The UPC78L12T-E2-AZ is a three-terminal positive voltage regulator manufactured by Renesas Electronics America. This low-current regulator is designed to provide a fixed 12V output voltage with good accuracy and stability. It is typically used in applications where a low current, regulated voltage is needed, such as in small electronic devices or as a reference voltage source.

Applications

• Low-Current Power Supplies: Used in applications requiring a regulated 12V supply at low current.
• Reference Voltage Source: Provides a stable 12V reference voltage for various circuits.
• Portable Devices: Suitable for use in battery-powered devices where low power consumption is critical.
• Microcontroller Power: Powers microcontrollers and related circuitry.
• Sensor Power: Provides regulated power for sensors and transducers.

Features

• Fixed 12V Output: Provides a stable and accurate 12V output voltage.
• Low Output Current: Designed for low-current applications (typically up to 100mA).
• Three-Terminal Design: Simple three-terminal configuration for easy integration.
• Internal Current Limiting: Includes internal current limiting to protect against overloads.
• Thermal Shutdown: Features thermal shutdown protection to prevent overheating.

Benefits

• Stable Voltage Supply: Ensures a consistent and reliable power supply for low-current applications.
• Simplified Circuit Design: Easy to integrate into existing circuits, streamlining the design process.
• Protection Against Overload: Internal current limiting protects against overload conditions.
• Low Power Consumption: Ideal for battery-powered and energy-sensitive applications.
• Cost-Effective Solution: Provides a cost-effective solution for voltage regulation at low currents.

Additional Details

The UPC78L12T-E2-AZ typically requires a minimum input voltage of around 14.5V to maintain a stable 12V output. The maximum input voltage is generally around 30V. This regulator is commonly available in a TO-92 package. The datasheet should be consulted for accurate specifications, thermal derating information, and recommended application circuits. Since it's a low current regulator, heat sinking is usually not required, but proper thermal management should still be considered based on the application environment.