component
AMS1117-5.0S
Public Made by Adomby adom
UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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AMS1117-5.0S
UMW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
AMS1117-5.0S from UMW, in a SOT-89. 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 reference pin (labelled GND/ADJ on datasheet; for fixed-voltage versions this pin is the ground return); I/O designated I/O on page 1. |
| 2 | VOUT | power_out | Regulated 5.0 V fixed output (4.900 V min, 5.100 V max, ±2%); rated for up to 1 A with 1.2 V typical dropout voltage at 1 A; requires 22 µF tantalum output capacitor for stability. |
| 3 | VIN | power_in | Unregulated input supply voltage; recommended operating maximum 12 V, absolute maximum 18 V; minimum input must exceed VOUT by at least the dropout voltage (typ. 1.2 V at 1 A). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOT-89 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
AMS1117-5.0S - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
ams1117-5-0s-etched.step/ams1117-5-0s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ams1117-5-0s.step/ams1117-5-0s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (13 pp, sha256
5ec219092aa45bd9, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# AMS1117-5.0S
**UMW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
AMS1117-5.0S from UMW, in a SOT-89. 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 reference pin (labelled GND/ADJ on datasheet; for fixed-voltage versions this pin is the ground return); I/O designated I/O on page 1. |
| 2 | VOUT | power_out | Regulated 5.0 V fixed output (4.900 V min, 5.100 V max, ±2%); rated for up to 1 A with 1.2 V typical dropout voltage at 1 A; requires 22 µF tantalum output capacitor for stability. |
| 3 | VIN | power_in | Unregulated input supply voltage; recommended operating maximum 12 V, absolute maximum 18 V; minimum input must exceed VOUT by at least the dropout voltage (typ. 1.2 V at 1 A). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOT-89 |
| Category | Power Management (PMIC) |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `AMS1117-5.0S`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files: `ams1117-5-0s-etched.step` / `ams1117-5-0s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ams1117-5-0s.step` / `ams1117-5-0s.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755873393256210432) (13 pp, sha256 `5ec219092aa45bd9`, retrieved 2026-09-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/ams1117-5-0s-datasheet.pdf)