TPS73501DRBT Integrated Circuits (ICs)

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TPS73501DRBT, a linear regulator, is a low-dropout (LDO) voltage regulator provides ultra-low quiescent current for battery-powered applications. This regulator features an ultralow quiescent current of 1uA in most application conditions. It also features a low dropout voltage of 100mV at 0.5A.The TPS73501DRBT has wide input voltage range from 2.7V to 10V, and an output voltage range from 0.8V to 10V. Its wide input voltage and output voltage range make it a perfect match for the latest low power microcontrollers, FPGAs, DSP, and other digital logic circuits.

The TPS73501DRBT Linear regulator utilizes a Bipolar PNP-based feedback control architecture that provides higher control loop gain and superior transient response than traditional linear regulators. It also provides over-current and thermal protection, making it suitable for use in harsh application environments. In addition, the TPS73501DRBT has an external output enable pin that allows control of the regulator output state from an external source. This makes it possible for a board design to power down the regulator for system power savings.

TPS73501DRBT, with its instantaneous current-limit, over-current protection capability, and low quiescent current, makes it ideal for use in battery-powered applications. It can also be used to power the latest low power microcontrollers, FPGAs, DSP, and other digital logic circuits. This regulator is designed to provide high accuracy, low transient response times, and low quiescent current, making it well suited for applications requiring high performance and battery life savings.

The application field of TPS73501DRBT is widely in consumer, industrial and medical electronics. The consumer electronic applications it can be used for including portable media device, music and video player, wireless charging systems, laptop, tablet PC and portable game device. The industrial applications include small voltage supply, automotive and industrial communication systems and motors. In medical applications, it is widely used in patient monitors, therapeutic audio/speech treatment device and other handheld medical devices.

The working principle of TPS73501DRBT is based on a Bipolar PNP-based feedback control architecture. First, the reference voltage of the device is set through the external resistor, and the input voltage and output voltage are applied to the two ports of the device. When the output voltage is lower than the reference voltage, the regulator will increase the output voltage until the output voltage reaches the reference voltage. Then the voltage difference between the input voltage and the output voltage produces a voltage drop across the internal voltage divider, which will turn on the base terminal of the PNP transistor. The collector of the transistor will then provide a current through an internal load which will raise the output voltage to the reference voltage.

Once the output voltage reaches the reference voltage, the voltage difference between the input voltage and output voltage is reduced, which will cause the base current to reduce. As a result, the collector current will decrease and the output voltage will be regulated to a constant output voltage.

The TPS73501DRBT Linear Regulator is an excellent choice for providing ultra-low quiescent current for battery-powered applications, and offers wide input voltage and output voltage range, over-current and thermal protection, and an external output enable pin. It is suitable for use in consumer, industrial and medical electronics, making it a versatile solution for a variety of applications.

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