HX3406

@@ -0,0 +1,46 @@+# HX3406++**HX hengjiaxing** · DC-DC Converters · SOT-23-5++HX3406 from HX hengjiaxing, 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 | CE | input | Chip enable input. Drive above VCEL (min 1.2V at VIN=5V) to enable the regulator; drive below VCEH (max 0.9V at VIN=5V) to place the device into shutdown (standby current 0-1uA). Absolute max VCE = -0.3V to VIN+0.3V. |+| 2 | GND | power_in | Ground reference for the IC. Connect to the system ground with a low-impedance path; carries the return current for the internal N-channel power MOSFET switching node. |+| 3 | LX | output | Internal power switch output (switching node). Connects to the external inductor (typ 2.2uH). Absolute max current ±1500mA; peak current limit typically 1000mA. P-MOSFET RDSON ~0.35Ω, N-MOSFET RDSON ~0.3Ω at ISW=300mA. |+| 4 | VIN | power_in | Supply input, 1.8V to 5.5V operating range (absolute max 6.5V). Bypass to GND with a 4.7uF ceramic capacitor close to the pin. |+| 5 | FB | input | Output voltage feedback input. Regulates to an internal reference of 0.6V (typ; 0.59-0.61V). Connect to the midpoint of the external R1/R2 divider from VOUT to GND; FB input bias current is <±50nA at VFB=0.65V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HX hengjiaxing |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `HX3406AFMR`+- `HX3406AFML`++## CAD (KiCad official)++- Symbol: `HX3406`+- 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:** [HX hengjiaxing datasheet](docs/hx3406-datasheet.pdf) (6 pp, sha256 `67a054e588212fef`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/hx3406-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "hx3406",+  "version": "0.1.0",+  "type": "component",+  "description": "HX hengjiaxing DC-DC Converters, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "pmic",+    "hx3406"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "hx3406.kicad_sym",+    "hx3406.kicad_mod",+    "hx3406.glb",+    "hx3406.step",+    "hx3406.lbr",+    "docs/hero.png",+    "docs/hx3406-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file