The UR133AG-3,3V-B is a fixed voltage linear regulator manufactured by UTC (Unisonic Technologies Co., Ltd.). It is designed to provide a stable and accurate 3.3V output voltage from a higher input voltage. This regulator is part of the UR133 series and likely represents a specific grade or version (denoted by 'B') within that series, possibly indicating tighter tolerances, improved temperature characteristics, or a different packaging option compared to the base UR133AG-3 model. The 'B' suffix could also relate to tape and reel specifications.

Applications

• Microcontroller power supplies: Providing regulated 3.3V power to operate microcontrollers in various embedded systems, particularly those requiring 3.3V logic levels.
• Battery-powered devices: Regulating voltage in portable devices to maintain stable operation from battery sources, ensuring compatibility with 3.3V components.
• Linear regulation in electronic circuits: Serving as a linear voltage regulator in a wide range of electronic circuits that necessitate a stable 3.3V power supply.
• Post-regulation for switching power supplies: Improving the stability and reducing noise in the output of switching power supplies by providing a secondary stage of linear regulation.
• Interface circuits: Powering interface circuits that require a precise 3.3V supply for reliable communication and data transfer.

Features

• Fixed 3.3V output: Provides a precisely regulated 3.3V output voltage.
• Low dropout voltage: Maintains regulation even when the input voltage is only slightly higher than the output voltage, enhancing efficiency.
• Over-temperature protection: Includes thermal shutdown to protect the regulator from overheating and potential damage.
• Overcurrent protection: Limits the output current to prevent damage to the regulator and connected devices in case of excessive load.
• Short-circuit protection: Safeguards the regulator against damage caused by a short circuit at the output.
• High accuracy: Ensures a stable and accurate 3.3V output voltage, vital for sensitive electronic components.

Benefits

• Stable 3.3V power: Provides a consistent and reliable 3.3V supply, crucial for the proper operation of electronic circuits.
• Enhanced protection: Over-temperature, overcurrent, and short-circuit protection contribute to the robustness and longevity of the regulator and the overall system.
• Efficient voltage regulation: Low dropout voltage enables efficient power conversion, particularly beneficial in battery-operated applications.
• Easy integration: The regulator can be easily integrated into various electronic circuits due to its standard packaging and straightforward design.
• Improved system reliability: Protects sensitive electronic components from voltage fluctuations and surges, improving overall system performance.

Additional Details

The UR133AG-3,3V-B is likely available in a standard through-hole or surface-mount package. Refer to the manufacturer's datasheet for comprehensive specifications, including maximum input voltage, output current capabilities, dropout voltage characteristics, quiescent current consumption, and operating temperature ranges. The datasheet will also provide specific details about the 'B' suffix designation, such as any variations in performance or packaging.