onsemi

KA7809ERTF

KA7809ERTF Description

The KA7809ERTF is a linear voltage regulator designed for applications requiring a stable 9V output at a current of up to 1A. Manufactured by onsemi, this regulator features a fixed output configuration, ensuring consistent performance across a wide range of input voltages up to 35V. The KA7809ERTF is housed in a DPAK package, which is suitable for surface-mount applications, providing robust thermal performance and ease of integration into compact designs.

KA7809ERTF Features

• Output Type: Fixed, ensuring a stable 9V output.
• Input Voltage Range: Up to 35V, offering flexibility in power supply options.
• Output Current: 1A, capable of driving a variety of electronic devices.
• Number of Regulators: Single regulator, simplifying circuit design.
• Output Configuration: Positive, suitable for applications requiring a positive voltage supply.
• Voltage Dropout: 2V at 1A (Typ), ensuring efficient operation even at lower input voltages.
• Quiescent Current: 8 mA, minimizing power consumption in standby mode.
• Power Supply Rejection Ratio (PSRR): 71dB at 120Hz, providing excellent noise rejection.
• Protection Features: Over-temperature and short-circuit protection, enhancing reliability and safety.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), suitable for a wide range of environmental conditions.
• Package: DPAK, optimized for surface-mount technology and thermal management.
• REACH Status: REACH Unaffected, ensuring compliance with environmental regulations.
• Mounting Type: Surface Mount, ideal for compact and high-density designs.
• Product Status: Obsolete, but still available for legacy applications and existing designs.

KA7809ERTF Applications

The KA7809ERTF is ideal for a variety of applications where a stable 9V supply is required. Its robust design and protection features make it suitable for:

• Industrial Equipment: Powering sensors, actuators, and control modules.
• Consumer Electronics: Supplying power to devices such as radios, amplifiers, and small appliances.
• Telecommunications: Providing stable power to communication modules and peripherals.
• Automotive Electronics: Suitable for in-vehicle electronic systems requiring a reliable power source.
• Medical Devices: Powering non-critical medical equipment and monitoring devices.

Conclusion of KA7809ERTF

The KA7809ERTF is a reliable and efficient linear voltage regulator that offers a stable 9V output with a maximum input voltage of 35V. Its DPAK package and surface-mount design make it ideal for compact and high-density applications. The regulator's over-temperature and short-circuit protection features enhance its reliability and safety, making it suitable for a wide range of industrial, consumer, and automotive applications. Despite being marked as obsolete, the KA7809ERTF remains a valuable component for legacy systems and existing designs, ensuring continued availability and support from onsemi.