component
LD1117-ADJ
Public Made by Adomby adom
UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+44@@ -0,0 +1,44 @@+# LD1117-ADJ++**UMW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4++LD1117-ADJ from UMW, in a SOT-223-4. 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. Connect to the tap of an external R1/R2 divider from VOUT to GND to set the output voltage. Internal reference is 1.250V (typ, 1.231-1.269V); adjust pin current is 60µA typ (120µA max). |+| 2 | VOUT | power_out | Regulated output. Delivers up to 1A. Requires a >=22µF tantalum output capacitor for stability. Output tab (metal pad) on SOT-223 is electrically connected to VOUT. |+| 3 | VIN | power_in | Unregulated input supply. Absolute max 18V; recommended operating input 12V max. Requires >=10µF input capacitor. VIN must be at least VOUT + Vdropout (typ 1.2V at 1A). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOT-223-4 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `LD1117-ADJ-ADJ`+- `LD1117-ADJCD-ADJ`+- `LD1117-ADJS-ADJ`++## CAD (KiCad official)++- Symbol: `LD1117-ADJ`+- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`+- 3D model: SOT-223-4 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](docs/ld1117-adj-datasheet.pdf) (14 pp, sha256 `b65a8249b6e9e313`, 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/ld1117-adj-datasheet.pdf)
page.jsonadded+34@@ -0,0 +1,34 @@+{+ "slug": "ld1117-adj",+ "version": "0.1.0",+ "type": "component",+ "description": "UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "pmic",+ "ld1117-adj"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ld1117-adj.kicad_sym",+ "ld1117-adj.kicad_mod",+ "ld1117-adj.glb",+ "ld1117-adj.step",+ "ld1117-adj.lbr",+ "docs/hero.png",+ "docs/ld1117-adj-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}