TPS7325QPW

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TPS7325QPW Application Field and Working Principle

The TPS7325QPW is a family of linear voltage regulators with a wide range of applications in the consumer electronics industry, specifically in the design of power supply systems. It is a linear regulator with a 5-amp output capacity and a maximum input voltage of 7.3V. The TPS7325QPW is capable of up to 1.25A continuous load current and has an adjustable output voltage range of 0.48V to 3.3V. The TPS7325QPW family of devices target applications such as embedded systems, battery-powered systems, and low voltage converters.

Features of TPS7325QPW

• Wide input voltage range: 2.5V - 7.3V
• High output current: 1.25A (max)
• Adjustable output voltage: 0.48V - 3.3V
• Low quiescent current: 105 μA (typ)
• High PSRR: 75 dB (typ) @ 1kHz
• Low output noise: 55 μV (typ)
• Thermal shutdown protection

Typical Application

The TPS7325QPW can be used in conjunction with a host processor, providing digital power management and control of the application voltage. The typical application circuit of the TPS7325QPW is shown below:

Working Principle

The TPS7325QPW is a linear regulator, which operates by setting a reference voltage, and comparing the output voltage to the reference voltage. When the output voltage is greater than the reference voltage, the regulator will reduce the output voltage until the voltage is equal to the reference voltage. The linear regulator also uses a feedback loop, which monitors the output voltage and adjusts the output voltage if it is not equal to the reference voltage.

The TPS7325QPW includes a high-side power switch, which controls the flow of current, and a series of small transistors, which control the voltage and current. The high-side switch controls the flow of current through the small transistors, while the transistors control the voltage and current. The transistors control the output voltage by turning on or off, depending on the output voltage of the regulator.

The TPS7325QPW also includes a series of comparators, which monitor the output voltage of the regulator, and an error amplifier, which compares the output voltage to the reference voltage. The error amplifier compares the output voltage to the reference voltage, and adjusts the output voltage if it is not equal to the reference voltage. This allows the TPS7325QPW to maintain a stable output voltage regardless of changes in input voltage.

Conclusion

The TPS7325QPW is a linear voltage regulator, with a wide range of applications in the consumer electronics industry. The device is capable of providing up to 1.25A of continuous load current and an adjustable output voltage range of 0.48V to 3.3V. The device is also equipped with a thermal shutdown protection, high PSRR and low output noise. With its many features and benefits, the TPS7325QPW is an ideal choice for power supply systems.

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