5V, 100mA Step-Down Voltage Regulator D45V1E1F5

The **Pololu 5V, 100mA Step-Down Voltage Regulator D45V1E1F5** is a miniature and efficient buck regulator that outputs a fixed 5V from input voltages between 4.5V and 45V. Designed for low-current applications, it can provide up to 100?mA of continuous current, making it ideal for powering lightweight sensors, small logic circuits, or low-power microcontrollers. Despite its very small footprint, the regulator includes essential protections such as over-current limiting, thermal shutdown, and under-voltage lockout. Its high efficiency, ultra-compact size, and wide input range make it a practical choice for embedded and space-constrained designs that require a dependable 5V supply.