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SPI-8010A Scheda tecnica(PDF) 1 Page - Allegro MicroSystems |
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SPI-8010A Scheda tecnica(HTML) 1 Page - Allegro MicroSystems |
1 / 9 page Designed to meet high-current requirements at high efficiency in industrial and consumer applications; embedded core, memory, or logic supplies; TVs, VCRs, and office equipment, the SPI-8010A dc/dc step- down (buck) converter offers a constant 250 kHz switching frequency essential for small external components. The n-channel high-current FET is included on the die along with the oscillator, control, and logic circuitry. A wide input voltage range and integrated thermal and overcurrent protection enhance overall system reliability. Reference accuracy and excellent temperature characteristics are provided. A chip-enable input gives the designer complete control over power up, standby, or power down. This device is supplied in a 16-lead surface-mount plastic SOIC with exposed pad to provide a low-resistance path for maximum power dissipation, low junction temperature, and improved reliability. FEATURES ■ Wide 8 V to 50 V Input Range ■ Adjustable 1.2 V to 24 V Output Range ■ 3% Output Voltage Tolerance ■ To 3 A Output Current ■ Foldback Current Limiting ■ Constant 250 kHz Switching Frequency ■ 400 µA Maximum Standby Current ■ 1.0 V Feedback Reference Voltage ■ Soft Start Avoids Supply Voltage Dip ■ Remote Voltage Sensing ■ Exposed Pad for Superior Heat Dissipation ■ Thermal Protection APPLICATIONS ■ TVs, VCRs, Electronic Games ■ Embedded Core, Memory, or Logic Supplies ■ Printers and Other Office Equipment ■ Industrial Machinery 3 A, DC/DC Step-Down Converter Always order by complete part number, e.g., SPI-8010A-TL , where “-TL” indicates tape and reel. ABSOLUTE MAXIMUM RATINGS Input Voltage, V I . . . . . . . . . . . . . 53 V Output Current, I O . . . . . . . . . . . . . 3 A* Junction Temperature, T J . . . . +125°C Storage Temperature Range, T S . . . . . . . . . . . . -40°C to +125°C * Output current rating is limited by input voltage, duty cycle, and ambient tempera- ture. Under any set of conditions, do not exceed a junction temperature of +125°C. SPI-8010A Sanken Power Devices from Allegro MicroSystems Switching Regulators |
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