LP3220SAB5F

@@ -0,0 +1,47 @@+# LP3220SAB5F++**LOWPOWER** · DC-DC Converters · SOT-23-5++LP3220SAB5F from LOWPOWER, in a SOT-23-5. 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 pin, active high. Pull high (VEN(H) >= 1.4V) to enable the converter; pull low (VEN(L) <= 0.4V) to force the device into low-power shutdown (<1uA total input current). Input low current 1uA max at VEN=5V. |+| 2 | GND | power_in | Device ground. Return for internal control circuitry and the low-side synchronous rectifier MOSFET source. Must be tied to the system ground plane with low-impedance connection. |+| 3 | LX | output | Switch node connection to the external inductor. Connects to the drains of the internal main P-channel and synchronous N-channel power MOSFETs. Absolute max 8.0V to GND; keep trace short to minimize EMI. |+| 4 | VIN | power_in | Supply input, 2.2V to 5.5V (abs max 8.0V). Powers the internal control circuitry and the high-side P-channel MOSFET drain. Must be closely decoupled to GND with a 10uF or greater ceramic capacitor. |+| 5 | FB/Vout | input | Feedback input. On the adjustable LP3220SAB5F variant this pin senses the divided output voltage against the internal 0.6V reference (VOUT = 0.6V x (1 + R1/R2)). On fixed-voltage variants (-12/-18/-33) this pin is tied directly to VOUT for internal feedback. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | LOWPOWER |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `LP3220SAB5FSAB5F`+- `LP3220SAB5F-12B5F`+- `LP3220SAB5F-18B5F`+- `LP3220SAB5F-33B5F`++## CAD (KiCad official)++- Symbol: `LP3220SAB5F`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [LOWPOWER datasheet](docs/lp3220sab5f-datasheet.pdf) (11 pp, sha256 `f568f91ecbf3261b`, 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/lp3220sab5f-datasheet.pdf)

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