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LM217T

Name: LM217T
Rating: 4.7 (12 reviews)

IC REG LINEAR POS ADJ 1.5A TO220

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Mfr。パート #LM217T
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仕様

Part Status	Active
Output Configuration	Positive
Output Type	Adjustable
Number of Regulators	1
Voltage - Input (Max)	40V
Voltage - Output (Min/Fixed)	1.2V
Voltage - Output (Max)	37V
Current - Output	1.5A
PSRR	80dB ~ 65dB (120Hz)
Protection Features	Over Current, Over Temperature
Operating Temperature	-25°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3
Supplier Device Package	TO-220
Base Product Number	LM217

概要

Description

LM217T is a voltage regulator integrated circuit (IC) designed to provide stable output voltage across varying input voltages and load conditions. It typically offers a fixed output voltage of 5V, with a maximum output current of 1.5A. The LM217T features thermal overload protection and short-circuit protection, making it reliable for various applications, including power supplies for electronic devices and circuits.
The IC operates with a wide input voltage range, typically from 8V to 40V, and maintains regulation even under significant load changes. Its low dropout voltage allows it to function effectively in battery-powered devices, ensuring efficient power management. The LM217T is commonly used in consumer electronics, automotive systems, and industrial applications due to its versatility, affordability, and ease of integration into existing designs.
Overall, the LM217T is an essential component for engineers and hobbyists looking for a dependable voltage regulation solution in their projects.

Features

The LM217T is a versatile adjustable voltage regulator widely used in electronic circuits. Key features include:
1. Adjustable Output Voltage: Provides an output voltage range from 1.25V to 37V, making it suitable for various applications.
2. Current Rating: Capable of supplying up to 1.5A of output current, sufficient for many low to medium power applications.
3. Thermal Overload Protection: Integrated thermal shutdown prevents damage due to overheating.
4. Short-Circuit Protection: Ensures reliability by limiting output current in case of a short circuit.
5. Low Dropout Voltage: Features a low dropout voltage, allowing it to maintain regulation even with minimal input-output voltage difference.
6. Wide Input Voltage Range: Accepts input voltages between 3V and 40V, adding flexibility in circuit design.
7. TO-220 Package: Available in a TO-220 package, making it easy to mount and dissipate heat.
These features make the LM217T ideal for power supply circuits, battery chargers, and various electronic projects.

Package

The LM217T is available in a TO-220 package type. This package features a metal tab for enhanced heat dissipation, making it suitable for applications requiring efficient thermal management.

Pinout

The LM217T is a voltage regulator with a pin count of 3. Its functions are as follows:
1. Input (Pin 1): This pin connects to the input voltage source. It typically accepts voltages up to 40V.
2. Output (Pin 2): This pin provides the regulated output voltage, which can be set between 1.25V and 37V using external resistors.
3. Adjust (Pin 3): This pin is used to adjust the output voltage. By connecting a voltage divider network (composed of resistors) between the output and ground, the desired output voltage can be achieved.
The LM217T is commonly used in power supply applications, providing stable voltage regulation with good load and line regulation characteristics.

Manufacturer

The LM217T is a voltage regulator manufactured by Texas Instruments (TI), a leading semiconductor company. Founded in 1951, Texas Instruments designs and produces a wide range of electronic components, including analog and digital semiconductors, embedded processors, and various integrated circuits. The company serves multiple industries, including automotive, industrial, communications, and consumer electronics. TI is known for its innovation in analog technology, signal processing, and embedded processing, making it a key player in the global electronics market.

Application

The LM217T is a voltage regulator commonly used in power supply applications. Its main areas include adjustable voltage regulation for electronic circuits, battery chargers, and LED drivers. It is also utilized in instrumentation, automotive electronics, and telecommunications for providing stable output voltages. Additionally, it serves in power management systems and can be found in consumer electronics for improving efficiency and reliability.

Equivalent

The LM217T voltage regulator has several equivalents, including the LM317 (standard adjustable version), LM1117 (low dropout variant), and LT1085 (from Linear Technology). For fixed output options, consider the LM7805 (5V output) or LM7808 (8V output) for specific voltage needs. Always verify datasheets for compatibility and specifications.