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LM317LMX
IC REG LIN POS ADJ 100MA 8SOIC
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規格
| 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) |
概述
Description
The LM317LMX is a popular adjustable voltage regulator used in a variety of electronics and power supply applications. It provides a simple and efficient way to obtain a stable output voltage ranging from 1.25V to 37V, with a current output capability up to 100mA. The device is designed to offer a high degree of temperature and line regulation, making it suitable for tasks requiring precise voltage adjustments.
Packaged typically in an 8-pin SOIC (Small Outline Integrated Circuit), the LM317LMX includes features such as overload protection, current limiting, and thermal shutdown, which enhance its reliability and safety in different operating environments. It requires only two external resistors to set the output voltage, making it user-friendly and easy to implement in various circuit designs.
The LM317LMX is widely used in applications such as battery chargers, constant current regulators, and DC-to-DC converters. Its versatility, combined with robust performance characteristics, makes it a staple component for both hobbyists and professional electronic engineers.
Packaged typically in an 8-pin SOIC (Small Outline Integrated Circuit), the LM317LMX includes features such as overload protection, current limiting, and thermal shutdown, which enhance its reliability and safety in different operating environments. It requires only two external resistors to set the output voltage, making it user-friendly and easy to implement in various circuit designs.
The LM317LMX is widely used in applications such as battery chargers, constant current regulators, and DC-to-DC converters. Its versatility, combined with robust performance characteristics, makes it a staple component for both hobbyists and professional electronic engineers.
Features
The LM317LMX is a versatile adjustable voltage regulator capable of supplying 1.5A over a 1.25V to 37V output range. Key features include:
1. Output Voltage Range: 1.25V to 37V, adjustable based on external resistor configuration.
2. Output Current: Up to 1.5A adjustable current output.
3. Line Regulation: Typically 0.01%/V.
4. Load Regulation: Typically 0.1%.
5. Thermal Overload Protection: Automatically protects the device from overheating.
6. Current Limiting: Built-in protection against excessive load currents.
7. Safe Area Protection: Ensures device operation within its safe limits.
8. Package: Available in surface-mount (SOT-223) and through-hole (TO-220) packages.
9. Temperature Range: Operational temperature typically ranges from 0°C to 125°C.
10. Application Flexibility: Suitable for a wide range of applications including constant current regulators and battery charging.
Overall, the LM317LMX provides reliable performance for a wide array of voltage regulation scenarios, emphasizing ease of use and protection features.
1. Output Voltage Range: 1.25V to 37V, adjustable based on external resistor configuration.
2. Output Current: Up to 1.5A adjustable current output.
3. Line Regulation: Typically 0.01%/V.
4. Load Regulation: Typically 0.1%.
5. Thermal Overload Protection: Automatically protects the device from overheating.
6. Current Limiting: Built-in protection against excessive load currents.
7. Safe Area Protection: Ensures device operation within its safe limits.
8. Package: Available in surface-mount (SOT-223) and through-hole (TO-220) packages.
9. Temperature Range: Operational temperature typically ranges from 0°C to 125°C.
10. Application Flexibility: Suitable for a wide range of applications including constant current regulators and battery charging.
Overall, the LM317LMX provides reliable performance for a wide array of voltage regulation scenarios, emphasizing ease of use and protection features.
Package
The LM317LMX is a voltage regulator typically found in a SOT-223 package. This package type is compact and suitable for surface-mount applications.
Pinout
The LM317LMX is a three-terminal adjustable voltage regulator. It typically comes in a TO-252, TO-220, or other similar package formats. The pin count for the LM317 specifically refers to its three terminals, which are:
1. Input (Vin): The input pin where the unregulated voltage is supplied.
2. Output (Vout): The regulated output voltage is provided.
3. Adjustment (Adj): This pin is used to set the output voltage through an external resistor divider network.
The LM317 can provide an output voltage ranging from 1.25V to approximately 37V, depending on the input voltage and the external resistors used. It can supply a maximum output current of about 1.5A, depending on the package and thermal conditions. The device is used in various applications requiring a stable and adjustable output voltage, including power supply designs and battery chargers.
1. Input (Vin): The input pin where the unregulated voltage is supplied.
2. Output (Vout): The regulated output voltage is provided.
3. Adjustment (Adj): This pin is used to set the output voltage through an external resistor divider network.
The LM317 can provide an output voltage ranging from 1.25V to approximately 37V, depending on the input voltage and the external resistors used. It can supply a maximum output current of about 1.5A, depending on the package and thermal conditions. The device is used in various applications requiring a stable and adjustable output voltage, including power supply designs and battery chargers.
Manufacturer
The LM317LMX is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of electronic components. They are well-known for their analog and embedded processing products, including microcontrollers, digital signal processors, and power management solutions like the LM317 voltage regulator series. TI serves various industries, including automotive, industrial, consumer electronics, and communications, providing components that are critical in building electronic systems and devices.
Application
The LM317LMX is a versatile adjustable voltage regulator used in various applications. It is commonly employed for voltage regulation in power supply circuits, allowing output voltage adjustments typically ranging from 1.25V to 37V. Key application areas include battery chargers, LED drivers, and custom power supplies for electronic devices. It is also used in precision audio equipment, communication devices, and laboratory instruments. Its ability to handle moderate output current levels makes it suitable for hobbyist and industrial circuit designs requiring stable and adjustable output voltages.
Equivalent
The LM317LMX is a voltage regulator. Equivalent products include:
1. LM317L (by various manufacturers).
2. NTE956 (by NTE Electronics).
3. TLV1117 (by Texas Instruments).
4. L78Lxx series (by STMicroelectronics or Fairchild Semiconductor).
5. AZ1117 (by BCD Semiconductor).
These alternatives offer similar adjustable voltage regulation capabilities and are used in comparable applications. Always check the specific datasheet for exact specifications and pin compatibility.
1. LM317L (by various manufacturers).
2. NTE956 (by NTE Electronics).
3. TLV1117 (by Texas Instruments).
4. L78Lxx series (by STMicroelectronics or Fairchild Semiconductor).
5. AZ1117 (by BCD Semiconductor).
These alternatives offer similar adjustable voltage regulation capabilities and are used in comparable applications. Always check the specific datasheet for exact specifications and pin compatibility.
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