LD1117V33 in LM1117 / LD1117 LDO Family
The LD1117V33 is a popular low-dropout (LDO) linear voltage regulator produced primarily by STMicroelectronics. It is designed to provide a fixed 3.3V output from a higher DC input voltage, supporting load currents up to 800mA. Known for its reliability and simplicity, this component is a staple in power management circuits, offering internal current and thermal limiting to protect against overloads while maintaining a low dropout voltage of typically 1.1V at full load.
Variants in This Sub-Family
Variants within the LD1117 family primarily differ in output voltage options, including fixed values like 1.2V, 1.8V, 2.5V, 5.0V, or an adjustable version. Packaging options range from the through-hole TO-220 to surface-mount SOT-223 and DPAK packages, which significantly impact thermal resistance and maximum power dissipation capabilities. Some industrial variants offer wider operating temperature ranges to meet specific environmental requirements.
