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NJM78L05UA
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NJM78L05UA Description
NJM78L05UA Description
The NJM78L05UA is a linear regulator IC designed by Nisshinbo Micro Devices Inc., a leading manufacturer in the electronics industry. This IC is part of the Power Management (PMIC) category and is housed in a SOT89 package. It is specifically engineered to provide a fixed output voltage of 5V with a maximum output current of 100mA. The NJM78L05UA is designed for surface mount applications, making it ideal for compact and space-constrained designs.
NJM78L05UA Features
- Output Voltage: The NJM78L05UA offers a fixed output voltage of 5V, ensuring stable power supply for various electronic devices.
- Output Current: It can deliver a maximum output current of 100mA, making it suitable for low to medium power applications.
- Input Voltage Range: The regulator can operate with an input voltage up to 30V, providing flexibility in power supply requirements.
- Low Quiescent Current: With a quiescent current of only 6mA, the NJM78L05UA is energy-efficient, making it ideal for battery-powered devices.
- High PSRR: The Power Supply Rejection Ratio (PSRR) of 69dB at 120Hz ensures minimal noise and ripple in the output voltage, contributing to high performance in sensitive applications.
- Protection Features: The NJM78L05UA includes over-temperature and short-circuit protection, enhancing the reliability and safety of the device.
- Mounting Type: The surface mount technology (SMT) package allows for easy integration into modern PCB designs.
- Moisture Sensitivity Level (MSL): With an MSL of 2 (1 Year), the NJM78L05UA is suitable for environments with moderate humidity levels.
NJM78L05UA Applications
The NJM78L05UA is well-suited for a variety of applications where a stable 5V power supply is required. Some specific use cases include:
- Consumer Electronics: Ideal for powering small electronic devices such as remote controls, portable audio devices, and low-power sensors.
- Industrial Equipment: Suitable for powering control circuits, microcontrollers, and other low-power components in industrial settings.
- Medical Devices: Can be used in medical equipment where a stable and reliable power supply is crucial, such as in monitoring devices and diagnostic tools.
- Automotive Applications: Useful in automotive electronics for powering various control modules and sensors.
- Telecommunications: Provides a stable power source for low-power communication devices and peripherals.
Conclusion of NJM78L05UA
The NJM78L05UA is a versatile and reliable linear regulator IC that offers a stable 5V output with a maximum current of 100mA. Its low quiescent current and high PSRR make it energy-efficient and suitable for noise-sensitive applications. The inclusion of over-temperature and short-circuit protection features enhances its reliability and safety. Despite being marked as obsolete, the NJM78L05UA remains a valuable component for various applications, particularly where a compact, surface-mount regulator is required. Its SOT89 package and surface mount technology make it easy to integrate into modern PCB designs, ensuring it remains a relevant choice for engineers and designers in the electronics industry.



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