사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 37V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 37V |
| Current - Output | 1.5A |
| PSRR | 80dB ~ 65dB (120Hz) |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | 0°C ~ 125°C |
| Mounting Type | Surface Mount |
개요
Description
The LM317EMP/NOPB is a popular adjustable voltage regulator from Texas Instruments. It is designed to provide a flexible output voltage range from 1.25V to 37V, with a current output capability of up to 1.5A. This regulator is housed in a TO-252 surface-mount package, making it suitable for a wide range of applications where space is a concern.
Key features of the LM317EMP/NOPB include thermal overload protection, short-circuit protection, and safe area compensation, ensuring reliable operation even under adverse conditions. The regulator operates with a dropout voltage as low as 3V, enhancing its efficiency and performance in various circuits.
The LM317 is known for its ease of use, requiring only two external resistors to set the output voltage. It is widely used in power supply designs for consumer electronics, industrial equipment, and other applications where a stable and adjustable output voltage is needed. Its robust performance and versatility make it a staple in the field of linear voltage regulation.
Key features of the LM317EMP/NOPB include thermal overload protection, short-circuit protection, and safe area compensation, ensuring reliable operation even under adverse conditions. The regulator operates with a dropout voltage as low as 3V, enhancing its efficiency and performance in various circuits.
The LM317 is known for its ease of use, requiring only two external resistors to set the output voltage. It is widely used in power supply designs for consumer electronics, industrial equipment, and other applications where a stable and adjustable output voltage is needed. Its robust performance and versatility make it a staple in the field of linear voltage regulation.
Equivalent
The LM317EMP/NOPB is a linear voltage regulator. Equivalent products include:
1. L78XX Series by STMicroelectronics
2. MC7800 Series by ON Semiconductor
3. L78XX Series by Texas Instruments
4. LM1086 by Texas Instruments
5. LD1117 by STMicroelectronics
These alternatives offer similar voltage regulation capabilities and are used in comparable applications. Be sure to verify specific voltage and current requirements when selecting a replacement.
1. L78XX Series by STMicroelectronics
2. MC7800 Series by ON Semiconductor
3. L78XX Series by Texas Instruments
4. LM1086 by Texas Instruments
5. LD1117 by STMicroelectronics
These alternatives offer similar voltage regulation capabilities and are used in comparable applications. Be sure to verify specific voltage and current requirements when selecting a replacement.
Features
The LM317EMP/NOPB is an adjustable voltage regulator with the following features:
1. Output Voltage Range: Adjustable from 1.25 V to 37 V.
2. Output Current: Provides up to 1.5 A of load current.
3. Line Regulation: Typically 0.01%/V, ensuring stable output despite input voltage changes.
4. Load Regulation: Typically 0.1%, maintaining output voltage stability under varying load conditions.
5. Temperature Stability: Offers a high level of temperature stability.
6. Built-in Current Limiting: Protects against overloads by limiting current.
7. Thermal Overload Protection: Prevents damage by shutting down the regulator during overheating.
8. Safe Area Protection: Ensures safe operation over the entire range of input-output voltages.
These features make the LM317EMP/NOPB an excellent choice for a variety of applications requiring a reliable, adjustable voltage supply.
1. Output Voltage Range: Adjustable from 1.25 V to 37 V.
2. Output Current: Provides up to 1.5 A of load current.
3. Line Regulation: Typically 0.01%/V, ensuring stable output despite input voltage changes.
4. Load Regulation: Typically 0.1%, maintaining output voltage stability under varying load conditions.
5. Temperature Stability: Offers a high level of temperature stability.
6. Built-in Current Limiting: Protects against overloads by limiting current.
7. Thermal Overload Protection: Prevents damage by shutting down the regulator during overheating.
8. Safe Area Protection: Ensures safe operation over the entire range of input-output voltages.
These features make the LM317EMP/NOPB an excellent choice for a variety of applications requiring a reliable, adjustable voltage supply.
Pinout
The LM317EMP/NOPB is a voltage regulator with a 3-pin configuration. Its primary function is to provide a stable adjustable output voltage, typically ranging from 1.25V to 37V, with a current output of up to 1.5A. The three pins are:
1. Input (IN): This pin receives the unregulated input voltage, which is typically higher than the desired output voltage.
2. Output (OUT): The regulated output voltage is delivered through this pin. The voltage is adjusted using an external resistor network.
3. Adjust (ADJ): This pin allows you to set the output voltage by connecting it to a voltage divider network. By varying the resistance, you can adjust the output voltage to the desired level.
The LM317EMP/NOPB is popular for its versatility in applications requiring a variable voltage supply, such as power supplies and battery chargers, due to its ease of use, reliability, and ability to provide a consistent output voltage even when the input voltage fluctuates.
1. Input (IN): This pin receives the unregulated input voltage, which is typically higher than the desired output voltage.
2. Output (OUT): The regulated output voltage is delivered through this pin. The voltage is adjusted using an external resistor network.
3. Adjust (ADJ): This pin allows you to set the output voltage by connecting it to a voltage divider network. By varying the resistance, you can adjust the output voltage to the desired level.
The LM317EMP/NOPB is popular for its versatility in applications requiring a variable voltage supply, such as power supplies and battery chargers, due to its ease of use, reliability, and ability to provide a consistent output voltage even when the input voltage fluctuates.
Manufacturer
The LM317EMP/NOPB is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is a global semiconductor company that designs and manufactures electronic components. It is known for its development of analog chips and embedded processors, which are used in a variety of applications across industries such as automotive, consumer electronics, communications, and industrial equipment. The company was founded in 1930 and is headquartered in Dallas, Texas. Texas Instruments is recognized for its innovation in technology and holds a significant number of patents.
Application
The LM317EMP/NOPB is a popular adjustable voltage regulator used in a variety of applications due to its versatility and ease of use. Key application areas include power supply design for consumer electronics, voltage regulation in battery chargers, and as a precision current regulator. It is also used in LED drivers, local on-card regulation, and embedded systems where efficient power management is needed. The device is suitable for use in both linear and switching regulator designs due to its ability to provide a stable output voltage over a wide range of input voltages, making it a go-to component for engineers looking to implement reliable power solutions in their circuits.
Package
The LM317EMP/NOPB is a voltage regulator in a SOT-223 package. This package is a surface-mount device, typically used for its compact size, which is suitable for applications where space is limited.
