TD1466TR

@@ -0,0 +1,46 @@+# TD1466TR++**Techcode Semicon** · DC-DC Converters · SOT-23-6++TD1466TR from Techcode Semicon, in a SOT-23-6. 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 | BST | passive | Bootstrap. Connect a capacitor (typ. 0.1µF) between SW and BST to form a floating supply for the high-side power switch driver, boosting the gate drive above VIN. |+| 2 | GND | power_in | Ground. Voltage reference for the regulated output. Isolate from the D1-to-C1 ground path to prevent switching-current spikes from being induced into the sensitive analog return. |+| 3 | FB | input | Feedback input. Connect to the tap of an external resistor divider from VOUT to GND to set the output voltage against the 0.812V internal reference. Frequency foldback lowers the switching frequency when VFB < 300mV to prevent current-limit runaway during short-circuit. |+| 4 | EN | input | Enable input. Pull above VEN_R ≈ 1.35V to turn the device ON; pull below ~1.17V to shut down (IS ≈ 0.1µA). For automatic enable at power-up, tie to VIN through a ~1MΩ resistor. |+| 5 | VIN | power_in | Supply voltage input, 11V to 60V (absolute max 60V). Requires a local input capacitor (typ. 4.7µF X5R/X7R ceramic) to suppress switching-current spikes. |+| 6 | SW | power_out | Switching node - drain of the internal N-channel power MOSFET (RDS(ON) ≈ 0.7Ω). Connect to the external inductor and Schottky catch diode of the buck output filter. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Techcode Semicon |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `TD1466TRT`+- `TD1466TRTR`++## CAD (KiCad official)++- Symbol: `TD1466TR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Techcode Semicon datasheet](docs/td1466tr-datasheet.pdf) (8 pp, sha256 `ab36122dc7aa9ee3`, 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/td1466tr-datasheet.pdf)

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