SPI-8002TW

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The SPI-8002TW is a DC/DC step-down switching regulator from the Point-of-Load (POL) family of products from Texas Instruments. This device can provide up to 3A of current, making it well suited for applications that require higher loads. The SPI-8002TW is specifically designed for use in special military and aerospace applications, as well as other areas where small size, low noise and high reliability are paramount.

Application Fields

The SPI-8002TW is designed to provide an output of 2.5V (min) to 5.5V (max) with a current capacity of up to 3A. It features low dropout voltage, ultra-low leakage current and tight current limits, allowing for reliable power supply operation in a wide range of system scenarios. As it is specifically designed for military and aerospace use, the SPI-8002TW can provide reliable operation in high temperature, high-altitude and high-vibration environments.

The SPI-8002TW is an excellent choice for applications that require medium-to-high power load operations. Typical use cases include but are not limited to powering high power FPGAs, ASICs, and microprocessors, driving multi-channel transceivers, providing power within satellites, and supplying power needed in missile systems.

Working Principle

The SPI-8002TW is a synchronous buck switching regulator with a fixed output voltage. The SPI-8002TW synchronizes the output voltage with the input voltage, and then internally converts the input DC voltage to the required output voltage. This is achieved by switching the two internal MOSFETs at a frequency determined by the amount of the current draw from the power supply. This switching provides efficient step-down voltage conversion with low output ripple voltage.

The SPI-8002TW includes several features for improved performance which include current limit protection, under-voltage lockout protection, and frequency synchronization. The current limit protection ensures that the output current draw does not exceed 3A. The under-voltage lockout protection prevents the regulator from operating at voltages below the minimum recommended voltage. The frequency synchronizing feature allows the SPI-8002TW to synchronize its switching frequency to an external clock, allowing for accurate frequency control when noise or EMF sensitivity is a concern.

The SPI-8002TW is designed to provide reliable power also in extreme conditions as its junction temperature range is -55°C to 150°C and its operating altitude is up to 20000 feet. This device is ideal for applications requiring reliable operation in harsh environment.

Conclusion

The SPI-8002TW is a robust step-down switching regulator from the Point-of-Load (POL) family of products from Texas Instruments. This device is specifically designed for use in special military and aerospace applications and other areas where small size, low noise and high reliability are paramount. The SPI-8002TW provides efficient step-down voltage conversion with low output ripple voltage and can reach up to 3A of current. The SPI-8002TW also includes several protection features, such as current limit protection, under-voltage lockout protection, and frequency synchronization. This device is ideal for applications requiring reliable operation in harsh environment.

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