Texas Instruments REG1117 Series Fixed LDO Voltage Regulator, 800mA, SOT-223 - 3.7V 15V 1.1V 3.3V

The Texas Instruments REG1117 Series provides a reliable and efficient solution for low-dropout voltage regulation in a compact surface-mount package. These fixed output regulators are designed for ease of use, requiring no external components for stable operation, making them ideal for space-constrained and power-sensitive designs.

Featuring a low dropout voltage, these regulators can maintain a stable output with a minimal input-to-output voltage differential, maximising efficiency and extending battery life in portable applications. Laser trimming during manufacture ensures excellent initial output voltage accuracy, providing a stable and precise power source for sensitive circuits without the need for adjustment.

Key Features & Benefits

• High Efficiency: An NPN output stage allows the driver transistor to contribute to the load current, enhancing overall efficiency.
• Robust Protection: Built-in internal current limiting and thermal overload protection safeguard both the regulator and your circuit from damage under fault conditions.
• Compact Footprint: Housed in a 4-pin SOT-223 package, it offers a high power-to-size ratio suitable for modern, dense PCB layouts.
• Wide Operating Range: Capable of functioning across a broad temperature spectrum from -40°C to 125°C, ensuring reliability in demanding environments.

This versatile component is a cornerstone for power management, providing a clean, steady voltage rail critical for the stable operation of digital logic, microprocessors, and analogue circuitry.

With its combination of precision, protection, and compact design, the Texas Instruments REG1117 series is a trusted choice for engineers developing high-performance electronic products.

Variant Details

• Size: 3.7V 15V 1.1V 3.3V