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PMIC – Voltage Regulators – Linear

The TPS75425QPWP is a high-efficiency, low-power DC/DC voltage regulator optimized for core powering of microprocessors and high-performance FPGAs. It is designed for low electric noise, small size, and low power requirements. This device is integrated with two I2C output ports, providing two individual current regulated outputs for two independent processors. The TPS75425QPWP is capable of supplying up to 1.0A of output current and is designed to operate from 3.3V to 5.75V input voltage range.

Application

In many advanced systems, TPS75425QPWP is used as the main core powering device. Its ultra-low dropout voltage, low noise and high efficiency makes it an ideal choice for processor core powering applications. It can be used in the most stringent, extremely noise-sensitive applications like set-top boxes and digital video recorders. It is also used in many other applications like telecommunications, computing, graphics, and networking.

Working Principle

The TPS75425QPWP incorporates a high-efficiency, low-power linear voltage regulator, which is capable of delivering up to 1.0A of output current per output. The device is designed to reduce power consumption and improve power supply design flexibility. The device consists of two main components: an internal voltage reference and MOSFET pass element. The MOSFET pass element quickly switches a large current to create a low voltage drop across the device. The voltage reference is used to maintain and/or regulate the output voltage. The TPS75425QPWP is designed with an adjustable soft start feature, which helps to reduce inrush current and minimize generated noise during startup by gradually increasing the output voltage. The device can be enabled/disabled through an EN pin or via the I2C interface. Additionally, the device can be configured through the I2C interface to regulate the voltage level of multiple channels.

Conclusion

The TPS75425QPWP is a high-efficiency, low-power DC/DC voltage regulator, optimized for core powering of microprocessors and high-performance FPGAs. It is designed for low electric noise, small size, and low power requirements. It includes an internal voltage reference and MOSFET pass element, and can be enabled/disabled through an EN pin or via the I2C interface. It can supply up to 1.0A of output current and can be used for processor core powering applications in a variety of environments.

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