TP6841S6-A

@@ -0,0 +1,45 @@+# TP6841S6-A++**TECH PUBLIC** · DC-DC Converters · SOT-23-6++TP6841S6-A from TECH PUBLIC, 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 pin for the high-side N-channel MOSFET gate drive. Connect a 100nF ceramic capacitor from BST to SW; the capacitor is charged from the internal 4.0V rail when SW is low to generate a gate voltage above VIN. |+| 2 | GND | power_in | Device ground. Serves as the reference for the control circuitry and the return for the power stage. Absolute range Vss-0.3V to Vss+45V per the datasheet. |+| 3 | FB | input | Feedback input to the internal error amplifier. Connect an external resistor divider from VOUT to FB and GND to set the output voltage; internal reference VREF = 0.8V (typ, 0.776-0.824V). Abs max Vss-0.3V to Vss+6V. |+| 4 | EN | input | Enable input for the IC. Drive high (rising threshold ~1.3V) to enable the regulator, low (falling ~1.2V, shutdown below 0.3V) to disable. Can be tied to a resistive divider from VIN for programmable UVLO. Abs max Vss-0.3V to Vss+45V; EN input current ~2µA at VEN=5V. |+| 5 | VIN | power_in | Supply voltage input, 4.5V to 40V operating (abs max Vss+45V). Provides power to the internal high-side MOSFET drain and bias circuitry. Bypass with a 22µF ceramic capacitor to GND, plus a 0.1µF high-frequency capacitor placed close to the pin. |+| 6 | SW | output | Switch node output. Connects the source of the integrated high-side N-MOSFET and drain of the low-side N-MOSFET to the external inductor. High-side RDS(on) ~450mΩ, low-side ~270mΩ; high-side current limit ~2A. Abs max Vss-0.3V to VIN+0.3V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | TECH PUBLIC |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `TP6841S6-A-A`++## CAD (KiCad official)++- Symbol: `TP6841S6-A`+- 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:** [TECH PUBLIC datasheet](docs/tp6841s6-a-datasheet.pdf) (9 pp, sha256 `a31ecef83be4e8ea`, 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/tp6841s6-a-datasheet.pdf)

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