LM317D2TG

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LM317D2TG

IC REG LIN POS ADJ 1.5A D2PAK-3

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規格

Package Tube
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
Current-Quiescent(Iq) 10 mA
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

概述

Description

The LM317D2TG is a popular adjustable voltage regulator, designed to regulate voltage in electronic circuits. It is part of the LM317 series, which offers a versatile solution for providing a stable output voltage. The device can deliver an output voltage range of 1.25V to 37V, with a current output up to 1.5A. It is commonly used in power supply applications due to its reliability and ease of use.
Key features of the LM317D2TG include a thermal overload protection, current limiting, and safe-area compensation, which enhance its durability and safety during operation. The device requires only two external resistors to set the output voltage, making it simple to implement in various applications.
Packaged in a TO-263 surface mount, the LM317D2TG is suitable for applications where space is a constraint. Additionally, it provides excellent line and load regulation, typically maintaining 0.01%/V and 0.1% respectively, ensuring consistent performance across different operating conditions.
Overall, the LM317D2TG is a cost-effective and efficient solution for adjustable voltage regulation in a wide range of electronic circuits.

Features

The LM317D2TG is a versatile adjustable voltage regulator designed for a wide range of applications. Key features include:
1. Adjustable Output Voltage: It provides an output voltage range of 1.25V to 37V with a continuous output current of up to 1.5A.
2. Thermal Overload Protection: The device includes built-in thermal overload protection, which prevents the regulator from overheating and ensures reliable operation.
3. Current Limiting: It features current limiting which protects the device against short circuits and excessive load current.
4. Safe Operating Area Protection: This feature ensures that the device operates safely under all conditions, preventing damage.
5. High Ripple Rejection: With high ripple rejection, the LM317D2TG offers stable output voltage even with fluctuations in the input voltage.
6. Easy to Use: It requires only two external resistors to set the output voltage, simplifying design.
7. Available Packages: The LM317D2TG is available in TO-220, D2PAK, and other packages, accommodating various thermal and space requirements.
These features make the LM317D2TG suitable for power supplies, battery chargers, and other applications where a stable and adjustable output voltage is needed.

Package

The LM317D2TG is a voltage regulator with an adjustable output, often used in power supplies. It comes in a D²PAK (TO-263) surface-mount package, which allows for efficient heat dissipation and is suitable for high power applications.

Pinout

The LM317D2TG is a voltage regulator with a 3-pin configuration. It is designed to provide a stable output voltage, adjustable from 1.25V to 37V, with an output current capability of up to 1.5A. The three pins of the LM317D2TG are as follows:
1. Input (Vin): This pin receives the unregulated input voltage. It should be higher than the desired output voltage by a margin sufficient to maintain regulation.
2. Output (Vout): This pin supplies the regulated output voltage. The output voltage can be adjusted using two external resistors connected between the output pin, adjust pin, and ground.
3. Adjust (Adj): This pin is used to adjust the output voltage. By creating a voltage divider network with external resistors, you can set the desired output voltage.
The LM317D2TG is commonly used in power supply circuits due to its versatility, ease of use, and ability to maintain a constant output voltage despite fluctuations in input voltage or output load conditions.

Manufacturer

The LM317D2TG is manufactured by ON Semiconductor. ON Semiconductor, now known as onsemi, is a leading supplier of semiconductor-based solutions. It provides a broad portfolio of energy-efficient power and signal management, logic, standard, and custom devices. These solutions are used in various applications across multiple industries, including automotive, industrial, cloud power, and the Internet of Things (IoT). The company is known for its focus on energy efficiency and sustainability, aiming to drive innovation in electronic systems.

Application

The LM317D2TG is a versatile voltage regulator used in various applications, including power supply design, adjustable power supplies, battery chargers, and LED drivers. It is ideal for providing a stable output voltage in electronic devices, computers, and communication equipment. Its adjustable output makes it suitable for use in test equipment and custom power solutions where precise voltage control is essential.

Equivalent

The LM317D2TG is a voltage regulator, and its equivalent products include LM317 series regulators from other manufacturers, such as the LM317T, LM317K, or LM317L by Texas Instruments, STMicroelectronics, or Fairchild/ON Semiconductor. These equivalents provide similar adjustable output voltage and current characteristics. Always check the datasheets to ensure compatibility in terms of pin configuration, thermal characteristics, and package type.

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