TPS71025P

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The TPS71025P is a linear voltage regulator manufactured by Texas Instruments. It is a type of PMIC (Power Management Integrated Circuit) and belongs to the voltage regulator family. This device is capable of providing up to 25A of load current with excellent load and line regulation, high efficiency, and low ground current. In addition, the device is designed to operate from an input voltage range of 4.5V to 30V while maintaining its regulated output voltage. It also has thermal overload protection, undervoltage lockout, and output current limiting.

In terms of its application field, the TPS71025P is typically used in automotive, industrial, power supply, and consumer applications. Two of its most common applications include energy storage systems, such as electric vehicles and batteries, and precision current regulation for automotive power systems. It can also be used for powering high current DC load strips, CNC machines, medical equipment, industrial valves, and more.

Now, let’s discuss the working principle of the TPS71025P.The device contains two inner blocks, the error amplifier and PWM controller. The error amplifier compares the input signal to a reference voltage and then generates an analogous output to adjust the duty cycle of the PWM pulses. This effectively converts the difference between the input signal and reference into an equivalent PWM duty cycle.

The PWM controller is responsible for generating a pulse width modulated signal. The signal is generated based on the duty cycle set by the error amplifier and is then sent to the output stage. The output stage houses the power devices and their respective gate drivers. This component connected to the gate terminal provides a gate current to the power device, which consequently switches the device on or off. The power device controls the current flow based on the duty cycle of the PWM signal, which is set by the error amplifier.

The TPS71025P is an excellent choice for many applications that require linear voltage and current regulation. It is highly efficient, provides excellent load and line regulation, and features a wide input voltage range. It is perfect for powering high-current DC loads, precision current regulation for automotive, energy storage systems and more.

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