LM317KCT

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Linear Voltage Regulators (LDOs) are a type of power supply regulator, used to maintain a constant output voltage. LM317KCT, a member of the LM317 voltage regulator family, is a highly efficient, small footprint linear regulator fabricated using a process creating a power-on reset characteristic. It offers a wide output voltage range and current limit capability, while still providing excellent ripple rejection.

The LM317KCT offers a cost-effective, compact solution for applications where a 3-terminal voltage regulator is needed. The device\'s power-on reset characteristics ensure reliable start-up under all temperature and voltage conditions, resulting in smooth power supply operation.

The LM317KCT is designed to provide a constant output voltage from an input voltage as high as 40V, down to a low of 1.5V. It also integrates a current limiting circuitry, output short-circuit protection, thermal overload protection, and is designed to ensure immediate response time for regulation and for recovery from short-circuits.

The LM317KCT is capable of supplying up to 1.5A of output current, making it well suited for low-current applications. The device’s operating junction temperature can be as high as +150°C. It features a wide operating temperature range of -40°C to +125°C.

LM317KCT offers high energy efficiency, with a maximum efficiency of 97 percent across a wide input voltage range. This makes it well suited for low-power applications, such as medical and industrial grade applications where energy efficiency and operational stability are critical.

The LM317KCT is well suited for applications requiring an adjustable output voltage for small batteries, laser diode drivers, electric heating systems, and other low-current applications. It is capable of providing a variable output voltage from 1.5 to 40V, with a high degree of accuracy.

The LM317KCT\'s working principle is based on a basic voltage regulating circuit where an Op-Amp is used to sense the output voltage, and a feedback loop is then used to adjust the gain of the transistor for regulation. By varying the adjustment voltage, the output voltage can be set to any desired level.

The LM317KCT also includes two temperature protection features. The first is an over temperature shut-down feature, which prevents the device from operating above its specified rating. The second is a thermal sensing circuit, which will shut the device down if the internal temperature exceeds the maximum junction temperature.

The LM317KCT is a highly efficient, cost-effective, and compact 3-terminal linear regulator. It offers a wide input voltage range, adjustable output voltage, and current limit capability. It also has specific features such as a power-on reset, thermal overload protection, and temperature protection. The device is suitable for applications where superior performance and stability are required.

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