The AMS1117-3.3V is a voltage regulator IC that is used to provide a stable 3.3V output voltage from a varying input voltage. It is a low-dropout (LDO) regulator, meaning that it can maintain a stable output voltage even when the input voltage is only slightly higher than the desired output voltage. The AMS1117-3.3V is packaged in a SOT-223 package, which is a small, surface-mount package that is commonly used for high-power devices.

The AMS1117-3.3V is a 3-terminal regulator that includes an error amplifier, a reference voltage source, and a pass transistor. It has a maximum output current of 1A and can accept input voltages ranging from 3.5V to 30V. It is commonly used in a variety of applications, including power supplies, battery chargers, and portable electronic devices.

This is a small and easy to use voltage regulator.