LM317D2T-TR

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LM317D2T-TR

+БОМ

IC REG LINEAR POS ADJ 1.5A D2PAK

  • ПроизводительSTМикроэлектроника

  • Мфр. Часть #LM317D2T-TR

  • Лист данных LM317D2T-TR DataSheet

  • Пакет TO-263-3

  • В наличии6729

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Спецификации

Атрибут Ценность
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputConfiguration Positive
OutputType Adjustable
NumberofRegulators 1
Voltage-Input(Max) 40V
Voltage-Output(Min/Fixed) 1.2V
Voltage-Output(Max) 37V
Current-Output 1.5A
PSRR 80dB ~ 65dB (120Hz)
ProtectionFeatures Over Current, Over Temperature, Short Circuit
OperatingTemperature 0°C ~ 125°C
MountingType Surface Mount
Package/Case TO-263-3, D²Pak (2 Leads + Tab), TO-263AB

Обзор

Description

The LM317D2T-TR is a popular adjustable voltage regulator IC used in various electronic applications to provide a stable output voltage. Manufactured by STMicroelectronics, the device is part of the LM317 series, known for its versatility, ease of use, and reliability. It can supply output voltages ranging from 1.25V to 37V, with a maximum output current of 1.5A, making it suitable for a wide range of applications.
This regulator features internal current limiting, thermal overload protection, and safe area compensation, enhancing its robustness and reliability. The "D2T" in its name indicates its D-Pak surface-mount packaging, which is compact and suitable for modern PCB designs.
The LM317D2T-TR requires only two external resistors to set the output voltage, simplifying circuit design. Its low dropout voltage, typically around 2V, allows it to operate efficiently with small input-output voltage differentials. Common applications include power supplies, battery chargers, and current regulators. This component is favored for its balance of performance, cost, and ease of implementation in both consumer and industrial electronic projects.

Equivalent

The LM317D2T-TR is a voltage regulator. Equivalent products include the LM317 series from various manufacturers, such as the LM317T by Texas Instruments, LM317T by ON Semiconductor, and LM317 by STMicroelectronics. These devices offer similar three-terminal adjustable output and current limiting features. Always verify specific requirements like package type and thermal characteristics to ensure compatibility.

Features

The LM317D2T-TR is a versatile, adjustable three-terminal voltage regulator. Key features include:
1. Adjustable Output Voltage: It provides an output voltage range of 1.25V to 37V, allowing for precise voltage regulation.
2. Output Current: It can deliver output currents up to 1.5A.
3. Thermal Regulation: Equipped with over-temperature protection to prevent damage from overheating.
4. Current Limiting: Offers inherent current limiting for safe operation under overload conditions.
5. Load Regulation: Provides excellent load regulation, ensuring stable output voltage despite varying load conditions.
6. Line Regulation: Exhibits good line regulation, maintaining output stability even with input voltage fluctuations.
7. Dropout Voltage: Features a low dropout voltage, typically 3V, enhancing efficiency.
8. Package Type: Available in a D2PAK surface-mount package, suitable for compact designs.
9. Reliability: Known for robustness and reliability in various applications, from power supplies to embedded systems.
These features make the LM317D2T-TR a popular choice for adjustable power supply designs and other electronic applications requiring stable voltage regulation.

Pinout

The LM317D2T-TR is a three-terminal adjustable voltage regulator with a pin count of three. Its primary function is to provide a stable output voltage that can be adjusted over a range, typically from 1.25V to 37V, using external resistors.
The three pins are as follows:
1. Input (IN): This pin receives the unregulated input voltage which needs to be regulated.
2. Output (OUT): This pin provides the regulated output voltage.
3. Adjustment (ADJ): This pin is used to adjust the output voltage. By connecting a resistor between this pin and the output pin, and another resistor from this pin to ground, the output voltage can be set to the desired level.
The LM317 is widely used for its versatility and ease of use in various applications requiring a regulated voltage output.

Manufacturer

The LM317D2T-TR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. Founded in 1987 through the merger of SGS Microelettronica of Italy and Thomson Semiconducteurs of France, the company is headquartered in Geneva, Switzerland. STMicroelectronics is known for its diverse product portfolio, which includes integrated circuits and discrete devices used in a variety of applications such as automotive, industrial, personal electronics, and communication equipment. The company focuses on innovation and sustainability, contributing to advancements in technology across multiple sectors.

Application

The LM317D2T-TR is a versatile voltage regulator commonly used in various applications. It is often utilized in power supply circuits to provide a stable output voltage from a higher input voltage. Key application areas include adjustable power supplies, battery chargers, and voltage regulation for electronic devices. It is suitable for use in telecommunications, industrial automation, consumer electronics, and automotive electronics. Its ability to provide a wide range of output voltages and handle moderate current levels makes it ideal for use in prototyping and development projects where flexibility and reliability are essential.

Package

The LM317D2T-TR is a voltage regulator integrated circuit packaged in a D2PAK (TO-263) form. This surface-mount package offers a balance of thermal performance and size, suitable for high-power applications, ensuring efficient heat dissipation.

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