規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 35V |
| Voltage - Output (Min/Fixed) | 12V |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 6 mA |
| Current - Supply (Max) | 6.5 mA |
| PSRR | 42dB (120Hz) |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
概述
Description
The L78L12ABUTR is a three-terminal positive voltage regulator integrated circuit (IC) from the L78Lxx series, designed to provide a stable 12V output voltage from a higher voltage input. It is commonly used in electronic circuits requiring a regulated power supply. This particular model is known for its low dropout voltage, making it efficient in applications where the input voltage is close to the output voltage.
Features of the L78L12ABUTR include short-circuit protection, thermal shutdown protection, and safe area protection, ensuring reliable operation under various conditions. It typically comes in a TO-92 or SOT-89 package, suitable for through-hole or surface mount applications, respectively.
The device is widely used in consumer electronics, telecommunications, and industrial equipment due to its compact size and robust performance. Its ability to maintain a consistent output voltage makes it ideal for powering microcontrollers, sensors, and other sensitive electronic components that require a stable power supply.
Features of the L78L12ABUTR include short-circuit protection, thermal shutdown protection, and safe area protection, ensuring reliable operation under various conditions. It typically comes in a TO-92 or SOT-89 package, suitable for through-hole or surface mount applications, respectively.
The device is widely used in consumer electronics, telecommunications, and industrial equipment due to its compact size and robust performance. Its ability to maintain a consistent output voltage makes it ideal for powering microcontrollers, sensors, and other sensitive electronic components that require a stable power supply.
Equivalent
The L78L12ABUTR is a positive voltage regulator that provides a fixed output voltage of 12V. Equivalent products include:
1. LM78L12 from Texas Instruments or ON Semiconductor
2. UA78L12 from Texas Instruments
3. M78L12 from STMicroelectronics
4. KA78L12 from Fairchild Semiconductor (now part of ON Semiconductor)
These alternatives offer similar functionality and specifications for applications requiring a 12V fixed output voltage. Always verify specific parameters to ensure compatibility with your application.
1. LM78L12 from Texas Instruments or ON Semiconductor
2. UA78L12 from Texas Instruments
3. M78L12 from STMicroelectronics
4. KA78L12 from Fairchild Semiconductor (now part of ON Semiconductor)
These alternatives offer similar functionality and specifications for applications requiring a 12V fixed output voltage. Always verify specific parameters to ensure compatibility with your application.
Features
The L78L12ABUTR is a three-terminal positive voltage regulator integrated circuit. It offers the following features:
1. Output Voltage: Provides a fixed 12V output voltage.
2. Output Current: Capable of delivering up to 100mA of output current.
3. Thermal Protection: Includes thermal shut-down capabilities to prevent damage from overheating.
4. Short-Circuit Protection: Equipped with internal current limiting to protect against short-circuit conditions.
5. Low Quiescent Current: Designed to maintain low quiescent current, enhancing efficiency.
6. Dropout Voltage: Features a low dropout voltage, facilitating better regulation performance.
7. Compact Package: Available in space-saving packages, suitable for various applications.
8. Operating Temperature Range: Functions effectively over a wide temperature range, typically from -40°C to +125°C.
9. Stability: Requires minimal external components for stable operation, typically just a couple of capacitors.
10. Applications: Ideal for use in battery-powered devices, consumer electronics, and other small-signal applications.
These features make the L78L12ABUTR suitable for use in circuits requiring a stable 12V power supply.
1. Output Voltage: Provides a fixed 12V output voltage.
2. Output Current: Capable of delivering up to 100mA of output current.
3. Thermal Protection: Includes thermal shut-down capabilities to prevent damage from overheating.
4. Short-Circuit Protection: Equipped with internal current limiting to protect against short-circuit conditions.
5. Low Quiescent Current: Designed to maintain low quiescent current, enhancing efficiency.
6. Dropout Voltage: Features a low dropout voltage, facilitating better regulation performance.
7. Compact Package: Available in space-saving packages, suitable for various applications.
8. Operating Temperature Range: Functions effectively over a wide temperature range, typically from -40°C to +125°C.
9. Stability: Requires minimal external components for stable operation, typically just a couple of capacitors.
10. Applications: Ideal for use in battery-powered devices, consumer electronics, and other small-signal applications.
These features make the L78L12ABUTR suitable for use in circuits requiring a stable 12V power supply.
Pinout
The L78L12ABUTR is a three-terminal positive voltage regulator. It has a pin count of three. The primary function of this device is to provide a stable 12V output with a maximum output current of 100 mA. The three pins are typically configured as follows:
1. Input (Vin): This pin receives the unregulated input voltage. The input voltage should be higher than the desired output voltage (12V) plus the dropout voltage of the regulator.
2. Ground (GND): This pin is connected to the ground of both the input and output circuits.
3. Output (Vout): This pin provides the regulated 12V output voltage.
The L78L12ABUTR is commonly used in electronic circuits to ensure a consistent voltage supply, protecting sensitive components from fluctuations in input voltage.
1. Input (Vin): This pin receives the unregulated input voltage. The input voltage should be higher than the desired output voltage (12V) plus the dropout voltage of the regulator.
2. Ground (GND): This pin is connected to the ground of both the input and output circuits.
3. Output (Vout): This pin provides the regulated 12V output voltage.
The L78L12ABUTR is commonly used in electronic circuits to ensure a consistent voltage supply, protecting sensitive components from fluctuations in input voltage.
Manufacturer
The L78L12ABUTR is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer. It is known for designing and producing a wide range of semiconductor products, including microcontrollers, sensors, and power management devices. The company serves various sectors, such as industrial, automotive, consumer electronics, and telecommunications, providing solutions that are integral to modern electronic devices and systems.
Application
The L78L12ABUTR is a linear voltage regulator typically used in applications requiring a stable 12V output. Its primary application areas include:
1. Consumer Electronics: Provides regulated power supply for devices like televisions, radios, and gaming consoles.
2. Industrial Equipment: Used in automation systems and control panels for consistent voltage supply.
3. Telecommunications: Supports power regulation in networking devices and communication systems.
4. Automotive Systems: Ensures steady voltage in electronic control units and infotainment systems.
5. Computing and Peripherals: Powers microcontrollers, microprocessors, and peripheral devices needing a constant voltage level.
Its small size and reliable performance make it ideal for both general and specific electronic circuits requiring voltage stabilization.
1. Consumer Electronics: Provides regulated power supply for devices like televisions, radios, and gaming consoles.
2. Industrial Equipment: Used in automation systems and control panels for consistent voltage supply.
3. Telecommunications: Supports power regulation in networking devices and communication systems.
4. Automotive Systems: Ensures steady voltage in electronic control units and infotainment systems.
5. Computing and Peripherals: Powers microcontrollers, microprocessors, and peripheral devices needing a constant voltage level.
Its small size and reliable performance make it ideal for both general and specific electronic circuits requiring voltage stabilization.
Package
The L78L12ABUTR is typically available in a surface-mount package, specifically the SOT-89 (Small Outline Transistor). This package type is compact, making it suitable for applications where space is a constraint. It is commonly used for voltage regulator ICs, providing a stable output voltage.
