Taiwan Semiconductor

TS78L09ACY

TS78L09ACY Description

The TS78L09ACY is a high-performance, 3-terminal linear voltage regulator designed by Taiwan Semiconductor Corporation. This device is specifically tailored for applications requiring a stable 9V output voltage with a maximum output current of 100mA. The TS78L09ACY operates within a wide input voltage range, up to a maximum of 35V, making it highly versatile for various power management needs. Its fixed output configuration ensures consistent performance, while its surface-mount packaging (Tape & Reel) facilitates easy integration into compact designs.

TS78L09ACY Features

• Operating Temperature Range: The TS78L09ACY is designed to operate reliably within a temperature range of 0°C to 150°C (TJ), making it suitable for applications in extreme environments.
• Low Quiescent Current: With a quiescent current of only 6mA, the TS78L09ACY minimizes power consumption, which is crucial for battery-operated and energy-efficient systems.
• High Power Supply Rejection Ratio (PSRR): The regulator boasts a PSRR of 57dB at 120Hz, effectively filtering out noise and ripple from the input supply, ensuring a clean and stable output voltage.
• Low Dropout Voltage: A maximum dropout voltage of 1.7V at 100mA allows the TS78L09ACY to maintain regulation even when the input voltage is close to the output voltage, enhancing efficiency in low-headroom applications.
• Protection Features: The TS78L09ACY includes over-current and over-temperature protection, safeguarding the device and downstream components from potential damage.
• Current Limit Control: This feature ensures that the regulator can handle transient overloads without failure, further enhancing system reliability.
• Compliance and Status: The TS78L09ACY is REACH unaffected and ROHS3 compliant, adhering to stringent environmental and safety standards. It is also classified under ECCN EAR99 and HTSUS 8542.39.0001.

TS78L09ACY Applications

The TS78L09ACY is ideal for a variety of applications where a stable and efficient power supply is essential. Some specific use cases include:

• Consumer Electronics: Ideal for powering small electronic devices such as portable audio equipment, handheld gaming consoles, and smart home devices.
• Industrial Control Systems: Suitable for powering sensors, actuators, and other components in industrial automation and control systems.
• Telecommunications: Can be used in base stations, routers, and other telecom equipment where a reliable 9V supply is required.
• Automotive Electronics: Given its wide operating temperature range and robust protection features, the TS78L09ACY is well-suited for automotive applications such as infotainment systems and electronic control units.
• Medical Devices: Provides a stable power supply for medical equipment like diagnostic tools and portable medical devices, ensuring reliable operation.

Conclusion of TS78L09ACY

The TS78L09ACY from Taiwan Semiconductor Corporation is a robust and versatile linear voltage regulator that offers a combination of high performance, reliability, and efficiency. Its low quiescent current, high PSRR, and low dropout voltage make it an excellent choice for applications where power efficiency and stability are paramount. The inclusion of over-current and over-temperature protection ensures that the device can withstand harsh operating conditions, making it a reliable solution for a wide range of power management needs. Whether used in consumer electronics, industrial systems, or automotive applications, the TS78L09ACY delivers consistent performance and value, making it a standout choice in its category.