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L7806 6 V Linear Regulator
Public Unreviewedby Ray
Fixed 6 V positive-voltage linear regulator, up to 1.5 A, in the L78xx (7800) series.
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markdownL7806
STMicroelectronics · Linear Regulator (LDO) · TO-220
The L7806 is a three-terminal fixed positive-voltage regulator from ST's L78xx (7800) series, delivering a stable 6 V output at up to 1.5 A with adequate heat sinking. It powers logic and analog rails from a higher unregulated supply, needing only input and output capacitors.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | INPUT | power_in | Unregulated positive DC input voltage. Absolute maximum V_I = 35 V for V_O up to 18 V. Recommended operating V_I ≈ 8.6 V to 25 V for the 6 V variant (dropout ≈ 2 V at 1 A). A 0.33 µF bypass capacitor to GND is recommended close to the pin to suppress input transients. |
| 2 | GROUND | power_in | Common ground reference for input and output. In TO-220 / TO-220FP / DPAK / D²PAK packages the tab is electrically connected to this GROUND pin, so any heat sink attached to the tab is at GND potential. |
| 3 | OUTPUT | power_out | Regulated +6 V output, capable of sourcing up to 1.5 A with adequate heat sinking (guaranteed 1 A). Output tolerance ±2 % on the A grade (5.88 V min / 6.12 V max at T_J = 25 °C). A 0.1 µF ceramic to GND at the pin is required for stability; larger bulk capacitance improves transient response. |
Key specifications
| Parameter | Value |
|---|---|
| Type | Fixed positive linear regulator |
| Output voltage | 6 V |
| Output current | Up to 1.5 A (with heatsink) |
| Dropout voltage | 2 V typ |
| Package | TO-220 (3-lead) |
| Operating temperature | 0 C to 125 C (junction) |
Ordering variants
Same part, different packaging or reel option.
L7806CVL7806ACVL7806ABVL7806CPL7806ACPL7806ABPL7806CDTL7806ACDTL7806ABDTL7806CD2TL7806ACD2TL7806ABD2T
CAD (KiCad official)
- Symbol:
l7806.kicad_sym - Footprint:
l7806.kicad_mod - 3D model: TO-220 body from KiCad
Package_TO_SOT_THT/TO-220-3_Vertical.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (55 pp, sha256
ccba643d1b7ced87, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).