TPS73125DBVR

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The TPS73125DBVR is a linear voltage regulator IC (PMIC) primarily designed for handheld product applications. It features a low-power quiescent current, a wide undervoltage lockout (UVLO) range, and a high-input voltage range up to 16V. The output voltage is adjustable from 1.3V to 13V, making it an ideal power management solution for general purpose handheld systems.

The device is built with precision voltage reference and a low-dropout regulator that is optimized for low-noise output voltage regulation. It also includes a wide range of protection features such as over-current protection (OCP), over-temperature protection (OTP), and shutdown capability. The TPS73125DBVR also includes an advanced circuit that further optimizes power dissipation. This helps reduce the power dissipation as well as thermal stress, resulting in a smaller and more efficient power management solution.

The TPS73125DBVR is aimed at handheld product applications, such as hand-held gaming consoles, personal digital assistant (PDA) devices, smartphones, and so on. The device can provide 1A of continuous output current with a dropout voltage of 300mV at an output voltage of 3.3V. It also features an enable/disable function, advanced current mode operation and adjustable transient response. In addition, it includes a peak current control and fast-Startup control systems.

The TPS73125DBVR works on the principle of linear regulation, which is based on using a linear power element connected between the output voltage and a Reference Voltage to regulate the output voltage. This linear power element can be a voltage regulator IC (VR IC), such as the TPS73125DBVR, or a linear regulator such as a zener diode. The linear regulator operates by comparing the output voltage to a reference voltage and adjusting the resistance in the linear element to reduce the output voltage to the reference voltage.

In the case of the TPS73125DBVR, the voltage reference is supplied by an internal bandgap reference. The output voltage is continuously compared to this reference, and the linear power element is adjusted accordingly. The linear power element then adjusts the output voltage to the reference after some settling time. This is known as the transient response time of the device.

The TPS73125DBVR is designed to provide excellent power conversion efficiency and low noise operation. It also features a thermal protection circuit that disconnects the output voltage if the chip temperature exceeds a certain threshold. The device is available in a tiny 7-pin DIP package, making it suitable for use in space-constrained applications.

The TPS73125DBVR is an ideal power management solution for handheld products due to its wide adjustable output voltage range, low power consumption, high-input voltage range, and low-noise operation. The device\'s wide input voltage range and optimized power dissipation help extend the battery life of these devices, while the ample protection features provide robust operation. The TPS73125DBVR\'s small package size also allows it to be used in very compact applications, making it an ideal solution for handheld products.

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