component
LD1117AG-AD-TN3-A-R
Public Made by Adomby adom
UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+52@@ -0,0 +1,52 @@+# LD1117AG-AD-TN3-A-R++**UTC Unisonic Tech** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)++LD1117AG-AD-TN3-A-R from UTC Unisonic Tech, in a TO-252-2(DPAK). 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 | ADJ | input | Adjust pin for the adjustable output version. Feedback node held at VREF=1.25V (typ) relative to VOUT; connect a resistor divider from VOUT to ADJ to GND to program the output voltage. On fixed-voltage variants this pin functions as GND. |+| 2 | VOUT | power_out | Regulated positive output. Delivers up to 1A (LD1117A) with output noise ~100µV (10Hz-10kHz) and SVR ~75dB. Requires an output capacitor for stability; supports MLCC. |+| 3 | VIN | power_in | Unregulated positive input supply. Recommended operating input up to 15V, absolute maximum 18V. Requires VIN ≥ VOUT + dropout (≈1.2V at 800mA, 1.3V at 1A). |+| TAB | VOUT | power_out | Exposed metal tab of TO-252, internally tied to VOUT. Used for heat dissipation to the PCB copper pour; θJC ≈ 12 °C/W. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UTC Unisonic Tech |+| Package | TO-252-2(DPAK) |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `LD1117AG-AD-TN3-A-RTN3`+- `LD1117AG-AD-TN3-A-RAA3`+- `LD1117AG-AD-TN3-A-RAB3`+- `LD1117AG-AD-TN3-A-RTA3`+- `LD1117AG-AD-TN3-A-RTF3`+- `LD1117AG-AD-TN3-A-RTND`+- `LD1117AG-AD-TN3-A-RT2Q`+- `LD1117AG-AD-TN3-A-RTQ2`+- `LD1117AG-AD-TN3-A-RTQ3`+- `LD1117AG-AD-TN3-A-RS08`++## CAD (KiCad official)++- Symbol: `LD1117AG-AD-TN3-A-R`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UTC Unisonic Tech datasheet](docs/ld1117ag-ad-tn3-a-r-datasheet.pdf) (15 pp, sha256 `f7f26a117cb07dc2`, 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](docs/ld1117ag-ad-tn3-a-r-datasheet.pdf)
page.jsonadded+34@@ -0,0 +1,34 @@+{+ "slug": "ld1117ag-ad-tn3-a-r",+ "version": "0.1.0",+ "type": "component",+ "description": "UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "pmic",+ "ld1117ag-ad-tn3-a-r"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ld1117ag-ad-tn3-a-r.kicad_sym",+ "ld1117ag-ad-tn3-a-r.kicad_mod",+ "ld1117ag-ad-tn3-a-r.glb",+ "ld1117ag-ad-tn3-a-r.step",+ "ld1117ag-ad-tn3-a-r.lbr",+ "docs/hero.png",+ "docs/ld1117ag-ad-tn3-a-r-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}