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) | 15V |
| Voltage-Output(Min/Fixed) | 1.25V |
| Voltage-Output(Max) | 13.8V |
| VoltageDropout(Max) | 1.2V @ 800mA |
| Current-Output | 800mA |
| Current-Quiescent(Iq) | 5 mA |
| Current-Supply(Max) | 10 mA |
| PSRR | 75dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-261-4, TO-261AA |
Tổng quan
Description
The LM1117IMP-ADJ is a low-dropout voltage regulator designed for applications requiring a stable and adjustable output voltage. It is part of the LM1117 series, which offers a fixed output voltage version and an adjustable version. The "ADJ" in its name indicates that this specific model allows for adjustable output, typically ranging from 1.25V to 13.8V, depending on the input voltage and external resistor configuration.
Key features of the LM1117IMP-ADJ include a dropout voltage as low as 1.2V at 800mA load current, which is advantageous for low voltage applications. It also provides excellent load and line regulation, ensuring consistent performance across various operating conditions. The regulator is designed to prevent damage through current limiting and thermal shutdown features, enhancing its reliability. It comes in a small SOT-223 package, making it suitable for space-constrained applications. The LM1117IMP-ADJ is widely used in consumer electronics, computers, and industrial devices where efficient voltage regulation is required.
Key features of the LM1117IMP-ADJ include a dropout voltage as low as 1.2V at 800mA load current, which is advantageous for low voltage applications. It also provides excellent load and line regulation, ensuring consistent performance across various operating conditions. The regulator is designed to prevent damage through current limiting and thermal shutdown features, enhancing its reliability. It comes in a small SOT-223 package, making it suitable for space-constrained applications. The LM1117IMP-ADJ is widely used in consumer electronics, computers, and industrial devices where efficient voltage regulation is required.
Equivalent
The LM1117IMP-ADJ is a low dropout linear voltage regulator. Equivalent products include:
1. AMS1117-ADJ - A similar adjustable LDO voltage regulator.
2. TLV1117-33 - Texas Instruments' variant with similar specifications.
3. MIC39100/39101 - Adjustable LDO with low dropout voltage.
4. LD1117-ADJ - STMicroelectronics' equivalent adjustable version.
5. NCP1117-ADJ - ON Semiconductor's adjustable LDO version.
These alternatives offer comparable functionality and performance, suitable for replacing the LM1117IMP-ADJ in various applications.
1. AMS1117-ADJ - A similar adjustable LDO voltage regulator.
2. TLV1117-33 - Texas Instruments' variant with similar specifications.
3. MIC39100/39101 - Adjustable LDO with low dropout voltage.
4. LD1117-ADJ - STMicroelectronics' equivalent adjustable version.
5. NCP1117-ADJ - ON Semiconductor's adjustable LDO version.
These alternatives offer comparable functionality and performance, suitable for replacing the LM1117IMP-ADJ in various applications.
Features
The LM1117IMP-ADJ is a low-dropout linear voltage regulator designed for applications requiring adjustable output voltage. Here are its key features:
1. Adjustable Output Voltage: The device supports an adjustable output voltage range, allowing users to set the desired level using an external resistor network.
2. Low Dropout Voltage: It has a low dropout voltage of approximately 1.2V at full load, making it efficient for applications with limited input-output voltage differentials.
3. Output Current: The LM1117IMP-ADJ can provide a typical output current of up to 800 mA.
4. Thermal Protection: It includes built-in protection against overheating, ensuring reliable operation under varying thermal conditions.
5. Current Limiting: The regulator features current limiting to prevent damage due to excessive load currents.
6. Stability: The device is stable with low ESR (Equivalent Series Resistance) capacitors, allowing for various capacitor selections.
7. Package: It is typically available in an SOT-223 package, which is suitable for space-constrained applications.
These features make the LM1117IMP-ADJ suitable for various electronic applications requiring adjustable, regulated voltage outputs with decent efficiency and reliability.
1. Adjustable Output Voltage: The device supports an adjustable output voltage range, allowing users to set the desired level using an external resistor network.
2. Low Dropout Voltage: It has a low dropout voltage of approximately 1.2V at full load, making it efficient for applications with limited input-output voltage differentials.
3. Output Current: The LM1117IMP-ADJ can provide a typical output current of up to 800 mA.
4. Thermal Protection: It includes built-in protection against overheating, ensuring reliable operation under varying thermal conditions.
5. Current Limiting: The regulator features current limiting to prevent damage due to excessive load currents.
6. Stability: The device is stable with low ESR (Equivalent Series Resistance) capacitors, allowing for various capacitor selections.
7. Package: It is typically available in an SOT-223 package, which is suitable for space-constrained applications.
These features make the LM1117IMP-ADJ suitable for various electronic applications requiring adjustable, regulated voltage outputs with decent efficiency and reliability.
Pinout
The LM1117IMP-ADJ is a voltage regulator with adjustable output. It is typically supplied in a SOT-223 package, which has 3 pins. The pin functions are as follows:
1. Pin 1 (ADJ/GND): This pin is used to adjust the output voltage. It is connected to a resistor divider network to set the desired output voltage.
2. Pin 2 (VOUT): This is the output pin where the regulated voltage is provided. The output voltage can be adjusted using the ADJ pin.
3. Pin 3 (VIN): This is the input pin where the unregulated input voltage is connected. The device regulates this input to provide a stable output voltage.
The LM1117IMP-ADJ can provide an output voltage that is adjustable from 1.25V to a maximum of around 13.8V, depending on the input voltage and external components used. It is commonly used in applications requiring a stable voltage supply with a current capability of up to 800 mA.
1. Pin 1 (ADJ/GND): This pin is used to adjust the output voltage. It is connected to a resistor divider network to set the desired output voltage.
2. Pin 2 (VOUT): This is the output pin where the regulated voltage is provided. The output voltage can be adjusted using the ADJ pin.
3. Pin 3 (VIN): This is the input pin where the unregulated input voltage is connected. The device regulates this input to provide a stable output voltage.
The LM1117IMP-ADJ can provide an output voltage that is adjustable from 1.25V to a maximum of around 13.8V, depending on the input voltage and external components used. It is commonly used in applications requiring a stable voltage supply with a current capability of up to 800 mA.
Manufacturer
The LM1117IMP-ADJ is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of electronic components, including analog chips and embedded processors. Founded in 1930 and headquartered in Dallas, Texas, TI is recognized for its innovation and contributions to the electronics industry. The company serves a variety of sectors, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is known for its focus on research and development, which allows it to provide cutting-edge technology solutions to meet the evolving needs of its customers.
Application
The LM1117IMP-ADJ is a low-dropout linear voltage regulator used in various applications. Key areas include:
1. Power Supply Regulation: Ensures stable voltage supply for microcontrollers and other digital circuits.
2. Consumer Electronics: Used in devices like smartphones and tablets for efficient power management.
3. Communication Equipment: Provides stable power to networking devices.
4. Industrial Automation: Powers sensors and control systems in industrial settings.
5. Embedded Systems: Supplies required voltage for microprocessors and embedded applications.
6. Battery-Powered Devices: Offers efficient power regulation for extended battery life.
These applications benefit from the device’s adjustable output voltage and low-dropout performance.
1. Power Supply Regulation: Ensures stable voltage supply for microcontrollers and other digital circuits.
2. Consumer Electronics: Used in devices like smartphones and tablets for efficient power management.
3. Communication Equipment: Provides stable power to networking devices.
4. Industrial Automation: Powers sensors and control systems in industrial settings.
5. Embedded Systems: Supplies required voltage for microprocessors and embedded applications.
6. Battery-Powered Devices: Offers efficient power regulation for extended battery life.
These applications benefit from the device’s adjustable output voltage and low-dropout performance.
Package
The LM1117IMP-ADJ is a low dropout voltage regulator available in a surface-mount SOT-223 package. This package type is compact, suitable for space-constrained applications, and provides efficient thermal performance essential for regulating voltage with minimal power loss.
