LM317LD13TR Integrated Circuits (ICs)

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LM317LD13TR is a type of 3-terminal adjustable regulator and is designed to provide an OUTPUT current limiting and thermal shutdown. It is a member of the LM317 family of voltage regulators and is typically packaged in a TO-263 package.

The LM317LD13TR has a wide operating range and is designed to operate over a wide input voltage range of 2.5V to 40V with a maximum operating current of 300mA. As the output voltage is adjustable with the addition of a resistor, its output voltage can be set from 2.5V to 37V. The LM317LD13TR also has a high current limiting and thermal overload protection.

The LM317LD13TR is most often used for three main applications: providing regulated voltage for consumer electronics, power supplies, and microcontroller-based designs. It is also used for other applications such as charge pumps, digitally-controlled power supplies, linear regulators and battery chargers.

The LM317LD13TR application field and working principle can be divided into: Output voltage regulation and voltage regulation temperature control.

Output Voltage Regulation

To set the output voltage on the LM317LD13TR, a resistor must be connected between the output voltage pin and the adjustment terminal. This resistor sets the current through the resistor that sets the output voltage. The regulator monitors the output voltage and adjusts the current to keep it constant. The output voltage can be adjusted from 2.5V to 37V by changing the resistor value.

Voltage Regulation Temperature Control

The LM317LD13TR has an internal current and temperature protection feature. The regulator senses the temperature of the device and automatically shuts down the output if it exceeds the rated value. This is to protect the device from damage and to ensure it is operated within its specified limits. The regulator also limits the output current to a maximum of 300mA, which can be adjusted using the resistor at the output voltage pin.

Conclusion

The LM317LD13TR is a three-terminal adjustable regulator that is capable of providing an OUTPUT current limiting and thermal shutdown feature. It is used for providing regulated voltage for consumer electronics, power supplies, and microcontroller-based designs as well as other applications. It has a wide operating range and a wide input voltage range of 2.5V to 40V. The output voltage can be adjusted from 2.5V to 37V by changing the resistor value and the internal current and temperature protection feature prevents the device from damage.

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