LM217D2T

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LM217D2T is a popular 3-terminal adjustable negative regulator from the group of Voltage Regulators in Power Management ICs. It is what is known as a “Linear” voltage regulator type. It can supply negative output voltages of -1.2V to -37V, from input voltages of up to 38V.

Depending on the current demand for the application, the LM217D2T power monitoring IC has an adjustable current output range from 0.1A to 1.5A. In addition to high current outputs, it also has excellent power dissipation performance, which allows the user to reach lower thermal junction temperature while maintaining superior thermal control.

LM217D2T is designed with a wide operating temperature range of -40°C to 125°C (-40°F to +257°F). It is capable of delivering a wide variety of output voltages due to its versatility in external components and a large range of adjustment. The LM217D2T linear voltage regulator also features a wide range of features such as adjustable slew rate, output transition time, voltage and current feedback, as well as adjustable over-voltage/current protection.

The LM217D2T can be used in numerous applications including power management in automotive, computer and consumer electronics, communications equipment, handheld electronic devices, and industrial equipment. One key benefit of this regulator is its wide range of applications due to its small form factor. In addition, its high-performance power regulation and temperature protection features ensure long-term reliability and robust operation.

The LM217D2T is a type of Adjustable Negative Linear Regulator, which employs a built-in 3-terminal regulator and adjustable voltage and current feedback circuits. The power regulating circuit consists of an external pass transistor, an adjustable reference and feedback networks, as well as a series feed-back connection to the external pass transistor. The feedback connections from the reference and feedback networks to the output voltage are used to regulate the output voltage.

When the output voltage drops below the set level, the feedback network closes the LED emission unit and starts to allow current to flow through the pass transistor. This increases the output voltage and prevents the power supply from entering protection mode due to the increased demand from the load. This cycle will continue until the output voltage reaches an equilibrium. When the load is reduced, the feedback network will open up and the current will stop flowing through the pass transistor, resulting in the decrease of the output voltage to its original level.

In conclusion, the LM217D2T is a versatile, adjustable negative linear regulator that is suitable for a wide variety of applications. Its wide operating temperature range, adjustable features, and small form factor make it an ideal choice for power management in automotive, computer, communications, handheld electronics, and industrial applications. In addition, its voltage and current feedback circuits ensure long-term reliability and robust operation.

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