Features
- Integrated synchronous MOSFETs and current mode controller
- 4A continuous output current
- Up to 95% efficiency
- 4.5V to 5.5V input voltage
- Adjustable output from 1V to 3.8V
- Cycle-by-cycle current limit
- Precision reference
- ±0.5% load and line regulation
- Adjustable switching frequency to 1MHz
- Oscillator synchronization possible
- Internal soft start
- Over voltage protection
- Junction temperature indicator
- Over temperature protection
- Under voltage lockout
- Multiple supply start-up tracking
- Power good indicator
- 20-pin SO (0.300") package
- 28-pin HTSSOP package
- Pb-Free available (RoHS compliant)
EL7564 Functional Diagram
Description
Support is limited to customers who have already adopted these products.
The EL7564 is an integrated, full-featured synchronous step-down regulator with output voltage adjustable from 1. 0V to 3. 8V. It is capable of delivering 4A continuous current at up to 95% efficiency. The EL7564 operates at a constant frequency pulse width modulation (PWM) mode, making external synchronization possible. Patented on-chip resistorless current sensing enables current mode control, which provides cycle-by-cycle current limiting, over-current protection, and excellent step load response. The EL7564 features power tracking, which makes the start-up sequencing of multiple converters possible. A junction temperature indicator conveniently monitors the silicon die temperature, saving the designer time on the tedious thermal characterization. The minimal external components and full functionality make this EL7564 ideal for desktop and portable applications. The EL7564 is specified for operation over the -40°C to +85°C temperature range.
Applications
- DSP, CPU core and IO supplies
- Logic/Bus supplies
- Portable equipment
- DC:DC converter modules
- GTL + Bus power supply
| Part Number | Status | Samples | Stock | Package | Carrier Type |
|---|---|---|---|---|---|
| EL7564CM | Obsolete | N/A | Out of Stock | SOICW | Tube |
| EL7564CM-T13 | Obsolete | N/A | Out of Stock | SOICW | Reel |
| EL7564CMZ | Obsolete | N/A | Out of Stock | SOICW | Tube |
| EL7564CMZ-T13 | Obsolete | N/A | Out of Stock | SOICW | Reel |
| EL7564CRE | Obsolete | N/A | Out of Stock | TSSOP-EP | Tube |
| EL7564CRE-T13 | Obsolete | N/A | Out of Stock | TSSOP-EP | Reel |
| EL7564CRE-T7 | Obsolete | N/A | Out of Stock | TSSOP-EP | Reel |
| EL7564CREZ | Obsolete | N/A | Out of Stock | TSSOP-EP | Tube |
| EL7564CREZ-T13 | Obsolete | N/A | Out of Stock | TSSOP-EP | Reel |
| EL7564CREZ-T7 | Obsolete | N/A | Out of Stock | TSSOP-EP | Reel |
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- Application NotePDF 592 KB an9208 Feb 01, 2018AI-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.
- End Of Life NoticePDF 200 KB PLC15033 Jun 11, 2015
- Product Change NoticePDF 76 KB PCN13003 Jan 08, 2013
- Product Change NoticePDF 98 KB PCN12094 Dec 19, 2012
- End Of Life NoticePDF 100 KB PLC11074 Aug 19, 2011
- Application NotePDF 397 KB an1684 Jan 19, 2004AI-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.
- Application NotePDF 509 KB an1681 Jan 19, 2004AI-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.
- Application NotePDF 236 KB an1108 Apr 15, 2003AI-generated Summary: This document outlines important legal disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design, liability disclaimers by Renesas Electronics, restrictions on modification and reverse engineering, and classification of product quality grades. It also highlights safety requirements, compliance with laws and regulations, and the necessity to consult the latest product information. Contact details for Renesas Electronics sales offices worldwide are provided.
- Application NotePDF 817 KB an1101 Apr 15, 2003AI-generated Summary: The document details the design of a high-efficiency DC-DC converter using the EL75XX series. It explains the pin functions, including charge pump capacitors, voltage doubler input, ground connections, and control signals. The basic buck regulator topology is described, showing how the output voltage depends on input voltage and duty cycle. It also covers synchronized rectification, replacing diodes with low-resistance FETs to improve efficiency and reduce power loss, with the addition of a Schottky diode to enhance reliability during transient states.
- Application NotePDF 453 KB an1096 Apr 15, 2003AI-generated Summary: The document details thermal design considerations for the EL75XX series, focusing on the 28 PSOP 2 package. It explains two versions of the package—slug down and slug up—with different mounting and heat dissipation options. Various heatsink configurations, bonding materials, and forced air convection methods improve thermal performance, enabling power dissipation from 2W up to 9W. Thermal resistance values and the effects of airflow on heat dissipation are analyzed with graphical data.
- Application NotePDF 650 KB an9210 Dec 21, 2001AI-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.
- Application NotePDF 387 KB an9209 Aug 13, 1998AI-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.
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- Application NotePDF 592 KB an9208 Feb 01, 2018AI-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.
- Application NotePDF 397 KB an1684 Jan 19, 2004AI-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.
- Application NotePDF 509 KB an1681 Jan 19, 2004AI-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.
- Application NotePDF 236 KB an1108 Apr 15, 2003AI-generated Summary: This document outlines important legal disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design, liability disclaimers by Renesas Electronics, restrictions on modification and reverse engineering, and classification of product quality grades. It also highlights safety requirements, compliance with laws and regulations, and the necessity to consult the latest product information. Contact details for Renesas Electronics sales offices worldwide are provided.
- Application NotePDF 817 KB an1101 Apr 15, 2003AI-generated Summary: The document details the design of a high-efficiency DC-DC converter using the EL75XX series. It explains the pin functions, including charge pump capacitors, voltage doubler input, ground connections, and control signals. The basic buck regulator topology is described, showing how the output voltage depends on input voltage and duty cycle. It also covers synchronized rectification, replacing diodes with low-resistance FETs to improve efficiency and reduce power loss, with the addition of a Schottky diode to enhance reliability during transient states.View More (9)
Application Notes & White Papers (9)
- End Of Life NoticePDF 200 KB PLC15033 Jun 11, 2015
- Product Change NoticePDF 76 KB PCN13003 Jan 08, 2013
- Product Change NoticePDF 98 KB PCN12094 Dec 19, 2012
Product Notices (PCN, EOL, etc) (6)
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