79L05 Negative 5V 100mA Voltage Regulator SOT-89
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Prices updated: 13 Oct 2026
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About this product
79L05 is a three-terminal fixed negative voltage regulator that outputs -5 V at up to 100 mA. It includes current limiting and thermal shutdown protection, and is used for local regulation of a negative supply rail in circuits that need one. This listing is for the SMD SOT-89 package.
Specifications
- Output voltage
- -5 V
- Output current
- 100 mA max
- Regulator type
- Fixed negative, linear
- Package
- SOT-89 SMD
- Protection
- Current limiting, thermal shutdown
Frequently asked questions
How do I wire it?
It is a negative regulator: the input is a negative voltage relative to ground and the output is -5 V. Confirm the SOT-89 pinout in the datasheet for your exact part before wiring.
What is the maximum output current?
The rated maximum is 100 mA, and the listing notes that adequate heatsinking is needed to reach it. For more current, use a higher-rated regulator.
