Спецификации
| Атрибут | Ценность |
| Package | Tube |
| 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 | 0°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA |
Обзор
Description
The LM1117S-ADJ is a versatile voltage regulator designed to provide a stable output voltage with adjustable capabilities. It is part of the LM1117 series, known for its low dropout voltage and high efficiency. The "ADJ" in its name indicates that it can be adjusted to provide a range of output voltages, depending on the external resistors used in the circuit.
Key features include a dropout voltage of approximately 1.2 volts at full load, making it suitable for applications requiring efficient voltage regulation with minimal power loss. It has a current output capability of up to 800 mA, ensuring it can handle moderate power loads. The device also includes internal current limiting and thermal shutdown features to protect against overloading and overheating.
The LM1117S-ADJ is commonly used in applications like telecommunications, networking equipment, and computers, where stable and adjustable power is crucial. Its small form factor and easy-to-use design make it a popular choice for both professional and hobbyist electronic projects.
Key features include a dropout voltage of approximately 1.2 volts at full load, making it suitable for applications requiring efficient voltage regulation with minimal power loss. It has a current output capability of up to 800 mA, ensuring it can handle moderate power loads. The device also includes internal current limiting and thermal shutdown features to protect against overloading and overheating.
The LM1117S-ADJ is commonly used in applications like telecommunications, networking equipment, and computers, where stable and adjustable power is crucial. Its small form factor and easy-to-use design make it a popular choice for both professional and hobbyist electronic projects.
Equivalent
The LM1117S-ADJ is a voltage regulator. Equivalent products include:
1. AMS1117-ADJ - Advanced Monolithic Systems
2. LM1086-ADJ - Texas Instruments
3. LD1117-ADJ - STMicroelectronics
4. NCP1117-ADJ - ON Semiconductor
5. TLV1117-ADJ - Texas Instruments
These alternatives offer similar adjustable output and performance characteristics. Always consult datasheets for compatibility in specific applications.
1. AMS1117-ADJ - Advanced Monolithic Systems
2. LM1086-ADJ - Texas Instruments
3. LD1117-ADJ - STMicroelectronics
4. NCP1117-ADJ - ON Semiconductor
5. TLV1117-ADJ - Texas Instruments
These alternatives offer similar adjustable output and performance characteristics. Always consult datasheets for compatibility in specific applications.
Features
The LM1117S-ADJ is a versatile low dropout voltage regulator, offering the following key features:
1. Adjustable Output Voltage: The output voltage can be set to a desired level by using external resistors, allowing flexibility in various applications.
2. Low Dropout Voltage: Typically 1.2V at full load current, which improves efficiency and performance, especially in battery-powered applications.
3. Output Current Capability: Capable of delivering up to 800mA of current, suitable for moderate power requirements.
4. Thermal Protection: Built-in thermal overload protection to prevent damage from overheating.
5. Short-Circuit Protection: Protects the device from output short circuits, enhancing reliability.
6. Stable with Low ESR Capacitors: Compatible with low equivalent series resistance capacitors for output stability.
7. Wide Input Voltage Range: Accepts a wide range of input voltages, providing flexibility in different power conditions.
8. Surface-Mount Package: Typically available in a surface-mount SOT-223 package, saving space on PCBs.
These features make the LM1117S-ADJ suitable for a variety of applications, including telecommunications, networking equipment, and consumer electronics.
1. Adjustable Output Voltage: The output voltage can be set to a desired level by using external resistors, allowing flexibility in various applications.
2. Low Dropout Voltage: Typically 1.2V at full load current, which improves efficiency and performance, especially in battery-powered applications.
3. Output Current Capability: Capable of delivering up to 800mA of current, suitable for moderate power requirements.
4. Thermal Protection: Built-in thermal overload protection to prevent damage from overheating.
5. Short-Circuit Protection: Protects the device from output short circuits, enhancing reliability.
6. Stable with Low ESR Capacitors: Compatible with low equivalent series resistance capacitors for output stability.
7. Wide Input Voltage Range: Accepts a wide range of input voltages, providing flexibility in different power conditions.
8. Surface-Mount Package: Typically available in a surface-mount SOT-223 package, saving space on PCBs.
These features make the LM1117S-ADJ suitable for a variety of applications, including telecommunications, networking equipment, and consumer electronics.
Pinout
The LM1117S-ADJ is an adjustable voltage regulator with a pin count of three. The pin configuration and functions are as follows:
1. Input (Pin 3): This pin is where the unregulated input voltage is supplied. It should be connected to a voltage source that provides at least 1.3V higher than the desired output voltage.
2. Output (Pin 2): This pin provides the regulated output voltage. The output voltage can be adjusted by using external resistors connected to the Adjust pin.
3. Adjust (Pin 1): This pin is used to set the output voltage. By connecting resistors between this pin, the output, and ground, the voltage can be adjusted to the desired level. The formula used for setting the output voltage is based on the resistor values chosen.
The LM1117S-ADJ is commonly used in applications requiring a regulated power supply with the ability to adjust the output voltage as needed, providing flexibility in various circuits.
1. Input (Pin 3): This pin is where the unregulated input voltage is supplied. It should be connected to a voltage source that provides at least 1.3V higher than the desired output voltage.
2. Output (Pin 2): This pin provides the regulated output voltage. The output voltage can be adjusted by using external resistors connected to the Adjust pin.
3. Adjust (Pin 1): This pin is used to set the output voltage. By connecting resistors between this pin, the output, and ground, the voltage can be adjusted to the desired level. The formula used for setting the output voltage is based on the resistor values chosen.
The LM1117S-ADJ is commonly used in applications requiring a regulated power supply with the ability to adjust the output voltage as needed, providing flexibility in various circuits.
Manufacturer
The LM1117S-ADJ is a voltage regulator manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of electronic components and integrated circuits. It is known for its innovations and contributions to a variety of technology sectors, including analog and embedded processing products. TI's components are used in applications spanning consumer electronics, automotive systems, communications equipment, industrial devices, and more. The company focuses on developing technologies that improve power efficiency, performance, and miniaturization, among other attributes, in electronic systems.
Application
The LM1117S-ADJ is a voltage regulator with an adjustable output, commonly used in applications requiring a stable power supply. Key application areas include:
1. Power Management: Provides regulated power supply for microprocessors and microcontrollers.
2. Consumer Electronics: Used in devices like routers, modems, and set-top boxes.
3. Telecommunications: Helps in signal conditioning and power distribution.
4. Industrial Automation: Offers stable power for sensors and control systems.
5. Embedded Systems: Provides consistent voltage for integrated circuits and peripherals.
6. Battery-Powered Devices: Ensures efficient voltage regulation to extend battery life.
These regulators are valued for their ease of use, reliability, and flexibility in various electronic circuits.
1. Power Management: Provides regulated power supply for microprocessors and microcontrollers.
2. Consumer Electronics: Used in devices like routers, modems, and set-top boxes.
3. Telecommunications: Helps in signal conditioning and power distribution.
4. Industrial Automation: Offers stable power for sensors and control systems.
5. Embedded Systems: Provides consistent voltage for integrated circuits and peripherals.
6. Battery-Powered Devices: Ensures efficient voltage regulation to extend battery life.
These regulators are valued for their ease of use, reliability, and flexibility in various electronic circuits.
Package
The LM1117S-ADJ is a low dropout (LDO) linear voltage regulator. It comes in a SOT-223 package type, which is a small outline transistor package commonly used for surface mounting on circuit boards.
