ONSEMI 1.8V 250mA Low Dropout (LDO) Voltage Regulator

The ONSEMI 1.8V 250mA Low Dropout (LDO) Voltage Regulator is a highly efficient and compact voltage regulation solution designed for modern electronic applications where stable and clean power is critical. It provides a fixed 1.8V output, capable of delivering up to 250mA of current, making it ideal for powering microcontrollers, sensors, and other low-voltage integrated circuits. With a remarkably low dropout voltage of just 180mV, it excels in battery-powered or energy-sensitive designs, allowing the system to operate effectively even as the input voltage approaches the output level, thereby maximising battery life and operational efficiency.

This surface-mount device (SMD) features a compact XDFN-4 package, optimising its footprint on densely populated printed circuit boards (PCBs). Its positive output polarity ensures straightforward integration into standard power supply circuits. The regulator accepts a wide input voltage range from 1.9V to 5.5V, offering significant flexibility for various power sources, including single-cell lithium-ion batteries or regulated 3.3V/5V rails. Built to operate reliably in demanding conditions, it supports a broad temperature range from -40°C to 125°C, ensuring performance stability in industrial, automotive, and consumer electronics environments.

Key Advantages

• Low Dropout: A typical dropout voltage of 180mV @ current ensures efficient operation and extends battery life in portable devices.
• Stable Output: Provides a precise and fixed 1.8V output, essential for the reliable operation of sensitive digital components.
• Wide Input Range: Accommodates inputs from 1.9V to 5.5V, simplifying power supply design.
• Robust Construction: Engineered for surface-mount assembly and reliable performance across a wide industrial temperature range.