STMicroelectronics L78L Fixed Voltage Regulator 3.3V 100mA SOT-89-3

The STMicroelectronics L78L Series Linear Voltage Regulator is a robust three-terminal positive regulator designed for a wide range of applications. Employing internal current limiting and thermal shutdown, this device is highly durable and essentially indestructible under normal operating conditions. When provided with an adequate heat-sink, it can deliver an output current of up to 100mA.

This fixed voltage regulator is specifically intended for local or on-card regulation, effectively eliminating the noise and distribution problems often associated with single-point regulation. Furthermore, it can be paired with power pass elements to create high-current voltage regulators. When used as a replacement for a Zener diode and resistor combination, the L78L series offers improved performance along with lower quiescent current and reduced noise.

Key Features

• Output Voltage: Fixed 3.3V
• Maximum Output Current: 100mA
• Maximum Input Voltage: 30V
• Short-Circuit Protection: Yes
• External Components: None required
• Package Type: 3-pin SOT-89 (Surface Mount)
• Operating Temperature Range: 0°C to 125°C

Designed for ease of use and reliability, this component measures 43 mm in height, 33 mm in width, and 15 mm in depth, with a weight of 0.194 grams. It is an ideal choice for designers looking to stabilise voltage in compact electronic circuits.