The TS78M09CP is a three-terminal positive voltage regulator manufactured by Taiwan Semiconductor. It is designed to provide a stable and reliable 9V DC output voltage. This regulator is part of the TS78M series, offering various fixed output voltages, and is a common choice for ensuring a consistent power supply in electronic circuits, especially for components that are sensitive to voltage fluctuations.

Applications

• Microcontroller Power Supplies: Providing a stable 9V supply for microcontrollers and associated circuits.
• Powering Operational Amplifiers: Ensuring a steady voltage source for operational amplifiers used in signal conditioning and amplification.
• Small Appliance Voltage Regulation: Regulating voltage in low-power consumer devices requiring a 9V supply.
• Battery Charging Circuits: Stabilizing voltage for battery charging, suitable for various battery types.
• Instrumentation and Measurement Equipment: Guaranteeing accurate voltage for precise readings in testing devices and other measurement systems.

Features

• Fixed 9V Output: Delivers a constant 9V output voltage.
• Internal Short-Circuit Current Limiting: Protects the regulator and connected circuitry from short circuits by limiting current flow.
• Thermal Overload Protection: Shuts down the regulator when the internal temperature exceeds safe limits, preventing overheating and damage.
• Output Transistor Safe-Area Compensation: Maintains operation within the safe operating area of the output transistor, enhancing reliability.
• TO-220 Package: Allows for easy mounting and effective heatsinking for thermal management.

Benefits

• Stable Voltage Supply: Ensures consistent performance of connected devices by mitigating the effects of input voltage fluctuations.
• Enhanced Reliability: Overload protection features extend the lifespan of both the regulator and connected circuits.
• Ease of Use: Requires minimal external components, simplifying circuit design.
• Cost-Effective Solution: Offers an affordable voltage regulation solution for a variety of applications.
• Wide Operating Temperature Range: Functions reliably across a range of environmental conditions, suitable for diverse uses.

The TS78M09CP is packaged in a TO-220 package, facilitating straightforward mounting and heatsinking. It is a durable and dependable linear voltage regulator suitable for a variety of applications. Operation at higher current levels may require a heatsink. The regulator is designed to handle input voltages up to 35V, with a typical dropout voltage of around 2V, meaning the input voltage should be at least 11V to ensure proper regulation.