3.3V 100mA Low Dropout Voltage Regulator – L78L33ACZ

Reliable 3.3V LDO Regulator for Everyday Electronics

Upgrade your DIY and hobby electronics projects with the L78L33ACZ, a compact 3.3V low dropout voltage regulator from STMicroelectronics. Designed for ease of use and efficient performance, this linear voltage regulator is perfect for powering microcontrollers, sensors, and other low-power components.

Key Features of the L78L33ACZ 3.3V Voltage Regulator

• Stable 3.3V Output
• Up to 100mA continuous current
• Low dropout design: Operates with input voltages only 1.7V higher than output
• Durable TO-92 3-pin package
• Thermal shutdown for worry-free operation
• Built-in short-circuit and current limiting protection

Technical Specifications

• Manufacturer: STMicroelectronics
• Manufacturer Part Number: L78L33ACZ
• Package: TO-92 (Transistor style, 3-pin)
• Output Voltage: 3.3V DC
• Output Current: 100mA max
• Max Input Voltage: 30V DC
• Dropout Voltage: Only 1.7V higher than output required
• On-Board Protection: Thermal shutdown, short circuit protection, current limiting
• Datasheet: View PDF

Easy to Use in DIY Projects

The L78L33ACZ 3.3V LDO regulator is simple to install with just three pins: input, ground, and output. Its compact size fits easily into breadboards and project enclosures, making it a top choice for beginners and experienced makers alike. Reliable protections ensure your circuits stay safe in case of wiring mistakes.

Applications

• Arduino and Raspberry Pi add-on circuits
• Powering Wi-Fi modules, sensors, or logic chips
• Low-power gadget repair and upgrades
• Battery-powered DIY electronics