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ISL97519A

Obsolete

600kHz/1.2MHz PWM Step-Up Regulator

Features

  • >90% Efficiency
  • 2.0A, 200mΩ Power MOSFET
  • 2.3V to 5.5V Input
  • 1.1*VIN up to 25V Output
  • 600kHz/1.2MHz Switching Frequency Selection
  • Adjustable Soft-Start
  • Internal Thermal Protection
  • 1.1mm Max Height 8 Ld MSOP Package
  • Pb-Free (RoHS compliant)
  • Halogen Free
Find Other Products in Boost Regulators (Integrated FETs)
ISL97519A Functional Diagram
ISL97519A Functional Diagram

Description

The ISL97519A is a high frequency, high efficiency step-up voltage regulator operated at constant frequency PWM mode. With an internal 2. 0A, 200mΩ MOSFET, it can deliver up to 1A output current at over 90% efficiency. Two selectable frequencies, 600kHz and 1. 2MHz, allow trade offs between smaller components 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 ISL97519A is available in an 8 Ld MSOP 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)
ISL97519AIUZObsoleteN/AIn StockRoHS:EN
MSOP8#Tube3YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +85°C
ISL97519AIUZ-TObsoleteN/AIn StockRoHS:EN
MSOP8#Reel3YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +85°C
ISL97519AIUZ-TKObsoleteN/AIn StockRoHS:EN
MSOP8#Reel3YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +85°C
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Filters

    Recommended Documents (1)

  1. Datasheet
    ISL97519A Datasheet
    RECOMMENDED
    PDF 728 KB isl97519a Nov 08, 2002

    Datasheets (1)

  1. Datasheet
    ISL97519A Datasheet
    RECOMMENDED
    PDF 728 KB isl97519a Nov 08, 2002

    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)

    Product Notices (PCN, EOL, etc) (1)

  1. 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

Renesas Boards & Kits

ISL97519AIUZEVALZ PWM Boost Regulator Eval Board
ISL97519IUZEVALZ Active

600kHz/1.2MHz PWM Step-Up Regulator Evaluation Board

The ISL97519AIUZEVALZ and ISL97519IUZEVALZ evaluation boards are used to evaluate the ISL97519A and ISL97519 step-up voltage regulators that operate with high frequency and high efficiency. These kits are designed to deliver over 90% efficiency and provide a dip switch that allows users to... Read More

Recommended Documents:
ISL97519IUZ-EVALZ User Guide
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Support Communities

  1. ISL97519 output at 3 Volts with Enable pin low

    I'm using an ISL97519 switching regulator with a 3.2 Volt input and 5 Volt fixed output.  My PCB implements the  typical operating circuit detailed in the ISL datasheet.  The output is a stable 5 Volts with enable pulled high, but only drops to 3.0 Volts when the ...

    Sep 7, 2020
  2. Looking for step-up dc/dc converter with Vin 2.5V , Vout 30V

    Hello Team, I am looking for a boost converter with the following requirements : Vin 2.5 To 4V Vout >30V power output 8W, I did not manage to find any boost device that accepts Vin below 4.5V, could you please advise if we have anything to offer? Thanks in ...

    Dec 7, 2023
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