MIC2903 GSM Supply Step Down Module Fixed Output(4.1V/3Amp)

The MIC2903 GSM Supply Step Down Module is a high-efficiency DC-DC buck converter that converts a higher DC input voltage to a stable 4.1V output suitable for powering GSM modules, microcontrollers, and other 4V-level circuits. The onboard MIC2903 regulator ensures excellent line and load regulation with low dropout voltage and thermal protection.

The module features high current handling capability up to 3A, making it ideal for powering SIM800, SIM900, and similar GSM-based communication modules that require consistent voltage during transmission bursts. Compact in design and easy to integrate, this module provides reliable performance for embedded and communication applications.