The UTC78D12AL-TN3-R is a three-terminal positive voltage regulator manufactured by Unisonic Technologies Co., Ltd. (UTC). As a member of the UTC78D series, this regulator is designed to provide a fixed 12V output voltage. The 'AL' suffix often indicates specific feature variations or tolerances within the series, while the '-TN3-R' likely denotes a specific packaging format, usually tape and reel, for automated assembly. It's utilized in various electronic circuits to ensure a stable voltage supply, protecting sensitive components from potentially damaging voltage fluctuations. The regulator's robust construction and integrated protection mechanisms make it a dependable choice for a wide range of applications.

Applications

• Regulated power supplies for microcontrollers and digital circuits.
• Voltage regulation in audio and video equipment.
• Industrial control systems where a stable 12V supply is required.
• Battery chargers for 12V applications.
• Automotive electronics requiring a regulated 12V supply.

Features

• Fixed 12V output voltage: Delivers a stable and regulated 12V DC output.
• Low dropout voltage: Maintains efficient regulation even when the input voltage is close to the output voltage.
• Short-circuit protection: Protects the regulator and connected circuits from damage due to short circuits.
• Thermal overload protection: Prevents overheating and potential damage to the regulator.
• Overvoltage protection: Shuts down the regulator if the input voltage exceeds safe operating limits.
• High ripple rejection: Minimizes the impact of input voltage fluctuations on the output voltage.

Benefits

• Provides a stable and reliable power supply: Ensures consistent performance of connected electronic devices.
• Protects against electrical damage: Safeguards sensitive components from voltage spikes and fluctuations.
• Simplifies circuit design: Reduces the need for external components for voltage regulation.
• Enhances system reliability: Improves the overall durability and lifespan of electronic products.
• Cost-effective voltage regulation: Offers a dependable solution at an economical price point.

Additional Details

The UTC78D12AL-TN3-R typically comes in a TO-252 or similar surface-mount package, with the '-TN3-R' likely specifying Tape and Reel packaging. The input voltage range is generally between 14.5V and 30V, though consulting the official UTC datasheet is crucial for precise values. The output current is usually rated up to 1A, and thermal management is critical for safe operation. A heat sink might be required, depending on the power dissipation. The operating temperature range typically spans from -40°C to +125°C. It's essential to refer to the official UTC datasheet for the most accurate and up-to-date specifications. Input and output bypass capacitors are often recommended for enhanced stability and improved transient response.