LM317LMX

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LM317LMX

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IC REG LIN POS ADJ 100MA 8SOIC

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  • Ông. Phần #LM317LMX

  • Gói SOIC (D)-8

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Thông số kỹ thuật

thuộc tính Giá trị
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Obsolete
OutputConfiguration Positive
OutputType Adjustable
NumberofRegulators 1
Voltage-Input(Max) 40V
Voltage-Output(Min/Fixed) 1.2V
Voltage-Output(Max) 37V
Current-Output 100mA
PSRR 80dB (120Hz)
ProtectionFeatures Over Current, Over Temperature, Short Circuit
OperatingTemperature 0°C ~ 125°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Tổng quan

Description

The LM317LMX is a versatile, adjustable voltage regulator capable of supplying between 1.25 and 37 volts with a current output of up to 100 mA. It is part of the LM317 series, which is known for providing precise voltage regulation through a simple three-terminal design. The device is primarily used in electronic circuits to provide stable power, replacing multiple fixed-voltage regulators with a single component.
Key features include thermal overload protection, a safe operating area, and current limiting, ensuring reliable performance under various operating conditions. The LM317LMX requires only two external resistors to set the output voltage, making it user-friendly and adaptable for various applications, such as power supplies, battery chargers, and LED drivers. Its TO-252 (DPAK) package is suitable for surface-mount applications, making it ideal for compact and portable device designs. The LM317LMX provides an efficient solution for engineers and hobbyists looking to manage different voltage levels within a circuit efficiently.

Equivalent

The LM317LMX is a three-terminal adjustable voltage regulator. Equivalent products include:
1. LM317T
2. L78S
3. L78XX (for fixed voltages)
4. UA78XX (for fixed voltages)
5. TL783 (for higher voltage applications)
These alternatives offer similar functionality, with variations in packaging, output current, and voltage specifications. Always check the specific datasheets to ensure compatibility with your application requirements.

Features

The LM317LMX is a versatile, adjustable three-terminal voltage regulator. Key features include:
1. Adjustable Output Voltage: Output voltage can be set from 1.25V to 37V, allowing for flexibility in various applications.
2. Output Current: Capable of providing output currents in excess of 100 mA, making it suitable for many power supply needs.
3. Line and Load Regulation: Exhibits excellent line and load regulation characteristics to ensure stable output even with varying input or load conditions.
4. Thermal Overload Protection: Includes built-in protection against overheating, ensuring longevity and reliability.
5. Short-circuit Protection: Protects against damage due to output short circuits.
6. Current Limiting: Automatically limits the output current to prevent excessive current draw, enhancing safety.
7. Safe Operating Area Protection: Ensures device operates within safe limits under all conditions.
8. Wide Temperature Range: Designed to operate over a wide temperature range, making it suitable for various environments.
Overall, the LM317LMX is a reliable solution for adjustable voltage regulation in multiple electronic applications.

Pinout

The LM317LMX is a three-pin adjustable voltage regulator. Its pin count and functions are as follows:
1. Input (Pin 1): This pin receives the unregulated input voltage that needs to be regulated down.
2. Output (Pin 2): The regulator provides the regulated output voltage at this pin. The output voltage can be adjusted by changing the resistance values connected to the adjacent pins.
3. Adjust (Pin 3): This pin is used to set the output voltage through an external resistor divider network. By varying the resistances in the network, users can adjust the output voltage to the desired level, typically ranging from 1.25V to 37V.
The LM317LMX is commonly used in power supply applications due to its ability to produce a stable output voltage, adjustable over a wide range, with good line and load regulation.

Manufacturer

The LM317LMX is a voltage regulator manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and produces semiconductors and various integrated circuits, which are used in a wide range of electronic applications. TI is well-known for its role in the electronics industry and has a diverse product portfolio that includes products for analog and embedded processing. The company serves various sectors, including automotive, industrial, personal electronics, communications, and enterprise systems. Known for its innovation and engineering expertise, Texas Instruments is a leader in the development of semiconductors, which are critical components in modern electronic devices.

Application

The LM317LMX is a versatile linear voltage regulator used in various applications. It is commonly employed in power supply circuits to provide a stable output voltage from a higher voltage input. Key application areas include:
1. Adjustable Power Supplies: It can be used to create customizable voltage outputs for different devices.
2. Battery Chargers: It offers regulated charging for batteries, ensuring consistent voltage levels.
3. Embedded Systems: Provides stable power to microcontrollers and other components.
4. Test Equipment: Ensures precise voltage supply for testing electronic components.
5. DIY Electronics Projects: Popular among hobbyists for small-scale power regulation.
Its ability to output a range of voltages makes it suitable for numerous electronic applications.

Package

The LM317LMX is typically available in a surface-mount package style. Specifically, it comes in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is suitable for applications requiring a compact and efficient voltage regulator on printed circuit boards.

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