TPS75901KC

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TPS75901KC is a linear voltage regulator. It is a low-output-voltage, low-dropout, low-power-consumption linear regulator from Texas Instruments. The main function of this voltage regulator is to provide a stable voltage at a specific output level, even if input voltage fluctuates. The TPS75901KC is a single chip that provides the primary power-supply function of multiple linear-power-supply regulators for battery powered, highly integrated applications such as smartphones, portable devices, etc.

It features an input voltage range from 2.2 V to 6 V, and the output current capability up to 1.3 A with an output voltage of 0.6 to 6 V. The output voltage is adjustable with a typical accuracy of 2.5%, and has very low minimum power supply (PS) ripple-rejection ratio of 75 dB. The device also includes an on-chip 157 kHz Fixed-Frequency PWM (Pulse Widh Modulator) boost converter that provides 300 mA of charge current.

In addition, TPS75901KC offers overvoltage protection, reverse-battery protection, and thermal shutdown. With these features, the device will shut itself down before the supply voltage reaches dangerous levels, and protect against any potential damage to components. It also features a current-limits circuit, which is designed to limit the output current to a safe level.

The TPS75901KC linear voltage regulator is very easy to use and offers several advantages over traditional linear voltage regulators. It has an input voltage range from 2.2 to 6 V, an output voltage range from 0.6 to 6 V, and an output current up to 1.3 A. In addition, it has a low-quiescent current (1.4 mA) that helps to save energy and prolong battery life. It also has excellent performance in terms of line and load regulation and ripple rejection.

Moreover, the device offers a low dropout voltage of 350 mV, which means it can supply a significant amount of current at very low input voltages. This makes it very suitable for applications where the input power source is unstable or noisy. It also has great protection features, and is highly reliable, making it an ideal choice for a range of applications.

In terms of its application field, the TPS75901KC linear voltage regulator is primarily used to power mobile devices and embedded electronic products. It is suitable for powering components in a variety of waveform generation, current control, and signal conditioning applications. It is also commonly used in power management systems, automotive applications, and industrial battery management.

The working principle of the TPS75901KC is relatively simple. When the voltage at the output exceeds the set point, the integrated controller instructs the boost converter to reduce the input voltage, and when the output voltage falls below the set point, the converter is directed to increase the input voltage. This process continues until the output voltage returns to the set point. To ensure a stable output, the controller continuously monitors the output voltage of the regulator for any deviations and adjusts the input voltage accordingly.

In summary, the TPS75901KC linear voltage regulator from Texas Instruments is an efficient and reliable single-chip power solution for a variety of embedded systems and portable devices. With an input voltage range from 2.2 to 6 V, an output voltage range from 0.6 to 6 V, and an output current up to 1.3 A, the device is suited for battery-powered applications. It also offers a low quiescent current and has excellent performance in terms of line and load regulation and ripple rejection, making it a suitable choice for a wide range of applications.

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