onsemi

KA78L05AZBU

KA78L05AZBU Description

The KA78L05AZBU is a fixed-output linear voltage regulator designed by onsemi, a leading manufacturer in the electronics industry. This regulator is part of the KA78L05 family and offers a fixed output voltage of 5V with a maximum output current of 100mA. It is housed in a TO92-3 package, making it suitable for through-hole mounting. The KA78L05AZBU is designed to operate with an input voltage range up to 30V, ensuring compatibility with a wide range of power sources. This regulator also features over-temperature and short-circuit protection, enhancing its reliability and safety in various applications.

KA78L05AZBU Features

• Output Type: Fixed
• Voltage - Input (Max): 30V
• Current - Output: 100mA
• Output Configuration: Positive
• Voltage - Output (Min/Fixed): 5V
• Current - Quiescent (Iq): 5.5 mA
• PSRR: 80dB (120Hz)
• Protection Features: Over Temperature, Short Circuit
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Mounting Type: Through Hole
• Package: Bulk
• Product Status: Obsolete
• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 8542.39.0001

The KA78L05AZBU stands out due to its high power supply rejection ratio (PSRR) of 80dB at 120Hz, which ensures excellent noise filtering and stable output voltage. The low quiescent current of 5.5 mA makes it suitable for low-power applications, contributing to energy efficiency. Additionally, the regulator's over-temperature and short-circuit protection features enhance its robustness and reliability, making it ideal for applications where stability and safety are paramount.

KA78L05AZBU Applications

The KA78L05AZBU is ideal for a variety of applications that require a stable 5V output with low power consumption. Its through-hole mounting type makes it suitable for both prototyping and production environments. Some specific use cases include:

• Consumer Electronics: Ideal for powering small electronic devices such as USB chargers, portable audio devices, and low-power peripherals.
• Industrial Equipment: Suitable for low-power control circuits, sensors, and microcontroller power supplies in industrial settings.
• Automotive Applications: Can be used in automotive electronic systems where a stable 5V supply is needed, such as in dashboard electronics and infotainment systems.
• Telecommunications: Ideal for powering low-power communication modules and IoT devices that require a reliable power source.

Conclusion of KA78L05AZBU

The KA78L05AZBU is a versatile and reliable linear voltage regulator that offers a fixed 5V output with a maximum current of 100mA. Its high PSRR, low quiescent current, and robust protection features make it an excellent choice for a wide range of applications. Despite being marked as obsolete, the KA78L05AZBU remains a valuable component for engineers and designers seeking a stable and efficient power solution. Its compatibility with various power sources and its through-hole mounting type further enhance its usability in both development and production environments.