TPS65270RGET Integrated Circuits (ICs)

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The Texas Instruments TPS65270RGET is an integrated device that combines a DC/DC switching regulator, three LDO linear regulators, an I2C interface and a system level reset circuit into a single package. The device can operate as an isolated power supply regulator, providing 3.3 V, 5 V, and 12 V outputs in a variety of applications, ranging from communication and consumer peripherals to power supplies for industrial, medical and military systems.

The TPS65270RGET is designed to provide excellent output voltage accuracy, fast load transient response and low power output ripple with a single regulator that can accept a wide range of inputs from 3.0 V to 22 V. It has both a synchronous and asynchronous mode, allowing for flexible application design solutions.

The TPS65270RGET has a wide range of applications, from low-noise automotive systems to high-efficiency power-over-Ethernet applications. It works well in applications requiring isolated power supplies, providing excellent transient response and high efficiency, as well as for audio systems where ultra-low noise performance is critical. Because of its compact size and low power consumption, it is ideal for space-constrained designs.

The TPS65270RGET is a synchronous buck-type efficiency-optimized regulator. It regulates the output voltage according to the values programmed in the I2C interface, while consuming low quiescent current during no load or light load conditions. The I2C-based control allows the user to program a variety of output voltages, switching frequency, soft-start characteristics and protection functions.

The TPS65270RGET regulates the output voltage using a downstream buck regulator. The regulating loop consists of an internal error amplifier, an internal compensation network, an internal reference voltage and an output voltage sensing circuit. The loop compares the input and output voltages to regulate the output as programmed by the user in the I2C interface. The internal current limit monitoring circuit and fault protection protect the converter against overload, short-circuit and overtemperature conditions.

The TPS65270RGET is also compatible with multiple power converters, including synchronous rectifier-based bridges, buck controllers and low-cost linear regulators. The integrated bypass capacitors, harmonic rejection circuitry and output feedforward compensation network reduce output ripple and optimize transient response for fast load steps. The TPS65270RGET is designed to limit the amount of current drawn from the input voltage source, providing protection in case of reversed power polarity.

The TPS65270RGET is an integrated and cost-effective solution for high-efficiency power supplies, providing output voltage accuracy, fast load transient response and low output ripple. Its wide range of applications and feature set make it a good choice for many power applications.

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