SL9451

@@ -0,0 +1,41 @@+# SL9451++**Slkor SLKORMICRO Elec** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-6L++SL9451 from Slkor SLKORMICRO Elec, in a SOT-23-6L. 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. Positive supply for the internal floating high-side MOSFET driver. Connect a bypass capacitor (typ. 100nF) between this pin and SW; internally charged to about 5V via an internal bootstrap regulator. |+| 2 | GND | power_in | Ground pin. Route as close as possible to the output capacitor, avoiding high-current switching paths. |+| 3 | FB | input | Feedback input to the error amplifier. An external resistor divider from VOUT to GND compared against the internal 0.794V (typ) reference sets the regulated output voltage. Also interacts with the internal RC compensation network. |+| 4 | EN | input | Enable input. Drive above ~1.6V (typ 2.0V) to enable the chip; pull below the threshold to shut down. 0.6V hysteresis; internally clamped to 7.5V. Floating pulls low internally (device disabled). |+| 5 | VIN | power_in | Power input, 4.2V to 40V (abs max 43V). Supplies all internal control circuitry and the high-side power switch. Requires a local decoupling capacitor (typ 4.7uF/50V) to GND to reduce switching spikes. |+| 6 | SW | output | Switch node - high-side power MOSFET output (500mΩ Rdson typ, 1A current limit). Connect to the inductor and a low-Vf Schottky freewheel diode to GND placed close to the pin to reduce switching spikes. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Slkor SLKORMICRO Elec |+| Package | SOT-23-6L |+| Category | PMIC |+| Pins | 6 |++## CAD (KiCad official)++- Symbol: `SL9451`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6L (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Slkor SLKORMICRO Elec datasheet](docs/sl9451-datasheet.pdf) (9 pp, sha256 `e647ca8661d4bc1f`, 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/sl9451-datasheet.pdf)

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