LD1117STR Low Dropout (LDO) Positive Voltage Regulator – Versatile Adjustable & Fixed Output

Description

The LD1117STR is a high-performance, low-dropout (LDO) voltage regulator designed to deliver a stable, reliable positive voltage output. Known for its exceptional versatility, this regulator is available in both fixed-output and adjustable-output configurations, making it an essential component for a wide array of power management tasks. Whether you need to regulate a standard voltage rail or require a specific, non-standard voltage, the LD1117STR provides the flexibility and stability your circuit demands.

Engineered to minimize the voltage difference between input and output, this LDO regulator significantly reduces power waste and heat dissipation, ensuring efficient energy management. Housed in a space-saving SOT-223 (SMD-4) surface-mount package, it is perfectly suited for modern, high-density PCBs where thermal performance and board real estate are critical. With built-in current limiting and thermal protection, the LD1117STR is a robust and dependable choice for professional industrial projects and hobbyist electronics alike.

Key Features

• Flexible Output Options: Available in fixed-output variants or an adjustable version, providing design freedom for any power requirement.
• Low Dropout Performance: Minimizes voltage overhead to maximize power efficiency and reduce heat buildup.
• Robust Protection: Features integrated thermal shutdown and current-limiting circuitry to safeguard your electronics during fault conditions.
• High Reliability: Delivers clean, stable voltage rails essential for sensitive microcontrollers, RF modules, and analog components.
• Compact SOT-223 (SMD-4) Package: Optimized for modern, automated PCB manufacturing, offering excellent thermal dissipation in a small footprint.

Application

• Embedded Systems: Provides stable, noise-free power for microcontrollers, FPGAs, and digital signal processors.
• Communication Equipment: Ideal for powering sensitive RF, Wi-Fi, and Bluetooth modules that require low-noise voltage rails.
• Industrial Automation: A reliable choice for localized power regulation in factory control systems, PLCs, and field sensors.
• Consumer Electronics: Perfect for power management in home appliances, set-top boxes, and portable gadgets.
• Custom Prototyping: A fundamental, must-have component for engineers and makers building reliable custom power distribution boards.

Package Includes

• 1 x LD1117STR Adjustable/Fixed Positive LDO Voltage Regulator (SOT-223/SMD-4)

Technical Specifications

Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete technical parameters, please refer to the official device datasheet.