特性
- >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
描述
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.
应用
- TFT-LCD Displays
- DSL Modems
- PCMCIA Cards
- Digital Cameras
- GSM/CDMA Phones
- Portable Equipment
- Handheld Devices
| Part Number | Status | Samples | Stock | RoHS | Package | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ISL97656IRTZ | Obsolete | N/A | In Stock | RoHS:EN | TDFN | 10# | Tube | 3 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C |
| ISL97656IRTZ-T | Obsolete | N/A | Out of Stock | RoHS:EN | TDFN | 10# | Reel | 3 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C |
| ISL97656IRTZ-TK | Obsolete | N/A | In Stock | RoHS:EN | TDFN | 10# | Reel | 3 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C |
- 产品变更通告英语PDF 326 KB 2021年5月21日
- 产品变更通告英语PDF 158 KB PCN21005 2021年1月25日
- 应用说明英语PDF 592 KB an9208 2018年2月01日AI 生成的摘要: 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.
- 产品变更通告英语PDF 398 KB PCN15046 2016年1月07日
- 产品变更通告英语PDF 299 KB PCN13038A 2014年2月07日
- 产品变更通告英语PDF 34 KB PCN10089 2010年8月31日
- 产品变更通告英语PDF 248 KB PCN10055 2010年6月30日
- 应用说明英语PDF 397 KB an1684 2004年1月19日AI 生成的摘要: 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.
- 应用说明英语PDF 509 KB an1681 2004年1月19日AI 生成的摘要: 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.
- 应用说明英语PDF 409 KB an1379 2004年1月19日AI 生成的摘要: 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.
- 应用说明英语PDF 650 KB an9210 2001年12月21日AI 生成的摘要: 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.
- 应用说明英语PDF 387 KB an9209 1998年8月13日AI 生成的摘要: 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.
- 应用说明英语PDF 349 KB an7244 1998年8月12日AI 生成的摘要: Power MOSFETs feature a positive temperature coefficient of resistance, enhancing stability and preventing thermal runaway by increasing resistance as temperature rises. Their gate terminals have extremely high input impedance with minimal leakage current, dominated by capacitive characteristics. Switching speed depends on gate resistance and capacitance, with polysilicon gates offering higher resistance and lower frequency operation than metal gates. MOSFETs require a gate-to-source voltage exceeding a threshold (around 2V) and typically about 10V to fully saturate and deliver maximum drain current. TTL and CMOS drivers differ in voltage capability and switching speed, often requiring buffering for optimal performance.
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- 应用说明英语PDF 592 KB an9208 2018年2月01日AI 生成的摘要: 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.
- 应用说明英语PDF 397 KB an1684 2004年1月19日AI 生成的摘要: 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.
- 应用说明英语PDF 509 KB an1681 2004年1月19日AI 生成的摘要: 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.
- 应用说明英语PDF 409 KB an1379 2004年1月19日AI 生成的摘要: 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.
- 应用说明英语PDF 650 KB an9210 2001年12月21日AI 生成的摘要: 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.查看更多 (7)
应用说明和白皮书 (7)
- 产品变更通告英语PDF 326 KB 2021年5月21日
- 产品变更通告英语PDF 158 KB PCN21005 2021年1月25日
- 产品变更通告英语PDF 398 KB PCN15046 2016年1月07日
- 产品变更通告英语PDF 299 KB PCN13038A 2014年2月07日
- 产品变更通告英语PDF 34 KB PCN10089 2010年8月31日查看更多 (6)
产品通告(产品变更、EOL 等) (6)
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