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SPI-8001TW Datasheet(PDF) 1 Page - Allegro MicroSystems |
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SPI-8001TW Datasheet(HTML) 1 Page - Allegro MicroSystems |
1 / 10 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-8001TW dc/dc step-down (buck) converter offers a constant 250 kHz switching fre- quency 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. A similar device, with increased input and output voltage ratings, is the SPI-8002TW. 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 To 20 V Input Range Adjustable 1 V to 16 V Output Range 1% Output Voltage Tolerance To 1.5 A Output Current Foldback Current Limiting Constant 250 kHz Switching Frequency 1.0 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 Dual 1.5 A, DC/DC Step-Down Converter Always order by complete part number, e.g., SPI-8001TW-TL , where “-TL” indicates tape and reel. ABSOLUTE MAXIMUM RATINGS Input Voltage, V I, VCC, VCE . . . . . 21 V Output Current, I O . . . . . . . . . . . 1.5 A* Junction Temperature, T J . . . . +135°C Storage Temperature Range, T S . . . . . . . . . . . . -40°C to +135°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 +135°C. SPI-8001TW Sanken Power Devices from Allegro MicroSystems Switching Regulators |
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