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製造商江蘇長景電子科技有限公司。
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製造商部分 #CJ78L05
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規格
| 屬性 | 價值 |
| Manufacturer | Jiangsu Changjing Electronics Technology Co., Ltd. |
| Package / Case | SOT-89-3L |
| Operating Temperature | -40℃~+125℃@(Tj) |
| Voltage - Supply | 30V |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Current - Output | 100mA |
| Voltage Dropout | 1.7V@(40mA) |
| Power Supply Rejection Ratio (PSRR) | 49dB@(120Hz) |
| Output Voltage | 5V |
| Output Configuration | Positive electrode |
概述
Description
The CJ78L05 is a fixed 5V positive voltage regulator in a TO-92 package, designed for low-power applications. It provides a stable 5V output with an input voltage range of 7V to 20V and a maximum output current of 100mA.
Key features:
- Low dropout voltage (~2V).
- Built-in overcurrent and thermal protection.
- Simple to use—requires only input/output capacitors for stability.
Commonly used in small electronic circuits, such as microcontrollers, sensors, and low-power analog/digital systems.
Alternatives: LM78L05, UA78L05.
Key features:
- Low dropout voltage (~2V).
- Built-in overcurrent and thermal protection.
- Simple to use—requires only input/output capacitors for stability.
Commonly used in small electronic circuits, such as microcontrollers, sensors, and low-power analog/digital systems.
Alternatives: LM78L05, UA78L05.
Equivalent
The CJ78L05 is a 5V voltage regulator. Equivalent products include:
- LM78L05 (Texas Instruments)
- UA78L05 (Fairchild/ON Semiconductor)
- MC78L05 (ON Semiconductor)
- L78L05 (STMicroelectronics)
- KA78L05 (Samsung)
These are all 100mA, fixed 5V linear regulators with similar pinouts and specifications. Always verify datasheets for exact compatibility.
- LM78L05 (Texas Instruments)
- UA78L05 (Fairchild/ON Semiconductor)
- MC78L05 (ON Semiconductor)
- L78L05 (STMicroelectronics)
- KA78L05 (Samsung)
These are all 100mA, fixed 5V linear regulators with similar pinouts and specifications. Always verify datasheets for exact compatibility.
Features
The CJ78L05 is a low-dropout (LDO) linear voltage regulator with the following key features:
- Output Voltage: Fixed +5V
- Output Current: Up to 100mA
- Low Dropout Voltage: Typically 0.7V at full load
- Input Voltage Range: 7V to 20V (max 35V)
- Low Quiescent Current: ~5mA
- Built-in Protection: Overcurrent and thermal shutdown
- Package Options: TO-92, SOT-89, or similar
It provides stable voltage regulation for low-power applications, such as microcontrollers and sensors, with minimal external components. Its low dropout allows operation even when the input voltage is close to 5V.
- Output Voltage: Fixed +5V
- Output Current: Up to 100mA
- Low Dropout Voltage: Typically 0.7V at full load
- Input Voltage Range: 7V to 20V (max 35V)
- Low Quiescent Current: ~5mA
- Built-in Protection: Overcurrent and thermal shutdown
- Package Options: TO-92, SOT-89, or similar
It provides stable voltage regulation for low-power applications, such as microcontrollers and sensors, with minimal external components. Its low dropout allows operation even when the input voltage is close to 5V.
Pinout
The CJ78L05 is a 3-pin positive voltage regulator that provides a fixed +5V output with a maximum current of 100mA.
Pin Functions:
1. Input (Pin 1): Connects to the unregulated DC input voltage (up to 30V).
2. Ground (Pin 2): Common ground reference.
3. Output (Pin 3): Delivers a stable +5V output.
This low-power linear regulator is commonly used in low-current applications requiring steady voltage. It includes built-in thermal and short-circuit protection.
Pin Functions:
1. Input (Pin 1): Connects to the unregulated DC input voltage (up to 30V).
2. Ground (Pin 2): Common ground reference.
3. Output (Pin 3): Delivers a stable +5V output.
This low-power linear regulator is commonly used in low-current applications requiring steady voltage. It includes built-in thermal and short-circuit protection.
Application
The CJ78L05 is a 5V voltage regulator commonly used in:
1. Consumer Electronics – Powering microcontrollers, sensors, and small circuits.
2. Industrial Control – Providing stable voltage for PLCs and automation systems.
3. Telecommunications – Regulating power in low-current communication devices.
4. Automotive Electronics – Supporting dashboards and infotainment systems.
5. Embedded Systems – Ensuring reliable voltage for IoT and portable devices.
Its low dropout and compact design make it ideal for applications requiring steady 5V power with minimal components.
1. Consumer Electronics – Powering microcontrollers, sensors, and small circuits.
2. Industrial Control – Providing stable voltage for PLCs and automation systems.
3. Telecommunications – Regulating power in low-current communication devices.
4. Automotive Electronics – Supporting dashboards and infotainment systems.
5. Embedded Systems – Ensuring reliable voltage for IoT and portable devices.
Its low dropout and compact design make it ideal for applications requiring steady 5V power with minimal components.
