Abbildungen dienen nur als Referenz
IC REG LIN POS ADJ 1.5A SOT223-4
-
HerstellerNational Semiconductor
-
Herstellerteil #LM317AEMPX/NOPB
-
Datenblatt LM317AEMPX/NOPB DataSheet
-
Paket SOT-223-4
-
Auf Lager4785
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package / Case | Bulk |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 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) |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
Übersicht
Description
The LM317AEMPX/NOPB is a versatile three-terminal adjustable voltage regulator from Texas Instruments. It offers a high output current capability of up to 1.5A with an adjustable output voltage range from 1.25V to 37V, making it suitable for a wide range of applications. The device features a built-in current limiting, thermal overload protection, and safe area protection, ensuring reliable performance under varying load conditions and preventing damage due to overloads or excessive heat.
The LM317AEMPX/NOPB is packaged for surface-mount applications, offering convenience in modern electronic designs. Its ease of use and reliability make it a popular choice for power supply circuits, battery chargers, and adjustable power supplies. The device requires only two external resistors to set the output voltage, simplifying circuit design. Additionally, it exhibits excellent line and load regulation, ensuring consistent performance across different operating conditions. This regulator is also known for its high ripple rejection, which helps maintain a stable output even with fluctuating input voltages.
The LM317AEMPX/NOPB is packaged for surface-mount applications, offering convenience in modern electronic designs. Its ease of use and reliability make it a popular choice for power supply circuits, battery chargers, and adjustable power supplies. The device requires only two external resistors to set the output voltage, simplifying circuit design. Additionally, it exhibits excellent line and load regulation, ensuring consistent performance across different operating conditions. This regulator is also known for its high ripple rejection, which helps maintain a stable output even with fluctuating input voltages.
Equivalent
The LM317AEMPX/NOPB is a linear voltage regulator. Equivalent products include:
1. LM317 – The basic version of the LM317A.
2. L78S05 – Offers a similar output capability, though fixed at 5V.
3. L78xx Series – Fixed voltage regulators (e.g., L7805, L7812).
4. UA78xx Series – Similar fixed voltage regulators.
5. LT1086 – A higher performance equivalent.
Ensure compatibility in voltage, current output, and package type when substituting.
1. LM317 – The basic version of the LM317A.
2. L78S05 – Offers a similar output capability, though fixed at 5V.
3. L78xx Series – Fixed voltage regulators (e.g., L7805, L7812).
4. UA78xx Series – Similar fixed voltage regulators.
5. LT1086 – A higher performance equivalent.
Ensure compatibility in voltage, current output, and package type when substituting.
Features
The LM317AEMPX/NOPB is a versatile voltage regulator with the following key features:
1. Adjustable Output: It provides an adjustable output voltage range from 1.25V to 37V with a maximum output current of 1.5A.
2. Thermal Overload Protection: Includes built-in thermal protection to prevent overheating and ensure reliability.
3. Short-Circuit Protection: Equipped with short-circuit current limiting features to safeguard against overcurrent conditions.
4. High Line Regulation: Offers excellent line regulation, typically maintaining a stable output with varying input voltages.
5. Load Regulation: Maintains precise output voltage across various load conditions.
6. Low Dropout Voltage: Requires a minimum dropout voltage for efficient operation across its voltage range.
7. Wide Input Voltage Range: Operates over a wide input voltage, enhancing its suitability for various applications.
8. Temperature Range: Designed to operate within a wide temperature range, making it suitable for diverse environments.
9. TO-252 Package: Supplied in a compact, surface-mount TO-252 package for space-efficient PCB design.
These features make the LM317AEMPX/NOPB a robust choice for applications requiring precise and adjustable voltage regulation.
1. Adjustable Output: It provides an adjustable output voltage range from 1.25V to 37V with a maximum output current of 1.5A.
2. Thermal Overload Protection: Includes built-in thermal protection to prevent overheating and ensure reliability.
3. Short-Circuit Protection: Equipped with short-circuit current limiting features to safeguard against overcurrent conditions.
4. High Line Regulation: Offers excellent line regulation, typically maintaining a stable output with varying input voltages.
5. Load Regulation: Maintains precise output voltage across various load conditions.
6. Low Dropout Voltage: Requires a minimum dropout voltage for efficient operation across its voltage range.
7. Wide Input Voltage Range: Operates over a wide input voltage, enhancing its suitability for various applications.
8. Temperature Range: Designed to operate within a wide temperature range, making it suitable for diverse environments.
9. TO-252 Package: Supplied in a compact, surface-mount TO-252 package for space-efficient PCB design.
These features make the LM317AEMPX/NOPB a robust choice for applications requiring precise and adjustable voltage regulation.
Pinout
The LM317AEMPX/NOPB is a voltage regulator IC with a TO-252 (DPAK) package, typically used for providing a stable output voltage. It has three pins, which serve the following functions:
1. Input (IN): This pin receives the unregulated input voltage that you want to regulate.
2. Output (OUT): This pin provides the regulated output voltage. The output voltage can be adjusted by connecting external resistors between the Adjust and Output pins.
3. Adjust (ADJ): This pin is used to set the output voltage by connecting it to a resistor divider network.
The LM317A can supply a load current of up to 1.5 A with an output voltage adjustable between 1.25 V and 37 V. It is commonly used in power supply applications where a constant output voltage is required.
1. Input (IN): This pin receives the unregulated input voltage that you want to regulate.
2. Output (OUT): This pin provides the regulated output voltage. The output voltage can be adjusted by connecting external resistors between the Adjust and Output pins.
3. Adjust (ADJ): This pin is used to set the output voltage by connecting it to a resistor divider network.
The LM317A can supply a load current of up to 1.5 A with an output voltage adjustable between 1.25 V and 37 V. It is commonly used in power supply applications where a constant output voltage is required.
Manufacturer
The LM317AEMPX/NOPB is manufactured by Texas Instruments. Texas Instruments is a technology company headquartered in Dallas, Texas. It is one of the largest semiconductor companies in the world and designs and manufactures a range of electronic components, including analog chips, embedded processors, and other integrated circuits. Texas Instruments is well-known for its innovation in the electronics industry and serves various markets, including industrial, automotive, personal electronics, and communications.
Application
The LM317AEMPX/NOPB is a versatile voltage regulator used in various applications, including:
1. Power Supply Design: It provides adjustable output voltage in power supply circuits.
2. Battery Chargers: Used in designing battery charging circuits due to its current limiting feature.
3. LED Drivers: Regulates current in LED applications.
4. Microcontroller Power Supply: Supplies stable voltage for microcontrollers and other digital circuits.
5. Test Equipment: Provides a stable voltage source for testing and measurement devices.
6. Industrial Automation: Used in controlling power for industrial automation systems.
This component is appreciated for its reliability, ease of use, and flexibility in many electronic design projects.
1. Power Supply Design: It provides adjustable output voltage in power supply circuits.
2. Battery Chargers: Used in designing battery charging circuits due to its current limiting feature.
3. LED Drivers: Regulates current in LED applications.
4. Microcontroller Power Supply: Supplies stable voltage for microcontrollers and other digital circuits.
5. Test Equipment: Provides a stable voltage source for testing and measurement devices.
6. Industrial Automation: Used in controlling power for industrial automation systems.
This component is appreciated for its reliability, ease of use, and flexibility in many electronic design projects.
Package
The LM317AEMPX/NOPB is a voltage regulator packaged in the SOT-223 (Surface-Mounted Small Outline Transistor) format. This package type is designed for applications that require efficient heat dissipation and space-saving on printed circuit boards.
