✍ The L78 series of three-terminal positive regulators is available in TO-220, TO-220FP, D²PAK and DPAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type embeds internal current limiting, thermal shutdown and safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1 A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents

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▼ Applications
Power Management

▼ Features
Output current up to 1.0A
Thermal overload protection
Short circuit protection
Output transition SOA protection

▼ Specifications
Brand: STMicroelectronics
Series: L78
Product Type: Linear Voltage Regulators
Number of Outputs: 1 Output
Polarity: Positive
Operating Temperature: 0°C ~ +125°C
Mounting Style: Through Hole
Package/Case: TO-220

▼ Package Included
1 x Linear Voltage Regulator

http://www.mouser.com/ds/2/389/l78-974043.pdf