TC6291C

@@ -0,0 +1,42 @@+# TC6291C++**Shenzhen Fuman** · DC-DC Converters · SOT-23-6++TC6291C from Shenzhen Fuman, 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 | LX | output | Switching node - drain of the internal 0.2Ω, 2A, 16V N-channel power MOSFET. Connects to the boost inductor and Schottky rectifier cathode. Absolute max voltage 16V. |+| 2 | GND | power_in | IC ground return for the internal MOSFET source, control logic and current-sense amplifier. Should tie directly to the ground plane close to CIN/COUT. |+| 3 | FB | input | Inverting input of the error amplifier. Connect to the mid-point of the output resistor divider; regulation target Vref = 0.6V (±2%). VOUT = 0.6V × (1 + R1/R2). Absolute max 6V. |+| 4 | EN | input | Enable input, active high. VEN ≥ 0.96V turns the converter on; VEN ≤ 0.6V shuts it down (IQ ≈ 0.1µA). Absolute max 6V. |+| 5 | VCC | power_in | IC supply input. Operating range 2.6V to 5.5V, UVLO ≈ 2.2V (0.1V hysteresis). Absolute max 6V. Decouple close to the pin with low-ESR ceramic. |+| 6 | OC | input | Adjustable peak-current-limit programming pin. A resistor from OC to GND (36kΩ-100kΩ) sets the peak switch current from ~1.5A down to 0.5A per IOCP = 55000/R. Leaving OC floating gives the default (~2A typ, 2.6A max) internal limit. Do not add capacitance on this pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shenzhen Fuman |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## CAD (KiCad official)++- Symbol: `TC6291C`+- 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:** [Shenzhen Fuman datasheet](docs/tc6291c-datasheet.pdf) (10 pp, sha256 `bc0dc73401217660`, 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/tc6291c-datasheet.pdf)

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