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ISL8560

Obsolete

DC/DC Power Switching Regulator

Alternative(s) Available
RAA211630 - Integrated FET 60V, 3A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency

Features

  • Voltage feedforward mode
  • Step down DC/DC supporting up to 2A
  • Input voltage range of 9.0V to 60V
  • Internal reference of 1.21V ±1%
  • Adjustable output voltage range of 1.21V to 55V
  • Adjustable switching frequency 100kHz to 600kHz
  • Frequency SYNC pin
  • Zero load current operation
  • Pulse by pulse mode current limit and Hiccup mode
  • Low standby current of 60µA typical
  • Thermal shut-down
  • Load dump to 100V for 400ms
  • Pb-free (RoHS compliant)
ISL8560 Functional Diagram
ISL8560 Functional Diagram

Description

The ISL8560 is a step down DC/DC power switching regulator which accepts 9.0V to 60V input and provides a 2A output current. The output voltage can be set in the range between 1.21V and 55V by means of an external divider. The device uses an internal power DMOS transistor with a typical rDS(ON) of 0.19Ω to obtain very high efficiency and high switching speed. A switching frequency in the range of 100kHz to 600kHz can be realized (the maximum power dissipation of the various packages must be observed). Notable features of this next generation of DC/DC converter includes 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 QFN package.

Applications

  • Industrial and automotive power supplies
  • Portable computers
  • Battery chargers
  • Distributed power systems
Part NumberStatusSamplesStockRoHSPackageCarrier TypeMOQ
ISL8560IRZObsoleteN/AIn StockRoHS:EN
QFNTube1000
ISL8560IRZ-TObsoleteN/AOut of StockRoHS:EN
QFNReel4000
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    Recommended Documents (1)

  1. Datasheet
    ISL8560 Datasheet
    RECOMMENDED
    PDF 1.44 MB isl8560 Jan 19, 2004

    Datasheets (1)

  1. Datasheet
    ISL8560 Datasheet
    RECOMMENDED
    PDF 1.44 MB isl8560 Jan 19, 2004

    Application Notes & White Papers (6)

  1. Application Note
    AN9208: High Frequency Power Converters
    PDF 592 KB an9208 Feb 01, 2018
    AI-generated Summary: The document discusses high frequency power converters, focusing on ZVS-QRC and multi-resonant topologies that reduce switching losses by operating switches at zero voltage. It highlights challenges like EMI and high voltage stress. The SEPIC converter is introduced, explaining its ability to buck or boost voltage without polarity inversion. The document details SEPIC’s operating modes, voltage-current relationships, and the importance of inductor values for continuous or discontinuous conduction modes.
  2. Application Note
    AN1684: Nonideality of Ground
    PDF 397 KB an1684 Jan 19, 2004
    AI-generated Summary: The document outlines important legal disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design and safety, disclaims liability for damages, and clarifies no intellectual property licenses are granted. Products are categorized by quality grades with specific application recommendations. Users must comply with laws, avoid unauthorized modifications, and ensure safe use within specified conditions. Contact details for Renesas Electronics sales offices worldwide are provided.
  3. Application Note
    AN1681: Grounding Techniques
    PDF 509 KB an1681 Jan 19, 2004
    AI-generated Summary: The document explains grounding techniques for PCB layouts using a dual op amp example on a single-layer copper board. It compares three grounding schemes: a center spine ground trace, an outer ground plane, and a split/star ground plane, highlighting the benefits of single-point grounding to minimize noise and antenna effects. It emphasizes following current paths, minimizing loop lengths, and ensuring close forward and return paths to reduce interference. The document also includes disclaimers on product use, quality grades, safety, and legal compliance.
  4. Application Note
    AN9210: A New Pspice Subcircuit For The Power MOSFET Featuring Global Temperature Options
    PDF 650 KB an9210 Dec 21, 2001
    AI-generated Summary: This document presents a new PSPICE subcircuit model for power MOSFETs with global temperature options. It details synchronous rectifier circuit operation, including gate biasing and conduction modes. The model accurately simulates switching waveforms, diode recovery, and temperature-dependent efficiency. Measured and modeled data show excellent correlation for output characteristics, threshold voltage, breakdown voltage, and on-resistance across temperature ranges. Limitations in linear mode modeling are noted due to PSPICE assumptions.
  5. Application Note
    AN9209: A Spice-2 Subcircuit Representation For Power MOSFETs Using Empirical Methods
    PDF 387 KB an9209 Aug 13, 1998
    AI-generated Summary: The document presents an empirical SPICE-2 subcircuit model for power MOSFETs, accurately simulating static and dynamic behaviors including first and third-quadrant operations and avalanche breakdown. The model aligns closely with measured data and is compatible with all SPICE versions without code modification. It uses parameters derived from datasheets or simple measurements. The document also includes detailed comparisons of measured and calculated curves for transfer, output, switching, and diode recovery characteristics. Additionally, it provides legal and usage disclaimers from Renesas Electronics.
    6. View More (6)

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    Software & Tools (1)

  1. Simulator
    iSim:PE Offline Simulation Tool
    iSim 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.

    Simulation Models (1)

  1. Model - iSim
    ISL8560 iSim:PE Model
    Log in to Download SXSCH 136 KB SI100040 Mar 25, 2021
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