TPS53319DQPR Integrated Circuits (ICs)

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The TPS53319DQPR family from Texas Instruments is a 60V step-down DC/DC switching regulator designed for high switching frequency and high current load applications. It is a synchronous buck regulator that provides optimised solutions for space-constrained applications. This regulator operates with a 4.5V to 60V input voltage range and has a programmable switching frequency range of 250 kHz to 2.4 MHz for various applications. It also comes with additional features such as I2C interface for communication, adjustable soft-start control, dynamic voltage scaling, and integrated gate drivers with shoot through protection.

The TPS53319DQPR family offers continuous output current up to 20A and is capable of delivering up to 10A in an 8-lead WQFN package. It is optimized for operation with tiny ceramic input and output capacitors, reducing solution size and power losses. It also features a high-efficiency switching architecture and current mode control with self-compensation, resulting in fast transient response. An integrated overvoltage protection function with adjustable threshold ensures that the output will not exceed a safe level.

The TPS53319DQPR is available in an 8-lead WQFN package, offering a small footprint for high-density circuit assembly. It is targeted for use in a wide range of applications, including computing, consumer, industrial, automotive, and personal electronics.

The operating principle of the TPS53319DQPR regulator is based on a synchronous buck topology. It consists of an upper MOSFET, a lower MOSFET, a feedback loop, a control block and a PWM oscillator. When an input voltage is applied, the control block will adjust the PWM duty cycle to maintain the output voltage within its specified range. The PWM signal will then be used to control the gates of the MOSFETs, allowing or blocking the current flow. The control block operates in current mode control with self-compensation, which ensures fast transient response.

In summary, the TPS53319DQPR is a high-performing buck switching regulator suitable for applications requiring high switching frequency, high current load and a small footprint. It features a wide range of features such as I2C interface, adjustable soft-start control, dynamic voltage scaling, and integrated gate drivers with shoot through protection, making it a versatile choice for customers in need of a regulator for their system.

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