TPS81256SIPT

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The TPS81256SIPT is a highly efficient Digital Power System (DPS) point-of-load (POL) DC/DC switching regulator that is designed for use in applications requiring a low current, high performance DC to DC voltage regulator. It provides a wide range of output voltages from 2.2V to 12V, with a maximum input voltage of 5.5V. Additionally, it has an adjustable output current limit, adjustable switch frequency, enable/disable control, output voltage tracking, and a simple serial interface. It is an ideal solution for applications requiring an efficient, low power, and integrated solution.

The TPS81256SIPT features a high efficiency, proprietary constant-ON-time (COT) control scheme, which significantly reduces power losses compared to other switching regulators. Also, the load transient response is improved over traditional COT control with a fast transient response from 5% to 95%. Furthermore, the TPS81256SIPT has a high power factor, enabling operation from low voltage power sources.

The TPS81256SIPT features a burst mode operation to reduce the no-load input power and operate in an ultra-low power state. Furthermore, it allows for independent control of two output channels, which are adjustable via a single serial interface. This makes it an ideal solution for applications requiring multiple outputs with adjustable voltage and current levels.

The working principle of the TPS81256SIPT is based on a fixed-frequency, pulse-width modulation (PWM) control scheme. The IC uses a voltage mode control with its unique COT control architecture to regulate the output voltage and current. The output voltage and current are adjusted through the on-chip serial interface, which also provides feedback to the IC to regulate the output voltage and current. The IC is equipped with multiple protection features like over-voltage protection (OVP), under-voltage protection (UVP), and over-temperature protection (OTP) to protect the IC from fault conditions.

The TPS81256SIPT is an ideal choice for a wide range of DC/DC converter designs, including distributed power systems and various point-of-load systems that require multiple output voltages. It is well suited for notebook systems, servers, mobile computing, and embedded control systems that require an efficient, low power, and integrated solution.

With its high efficiency, low power consumption, and simple serial interface, the TPS81256SIPT is an ideal choice for applications requiring a highly efficient, low power, and integrated point-of-load DC/DC converter solution.

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