FP6373AS6CTR

@@ -0,0 +1,45 @@+# FP6373AS6CTR++**Fitipower Integrated Tech** · DC-DC Converters · SOT-23-6++FP6373AS6CTR from Fitipower Integrated Tech, 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 | EN | input | Enable input pin. Pull high (VENH ≥ 1.5V) to turn on the IC; pull low (VENL ≤ 0.4V) to shut it down. Absolute max range -0.3V to VIN. |+| 2 | GND | power_in | Ground pin. Common return for the input capacitor, output capacitor, and internal synchronous NFET. |+| 3 | LX | output | Switching node. Connect an external inductor from LX to the output. Swings between GND and VIN each switching cycle at ~1MHz. Absolute max -0.3V to (VIN+0.3V). |+| 4 | VIN | power_in | Power supply input pin. Operating range 2.7V to 5.5V (abs max 6.5V). Place input decoupling capacitor (10µF MLCC typ) as close as possible from VIN to GND to avoid noise influence. |+| 5 | PG | output | Open-drain Power Good output. Pulls low when VFB is below ~90% of VREF; released when output is in regulation. Requires an external pull-up resistor. Sink capability 1mA at VPG=0.1V. |+| 6 | FB | input | Feedback input pin. Connect to the center tap of the output resistor divider to program VOUT = 0.6V × (1 + R1/R2). Internal reference VREF = 0.6V (typ), IFB ±50nA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Fitipower Integrated Tech |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `FP6373AS6CTRS6CTR`++## CAD (KiCad official)++- Symbol: `FP6373AS6CTR`+- 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:** [Fitipower Integrated Tech datasheet](docs/fp6373as6ctr-datasheet.pdf) (13 pp, sha256 `6461a3b32444eee7`, 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/fp6373as6ctr-datasheet.pdf)

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