドキュメント:
ISL85001EVAL1Z User Guide

ECADモデル

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製品選択

    Processing table
    Pkg. Type
    Carrier Type
    Price (USD) | 1ku
    ご購入 / サンプル
    型名
    ISL85001IRZ
    circle最終購入とりまとめ品
    memory
    spa
    view_in_ar
    サンプル入手可能
    今すぐ購入する
    		DFN Tube サンプルを入手,
    ISL85001IRZ-T
    circle最終購入とりまとめ品
    memory
    spa
    view_in_ar
    サンプル入手可能
    		 DFN Reel サンプルを入手,
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