STMicroelectronics Voltage Regulator 18V SOT-223 4-Pin LDL1117S50R

STMicroelectronics LDL1117S50R is a high-performance voltage regulator designed for reliable power management in electronic circuits. Featuring a compact SOT-223 4-pin surface mount package, it can deliver a maximum current of 1.2 A with an input voltage range spanning from 2.5 V to 18 V, making it suitable for a wide array of applications including embedded systems, industrial electronics, and power supply designs.

The regulator achieves a low typical dropout voltage of 350 mV at full load current, ensuring stable output voltages under varying supply conditions. It also exhibits an excellent power supply rejection ratio of 87 dB at 120 Hz frequency, effectively minimizing the impact of input voltage fluctuations and noise.

Robust internal protections such as current limiting, safe operating area (SOA), and thermal shutdown safeguard the device and connected circuitry from damage due to overcurrent or overheating. The device withstands operating temperatures ranging from -40 °C to 125 °C, confirming its suitability for harsh environments.

Available in fixed output voltage variants including 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V, the LDL1117S50R accommodates diverse voltage requirements in system designs. Its small and lightweight SOT-223 package measures 6.7 mm in length, 3.7 mm in width, and 1.7 mm in height, facilitating high-density PCB layouts.

Supports input voltage range from 2.5 V to 18 V for versatile applications. Typical dropout voltage of 350 mV at 1.2 A current ensures efficient regulation. High power supply rejection ratio of 87 dB at 120 Hz for low noise operation.

Built-in current limit and thermal protections enhance device reliability. Operating temperature range from -40 °C up to 125 °C suits industrial environments. Available fixed output voltages include 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3 V, 3.3 V, and 5 V.

Surface mount SOT-223 package measures 6.7 mm length, 3.7 mm width, and 1.7 mm height.

This voltage regulator is widely utilized in industrial, electronic, and power management applications that demand stable and reliable DC voltage outputs. It offers an efficient solution for power supply regulation in embedded systems, automotive electronics (non-automotive grade), consumer devices, and various electronic instrumentation.

Explore a wide selection of power management components and voltage regulators at EnvMart for your electronic design projects and industrial requirements.

Explore more products in our Voltage Regulator IC category.