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AMS1117T-3.3G

Public Unreviewed

by Ray

HANSCHIP semiconductor AMS1117T 3 3G Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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AMS1117T-3.3G

HANSCHIP semiconductor · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220-3

AMS1117T-3.3G from HANSCHIP semiconductor, in a TO-220-3. 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 GND power_in Ground / regulator reference return. On fixed-output AMS1117-x.x parts (including the 3.3 V variant) this pin is the device ground; on AMS1117-ADJ the same pin becomes the ADJ feedback input (VREF = 1.25 V nominal). Connect directly to the system ground plane.
2 VOUT power_out Regulated 3.3 V output, 0-800 mA. Requires at least a 22 µF tantalum output capacitor to ground for stability (smaller values acceptable on fixed versions per datasheet). The TO-220 metal tab is electrically connected to this pin (TAB is VOUT).
3 VIN power_in Unregulated input supply, absolute max 15 V, recommended operating up to 12 V. Requires ≥4.75 V for the 3.3 V variant to remain in regulation at full load (VDROP ≈ 1.2 V at 800 mA). A 10 µF bulk input capacitor to ground is recommended.

Key specifications

Parameter Value
Manufacturer HANSCHIP semiconductor
Package TO-220-3
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • AMS1117T-3.3G
  • AMS1117-3.3RG
  • AMS1117-1.2RG
  • AMS1117-1.5RG
  • AMS1117-1.8RG
  • AMS1117-2.5RG
  • AMS1117-5.0RG
  • AMS1117-ADJRG
  • AMS1117PK-3.3RG
  • AMS1117PK-1.2RG
  • AMS1117PK-1.5RG
  • AMS1117PK-1.8RG
  • AMS1117PK-2.5RG
  • AMS1117PK-5.0RG
  • AMS1117PK-ADJRG
  • AMS1117KTP-3.3RG
  • AMS1117KTP-1.2RG
  • AMS1117KTP-1.5RG
  • AMS1117KTP-1.8RG
  • AMS1117KTP-2.5RG
  • AMS1117KTP-5.0RG
  • AMS1117KTP-ADJRG
  • AMS1117DT-3.3RG
  • AMS1117DT-1.2RG
  • AMS1117DT-1.5RG
  • AMS1117DT-1.8RG
  • AMS1117DT-2.5RG
  • AMS1117DT-5.0RG
  • AMS1117DT-ADJRG
  • AMS1117D-3.3RG
  • AMS1117D-3.3RG4
  • AMS1117D-1.2RG
  • AMS1117D-1.5RG
  • AMS1117D-1.8RG
  • AMS1117D-2.5RG
  • AMS1117D-5.0RG
  • AMS1117D-ADJRG

CAD (KiCad official)

  • Symbol: AMS1117T-3.3G
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220-3 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ams1117t-3-3g.step 83 KB You want the bare part, or you mark your own boards.
ams1117t-3-3g-etched.step 967 KB You want the part with AMS1117T-3.3G already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 262 faces against 48 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: HANSCHIP semiconductor datasheet (12 pp, sha256 eb1f648ce5a0d54d, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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