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AS7812AT-E1

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by Ray

Diodes Incorporated Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpower management (pmic)as7812at-e1
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Contents

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AS7812AT-E1

Diodes Incorporated · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220

AS7812AT-E1 from Diodes Incorporated, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 INPUT power_in Unregulated positive supply input. Recommended operating input voltage up to 32 V (absolute max 36 V). Bypass to GND with a 0.33 µF ceramic capacitor close to the pin for stability.
2 GND power_in Device ground / common reference for both input and output. On TO-220 the tab is electrically connected to this pin.
3 OUTPUT power_out Regulated +12 V output (11.75-12.25 V typ at TJ=25°C, IOUT up to 1 A). Requires a 0.1 µF output capacitor to GND for transient response; internally current-limited and protected by thermal shutdown and safe-area protection.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package TO-220
Category Power Management (PMIC)
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • AS7812AT-E1
  • AS7812AT-E1ADTR-G1

CAD (KiCad official)

  • Symbol: AS7812AT-E1
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (19 pp, sha256 a3112666d50a186d, retrieved 2026-08-17, tier: lcsc)
  • 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