3.3V, 100mA Step-Down Voltage Regulator D45V1E1F3

The **Pololu 3.3V, 100mA Step-Down Voltage Regulator D45V1E1F3** is an ultra-compact and efficient buck converter that provides a fixed 3.3V output from input voltages ranging from 4.5V to 45V. Designed for low-power applications, it can supply up to 100?mA of continuous current, making it ideal for powering small sensors, microcontrollers, or communication modules. Despite its tiny size, it features built-in protections including over-current limiting, thermal shutdown, and under-voltage lockout. Its wide input range, low quiescent current, and reliable 3.3V output make it a strong choice for space-constrained and battery-operated embedded systems.