SPI-8010A

• Wide 8 V to 50 V Input Range
• Adjustable 1.2 V to 16 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

• 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-8010A dc/dc stepdown (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.

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 temperature. Under any set of conditions, do not exceed a junction temperature of +125°C.

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 stepdown (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. SPI-8010A 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 SPI-8010A 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.

The SPI-8010A is designed for 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-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.

Features of the SPI-8010A are:(1)wide 8 V to 50 V input range;(2)adjustable 1.2 V to 24 V output range;(3)constant 250 kHz switching frequency;(4)soft start avoids supply voltage dip;(5)exposed pad for superior heat dissipation.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.

The absolute maximum ratings of theSPI-8010A can be summarized as:(1)Input Voltage, VI:53 V;(2)Output Current, Io:3 A*;(3)Junction Temperature, Tj: +125°C.If the winding resistance of the choke coil is too high, the circuit efficiency will decrease. As the overcurrent protection start current is approximately 4.5 A,attention must be paid to the heating of the coil by magnetic saturation due to overload.To reduce the output ripple, the inductor may be increased at the expense of excessive board area and cost.The information included herein is believed to be accurate and reliable. Application and operation examples described in this publication are given for reference only and Sanken and Allegro assume no responsibility for any infringement of industrial property rights, intellectual property rights, or any other rights of Sanken or Allegro or any third party that may result from its use.