The UTCLD1117L-3.0V-C is a low dropout (LDO) positive voltage regulator manufactured by UTC (Unisonic Technologies Co., Ltd.). It's designed to provide a stable and regulated 3.0V output voltage. The 'L' likely denotes a specific feature or revision of the LD1117 family. This regulator is commonly employed in applications requiring a reliable 3V power supply.

Applications

• Microcontroller power supplies
• Low-voltage digital logic circuits
• Portable electronic devices
• Battery-powered systems
• Post-regulation for switching power supplies

Features

• Fixed 3.0V output voltage: Provides a precise and stable 3.0V power supply.
• Low dropout voltage: Operates efficiently with a small difference between input and output voltage.
• Output current of 800mA (typical): Delivers sufficient power for many applications.
• Over-temperature protection: Protects the regulator from overheating.
• Current limiting: Prevents excessive current draw, safeguarding the regulator and the connected load.
• Available in various packages (refer to datasheet for the '-C' package variant).

Benefits

• Stable and accurate 3.0V power supply: Ensures reliable operation of connected devices.
• Efficient power regulation: Minimizes energy waste and heat generation.
• Integrated protection features: Enhances reliability and prevents damage from common electrical faults.
• Ease of implementation: Requires minimal external components.
• Suitable for diverse environments: Operates within a wide temperature range.
• Durable design: Constructed with high-quality components for long-term performance.

Additional Details

The UTCLD1117L-3.0V-C requires an input voltage slightly higher than 3.0V to maintain regulation (e.g., 4V to 12V, depending on the load current and dropout voltage). Consult the datasheet for the precise dropout voltage specification at the required output current. Proper input and output bypass capacitors (typically ceramic or tantalum) are essential for stability. The package type ('-C' variant) influences thermal performance and mounting requirements. Always consult the official UTC datasheet for complete electrical characteristics, application guidelines, recommended component values, and package details.

Careful PCB layout is critical for optimal performance, particularly regarding thermal management. Ensure adequate heat sinking, especially when operating at higher input voltages and output currents. Follow the datasheet's recommendations for capacitor selection and placement to guarantee stable operation and minimize noise.