STMicroelectronics L78L Series Fixed 12V 100mA Linear Voltage Regulator SOT-89
STMicroelectronics L78L 12V 100mA fixed linear voltage regulator in SOT-89-3 surface mount package, with 35V maximum input voltage.
The STMicroelectronics L78L Series 12V 100mA Linear Voltage Regulator is a fixed-voltage, 3-terminal positive linear regulator supplied in a SOT-89-3 surface mount package.
Overview
The L78L Series provides fixed 12V output regulation with a maximum output current of 100mA when paired with an adequate heat sink. It is designed as a local or on-card voltage regulator, helping to reduce noise and address power distribution issues associated with single-point regulation systems. It is well suited to cleaning up power supplies to sensitive components.
Key Features
- Internal current limiting, thermal shutdown, and short-circuit protection
- No external components required for basic operation
- Low quiescent current and reduced output noise
- Can be used with external power pass elements to build high-current regulator circuits
- Functions as a drop-in replacement for Zener diode and resistor combinations
Specifications
- Nominal Output Voltage: 12V
- Maximum Input Voltage: 35V
- Operating Temperature Range: 0°C to +125°C
- Mounting Style: Surface Mount (SMD)
- Package: SOT-89-3
- Weight: 0.195 g
The STMicroelectronics L78L Series 12V 100mA regulator suits compact electronic designs where simplicity of use and reduced board space are required.
- Local voltage regulation
- On-card voltage regulation
- Cleaning up power supplies to sensitive components
- High-current voltage regulator circuits with external power pass elements
- Output Type: Fixed Voltage
- Nominal Output Voltage: 12V
- Maximum Output Current: 100mA
- Maximum Input Voltage: 35V
- Protection Features: Internal current limiting, thermal shutdown, and short-circuit protection
- Mounting Style: Surface Mount (SMD)
- Package: SOT-89-3
- Terminals: 3
- Operating Temperature Range: 0°C to +125°C
- Key Benefit: Low-noise, low-quiescent-current alternative to Zener diode and resistor combinations
- Weight: 0.195 g
- Width: 3.3
- Depth: 1.5
- Height: 4.3
Always follow local regulations and product guidance.
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