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 A 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 ProtectionApplicationTVs, VCRs, Electronic Games
Embedded Core, Memory, or Logic Supplies
Printers and Other Office Equipment
Industrial MachineryPinout
SpecificationsInput Voltage, VI, VCC, VCE . . . . . . . . . . . . . . . . . . 21 V
Output Current, IO . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A*
Junction Temperature, TJ . . . . . . . . . . . . . . . . .+135°C
Storage Temperature Range, TS . . . -40°C to +135°C
* Output current rating is limited by input voltage, duty cycle, and ambient temperature. Under any set of conditions, do not exceed a junction temperature of +135°C.
- 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
- TVs, VCRs, Electronic Games
- Embedded Core, Memory, or Logic Supplies
- Printers and Other Office Equipment
- Industrial Machinery
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.
DescriptionDesigned 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. SPI-8001TW 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 SPI-8001TW 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.
SPI-8001TW Data Sheet
