78L05 5V Fixed. Positive voltage regulator.

78L05 5V Voltage Regulator – 100mA Linear Regulator (TO-92)

The L78L05 is a compact 5V linear voltage regulator designed to provide a stable output from a higher input voltage. With built-in current limiting and thermal shutdown, it is a reliable solution for powering microcontrollers, sensors, and small electronic circuits.

Key Features

• Fixed 5V output voltage
• Output current up to 100mA
• Built-in thermal overload protection
• Short-circuit protection
• No external components required for basic operation
• Compact TO-92 package for easy integration

What’s Included

• 1 × L78L05 5V Voltage Regulator (TO-92 package)

Curriculum Links

Australian Curriculum (v9.0):

• ACTDEK042 – Investigate electrical systems
• ACTDEP050 – Produce designed solutions

Victorian Curriculum:

• VCDSTS039 – Technologies systems
• VCDSCD041 – Producing solutions

NSW (Stage 4–5 Technology Mandatory):

• • TE4-2DP – Designs and produces solutions

• TE4-3DP – Safe use of materials and components

Classroom Use / Learning Outcomes

Students will:

• Regulate voltage for stable circuit operation
• Understand power supply design
• Explore concepts of current limiting and protection
• Build reliable electronic systems

Teacher Benefits

• Simple introduction to voltage regulation
• Minimal components required
• Reliable and robust for classroom use
• Supports foundational electronics learning

Perfect For

• Power supply circuits
• Arduino and sensor projects
• Voltage regulation lessons
• Electronics prototyping