TPS71728DSER

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The Texas Instruments TPS71728DSER Linear Voltage Regulator is a high-performance, low-Iq, low-dropout (LDO) regulator with an operating input voltage range of 0.8 V to 6.0 V and adjustable output voltage range of 0.8 V to 5.5 V. The TPS71728DSER offers a quiescent current of only 25 μA, which is the lowest quiescent current of any low-dropout regulator in its class. It provides an accurate output voltage and fast transient response, enabling a tight output voltage tolerance of ± 1%. The TPS71728DSER is designed for portable applications and is easily adjusted for customization with a resistor divider. This regulator is widely used in portable, battery-operated and automotive applications.

The TPS71728DSER can be used in a wide range of application fields including automotive and telecommunication systems, portable electronics and digital audio/video applications. Automotive applications include those that require power management such as car navigation system, digital audio systems, and control systems. In telecommunication systems, the TPS71728DSER can be used for Ethernet servers, softswitches and managed routers. In portable electronics, it can be used for laptops, tablets, cell phones and other portable electronic devices.

The working principle of the TPS71728DSER is based on linear low-dropout (LDO) regulation, a popular method of delivering a regulated and stable output voltage while minimizing the dropout voltage. The TPS71728DSER has an on-chip Difference Amplifier that senses the voltage across a low-value resistor divider. This sense resistor ratio sets the output voltage of the regulator which is proportional to the input voltage. The input voltage is then compared to a regulated reference voltage, and the difference is used to adjust the gate of an on-chip FET to regulate the output. The regulation is accomplished by varying the external sense resistor ratio to adjust the output voltage.

The TPS71728DSER is a high-performance, low-Iq, low-dropout regulator, offering an input voltage range of 0.8 V to 6.0 V and output adjustable range of 0.8 V to 5.5 V. It has a quiescent current of only 25 μA and an accurate output voltage with fast transient response and tight output voltage tolerance of ± 1%. The TPS71728DSER is ideal for use in automotive, telecommunication and portable electronic applications. With its linear low drop-out circuit design, it provides reliable and low noise power solution. This regulator is easy to customize with a resistor divider, providing an efficient mechanism for controlling the output voltage.

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