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AMS1117A-3.3V
Public Made by Adomby adom
HX hengjiaxing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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ams1117a-3-3v: manufacturer 'HX hengjiaxing' (was 'HX hengjiaxing AMS1117A 3 3V': the MPN had been folded in)
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1mo ago
AMS1117A-3.3V
HX hengjiaxing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3
AMS1117A-3.3V from HX hengjiaxing, in a SOT-223-3. 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 / common return for the regulator. On the fixed-output AMS1117A-3.3V this pin is the device ground reference (labeled 'Vss/ADJ' on the package; the ADJ function applies only to the -ADJ variant). |
| 2 | VOUT | power_out | Regulated 3.3V output (3.234-3.366V, ±2%) capable of sourcing up to 1A continuous (1.4A max). Requires a 10µF output capacitor for stability. |
| 3 | VIN | power_in | Unregulated input supply. Recommended operating input up to 15V (absolute max 18V); requires ≥4.8V to maintain 3.3V regulation at load (dropout 1.3V typ at 1A). Bypass with a 10µF tantalum capacitor to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HX hengjiaxing |
| Package | SOT-223-3 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
AMS1117A-3.3VLAMS1117A-3.3V33LAMS1117A-3.3VOAMS1117A-3.3V33O
CAD (KiCad official)
- Symbol:
AMS1117A-3.3V - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223-3 (KiCad packages3D, STEP)
- 3D model files:
ams1117a-3-3v-etched.step/ams1117a-3-3v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ams1117a-3-3v.step/ams1117a-3-3v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HX hengjiaxing datasheet (9 pp, sha256
cd3d5a1ea037be22, 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).
# AMS1117A-3.3V
**HX hengjiaxing** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3
AMS1117A-3.3V from HX hengjiaxing, in a SOT-223-3. 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 / common return for the regulator. On the fixed-output AMS1117A-3.3V this pin is the device ground reference (labeled 'Vss/ADJ' on the package; the ADJ function applies only to the -ADJ variant). |
| 2 | VOUT | power_out | Regulated 3.3V output (3.234-3.366V, ±2%) capable of sourcing up to 1A continuous (1.4A max). Requires a 10µF output capacitor for stability. |
| 3 | VIN | power_in | Unregulated input supply. Recommended operating input up to 15V (absolute max 18V); requires ≥4.8V to maintain 3.3V regulation at load (dropout 1.3V typ at 1A). Bypass with a 10µF tantalum capacitor to GND. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HX hengjiaxing |
| Package | SOT-223-3 |
| Category | PMIC |
| Pins | 3 |
## Ordering variants
Same part, different packaging or reel option.
- `AMS1117A-3.3VL`
- `AMS1117A-3.3V33L`
- `AMS1117A-3.3VO`
- `AMS1117A-3.3V33O`
## CAD (KiCad official)
- Symbol: `AMS1117A-3.3V`
- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`
- 3D model: SOT-223-3 (KiCad packages3D, STEP)
- 3D model files: `ams1117a-3-3v-etched.step` / `ams1117a-3-3v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ams1117a-3-3v.step` / `ams1117a-3-3v.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [HX hengjiaxing datasheet](docs/ams1117a-3-3v-datasheet.pdf) (9 pp, sha256 `cd3d5a1ea037be22`, 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](docs/ams1117a-3-3v-datasheet.pdf)