RY3409

@@ -0,0 +1,46 @@+# RY3409++**RYCHIP** · DC-DC Converters · SOT-23-5++RY3409 from RYCHIP, in a SOT-23-5. 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 | EN | input | Chip enable. Drive EN above 1.2V (rising threshold) to turn the part on; drive below 0.6V (falling threshold) to shut it down. Do not leave EN floating. Absolute maximum EN voltage is 6.5V. |+| 2 | GND | power_in | Device ground return. Connect to a large copper pour for thermal dissipation and to close the input-capacitor current loop. |+| 3 | SW | output | Power switch node. Common drain of the internal P-channel high-side and N-channel low-side MOSFETs; connect to the external inductor. SW absolute maximum is -5V to 9V (10ns transient). |+| 4 | IN | power_in | Power supply input, 2.5V to 6V operating range (6.5V absolute max). Must be closely decoupled to GND with a 10uF or greater ceramic capacitor (plus an optional 0.1uF high-frequency bypass). |+| 5 | FB | input | Output voltage feedback. Connect the tap of an external R1/R2 divider from VOUT; the internal loop regulates FB to VFB = 0.6V (0.585V-0.615V). Recommended R2 <= 200k ohm. Absolute maximum FB voltage is 6V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | RYCHIP |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++Same part, different packaging or reel option.++- `RY3409`++## CAD (KiCad official)++- Symbol: `RY3409`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [RYCHIP datasheet](docs/ry3409-datasheet.pdf) (13 pp, sha256 `1c1c1f1c9fb5e660`, 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/ry3409-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "ry3409",+  "version": "0.1.0",+  "type": "component",+  "description": "RYCHIP DC-DC Converters, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "pmic",+    "ry3409"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "ry3409.kicad_sym",+    "ry3409.kicad_mod",+    "ry3409.glb",+    "ry3409.step",+    "ry3409.lbr",+    "docs/hero.png",+    "docs/ry3409-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file