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LM317AEMPX
+物料清單IC REG LIN POS ADJ 1.5A SOT223-4
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製造商德州儀器
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製造商部分 #LM317AEMPX
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有存貨7684
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規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR) |
| ProductStatus | Not For New Designs |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.25V |
| 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 | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-261-4, TO-261AA |
概述
Description
Key features of the LM317AEMPX include its overload protection, internal current limiting, and thermal shutdown capabilities, which enhance reliability and safety in various operating conditions. The LM317AEMPX is typically housed in a TO-220 package, but it can also be available in other package types to suit different design requirements.
Its ease of use, versatility, and robust performance make the LM317AEMPX a staple in electronic design where precise voltage regulation is required. Its adjustable nature allows for flexibility in applications requiring different voltage levels from a single device.
Equivalent
1. LM317T: A similar adjustable voltage regulator with the same voltage and current specifications.
2. LM317L: A low-current variant of the LM317 series.
3. L78S05CV Fixed voltage regulator, similar package.
4. TL783: High voltage adjustable regulator.
5. NTE956: A functionally similar replacement for the LM317 series.
Always double-check the datasheets for compatibility in specific applications.
Features
1. Adjustable Output Voltage: It provides an output voltage range from 1.25V to 37V, allowing for flexible applications.
2. Output Current: It supports a maximum output current of up to 1.5A, making it suitable for medium power applications.
3. Load and Line Regulation: It offers excellent load and line regulation, ensuring stable output even with variations in input voltage or output load.
4. Thermal Overload Protection: The device includes internal thermal overload protection to prevent damage from overheating.
5. Short-Circuit Protection: It features current limiting for short-circuit protection, enhancing reliability.
6. Adjustable Voltage Capability: Requires only two external resistors to set the desired output voltage, simplifying design and integration.
7. Dropout Voltage: The LM317AEMPX has a relatively low dropout voltage, enhancing efficiency.
8. Package Options: It comes in various package options, including surface-mount and through-hole, to accommodate different design requirements.
9. Applications: Widely used in power supply designs, battery chargers, and adjustable power devices.
These features make the LM317AEMPX a popular choice for various electronic applications requiring stable and adjustable voltage regulation.
Pinout
1. Input (Pin 1): This pin receives the unregulated input voltage which the LM317AEMPX regulates to provide a stable output voltage.
2. Output (Pin 2): This pin provides the regulated output voltage. The output voltage can be adjusted to any level between 1.25V to 37V using an external resistor-divider network.
3. Adjust (Pin 3): This pin is used to set the output voltage. By connecting resistors between this pin, the output pin, and ground, the desired output voltage can be set.
The LM317AEMPX requires a minimum load current to maintain regulation and offers features such as over-temperature protection and current limiting.