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L7806

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.

  • L7806CV
  • L7806ACV
  • L7806ABV
  • L7806CP
  • L7806ACP
  • L7806ABP
  • L7806CDT
  • L7806ACDT
  • L7806ABDT
  • L7806CD2T
  • L7806ACD2T
  • L7806ABD2T

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).

Datasheet PDF