onsemi

KA7812ETSTU

KA7812ETSTU Description

The KA7812ETSTU is a linear voltage regulator designed for applications requiring a stable 12V output with a maximum input voltage of 35V. Manufactured by onsemi, this device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a TO220-3 through-hole package. Despite being marked as obsolete, the KA7812ETSTU remains a reliable choice for various power management applications due to its robust design and performance characteristics.

KA7812ETSTU Features

• Output Type: Fixed, ensuring a consistent 12V output.
• Input Voltage Range: Capable of handling up to 35V, providing flexibility in power supply requirements.
• Output Current: Delivers a steady 1A output current, suitable for moderate power applications.
• Single Regulator: Simplifies circuit design with a single regulator.
• Positive Output Configuration: Ensures compatibility with a wide range of electronic systems.
• Low Dropout Voltage: A maximum dropout voltage of 2V at 1A (typical) allows for efficient operation even at lower input voltages.
• Low Quiescent Current: Consumes only 8 mA in quiescent state, minimizing power loss.
• High Power Supply Rejection Ratio (PSRR): Achieves 71dB at 120Hz, ensuring minimal noise and ripple in the output voltage.
• Protection Features: Equipped with over-temperature and short-circuit protection, enhancing reliability and safety.
• Moisture Sensitivity Level: MSL 1 (Unlimited), making it suitable for a variety of environmental conditions.
• Compliance: REACH unaffected, ensuring compliance with environmental regulations.
• Mounting Type: Through-hole mounting provides robust mechanical stability and ease of integration into printed circuit boards.

KA7812ETSTU Applications

The KA7812ETSTU is ideal for a range of applications where a stable 12V output is required. Its robust design and protection features make it suitable for:

• Consumer Electronics: Powering devices such as audio amplifiers, set-top boxes, and other consumer electronics that require a stable power supply.
• Industrial Equipment: Reliable power management for industrial control systems, sensors, and actuators.
• Telecommunications: Providing stable power to communication devices and infrastructure.
• Automotive: Suitable for automotive applications where a stable 12V supply is critical for various electronic components.
• Medical Devices: Ensuring reliable power for medical equipment that requires precise voltage regulation.

Conclusion of KA7812ETSTU

The KA7812ETSTU is a versatile and reliable linear voltage regulator that offers a stable 12V output with a maximum input voltage of 35V. Its low dropout voltage, high PSRR, and robust protection features make it an excellent choice for a variety of applications, from consumer electronics to industrial equipment. Despite being marked as obsolete, the KA7812ETSTU remains a dependable option for engineers and designers looking for a stable and efficient power management solution.