LM1117-3.3 is an SMD linear voltage regulator IC that can be used to convert a higher DC voltage into a stable 3.3V output for powering ESP8266/ESP32, sensors, and other 3.3V logic circuits. It is commonly used for voltage regulation and power supply filtering in embedded and general electronics projects. For using it as a power regulator, it can typically provide up to 800mA output current (with proper heat dissipation) and needs at least around 1.2V higher input than 3.3V to regulate properly.
Specification/Features :
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Type: Linear Voltage Regulator (LDO)
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Output Voltage: Fixed 3.3V
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Package: SMD (commonly SOT-223)
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Maximum Output Current: up to 800mA (depends on cooling/PCB area)
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Dropout Voltage: typically around 1.1V to 1.2V
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Input Voltage Range: up to 15V (recommended lower for less heating)
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Protections: thermal shutdown and current limiting
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Common Uses: 3.3V supply for ESP8266/ESP32, sensors, modules, logic circuits
Package Includes:
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1 x LM1117-3.3 Linear Voltage Regulator IC (SMD)