SPI-8001TW: Dual 1.5 A DC/DC Step-Down Buck Converter

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 frequency essential for small external components. The n-channel highcurrent 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.

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  • Features and BenefitsFeatures and Benefits
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  • 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

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Functional Block Diagram Package and Pinout Diagram

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
SPI-8001TW 16-lead SOIC -40°C to 135°C Yes View Data New Contact your
local sales rep
Check Stock

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