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ISL97656

Obsolete

Integrated 4A Switch PWM Step-Up Regulator

Features

  • >90% Efficiency
  • 4.0A, 120mΩ Power MOSFET
  • 2.3V to 6.0V Input
  • 1.1*VIN to 25V Output
  • 640kHz/1.2MHz Switching Frequency Selection
  • Adjustable Soft-Start
  • Internal Thermal Protection
  • 0.8mm Max Height 10 Ld TDFN Package
  • Pb-Free (RoHS Compliant)
  • Halogen Free
Find Other Products in Boost Regulators (Integrated FETs)
ISL97656 Functional Diagram
ISL97656 Functional Diagram

Description

The ISL97656 is a high frequency, high efficiency step-up voltage regulator operated at constant frequency PWM mode. With an internal 4. 0A, 120mΩ MOSFET, it can deliver up to 2A output current at over 90% efficiency. The selectable 640kHz and 1. 2MHz allows smaller inductors and faster transient response. An external compensation pin gives the user greater flexibility in setting frequency compensation allowing the use of low ESR Ceramic output capacitors. When shut down, it draws 1µA of current and can operate down to 2. 3V input supply. These features, along with 1. 2MHz switching frequency, make it an ideal device for portable equipment and TFT-LCD displays. The ISL97656 is available in a 10 Ld TDFN package with a maximum height of 1. 1mm. The device is specified for operation over the full -40°C to +85°C temperature range.

Applications

  • TFT-LCD Displays
  • DSL Modems
  • PCMCIA Cards
  • Digital Cameras
  • GSM/CDMA Phones
  • Portable Equipment
  • Handheld Devices
Part NumberStatusSamplesStockRoHSPackageLead Count (#)Carrier TypeMoisture Sensitivity Level (MSL)Pb (Lead) FreePb Free CategoryTemp. Range (°C)
ISL97656IRTZObsoleteN/AIn StockRoHS:EN
TDFN10#Tube3YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +85°C
ISL97656IRTZ-TObsoleteN/AOut of StockRoHS:EN
TDFN10#Reel3YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +85°C
ISL97656IRTZ-TKObsoleteN/AIn StockRoHS:EN
TDFN10#Reel3YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +85°C
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    Recommended Documents (1)

  1. Datasheet
    ISL97656 Datasheet
    RECOMMENDED
    PDF 654 KB isl97656 Nov 08, 2002

    Datasheets (1)

  1. Datasheet
    ISL97656 Datasheet
    RECOMMENDED
    PDF 654 KB isl97656 Nov 08, 2002

    Application Notes & White Papers (7)

  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
    AN1379: ISL97656 SEPIC for 3VIN to 12VIN to 3.3VOUT at 1A Application
    PDF 409 KB an1379 Jan 19, 2004
    AI-generated Summary: Pages 3 to 5 primarily contain images of the ISL97656 SEPIC test board front and back sides, efficiency graphs for input voltages of 3V and 12V, and output voltage ripple data at 0.7A load. The pages also include contact information for Renesas Electronics offices worldwide and detailed legal disclaimers regarding product use, liability, and compliance. No textual application details or PCB design file listings are present.
  5. 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.
    6. View More (7)

    Product Notices (PCN, EOL, etc) (6)

  1. Product Change Notice
    PCN20029A - Alternate bond wire material and assembly facility of the listed Renesas QFN packaged products
    PDF 326 KB May 21, 2021
  2. Product Change Notice
    PCN21005 - Alternate assembly facility of the listed Renesas DFN / QFN / TDFN / TQFN packaged products
    PDF 158 KB PCN21005 Jan 25, 2021
  3. Product Change Notice
    PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II
    PDF 398 KB PCN15046 Jan 07, 2016
  4. Product Change Notice
    PCN13038A - Alternate Bond Wire Material for Assembly of the Listed Intersil DFN/QFN Packaged Products - removal of select products
    PDF 299 KB PCN13038A Feb 07, 2014
  5. Product Change Notice
    PCN10089 - Alternate Manufacturing Site for Intersil Product ISL97656* - STATS ChipPAC Malaysia
    PDF 34 KB PCN10089 Aug 31, 2010
    6. View More (6)

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Simulation Models

    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
    ISL97656 iSim:PE Model
    Log in to Download SXSCH 101 KB SI100171 Mar 25, 2021
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