LD1117ADT25TR

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LD1117ADT-25TR is an adjustable three-terminal positive voltage regulator that is designed to provide adjustable output voltage at currents up to 100 mA. It\'s a low-dropout linear regulator that offers a maximum dropout voltage of 600 mV at 100 mA of output current, making it highly efficient and suitable for cost-sensitive applications. It provides up to 500 mA of output current with the optional external heat sinking.

The LD1117ADT-25TR is ideal for applications where input voltage can vary considerably or when transients or load changes occur, such as battery-powered portable equipment, automotive systems and power converters. It can also be used in mixed signal applications requiring advanced standby/power modes.

The output voltage is adjustable (Vref) up to 25 Volts. The regulation is based on a primary-side control of the switching regulator, using a voltage feedback circuit for reference, which offers excellent line and load regulation. Additionally, a precision reference bandgap circuit ensures stability of the device.

The internally trimmed amplifier control circuit minimizes the number of external components by allowing a wide range of loads, making the LD1117ADT-25TR ideal for various power management applications. In addition, it features a low quiescent current of 3.2 mA, making it highly power-efficient.

The LD1117ADT-25TR\'s over-current protection (OCP) feature provides short-circuit protection by ramping down the output current gradually or disconnecting the output when the output current exceeds the preset value. It also has an over-voltage protection (OVP) feature that shuts down the device when the output voltage exceeds a preset level — making it an ideal choice for hot-plugging applications.

In summary, the LD1117ADT-25TR is a versatile, high efficiency, cost-optimized regulator with a wide input voltage range and adjustable output voltage. It is suitable for powering various digital systems, automotive systems and portable equipment, and for mixed signal applications requiring advanced standby/power modes.

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