component
AP2139AK-3.3TRG1
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Diodes Incorporated Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# AP2139AK-3.3TRG1++**Diodes Incorporated AP2139AK 3 3TRG1** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++AP2139AK-3.3TRG1 from Diodes Incorporated AP2139AK 3 3TRG1, 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 | VIN | power_in | Input voltage supply. Recommended operating range 2.5V to 6.0V (absolute max 6.6V). Requires 1µF ceramic input capacitor. |+| 2 | GND | power_in | Device ground reference. |+| 3 | CE | input | Active-high chip enable input. Logic high = enable, logic low = shutdown (with active quick output discharge). VIH ≥ 1.2V, VIL ≤ 0.3V, internal ~0.2µA pull-down; absolute max -0.3V to VIN+0.3V. |+| 4 | NC | unconnected | No internal connection. May be left floating or tied to GND. |+| 5 | VOUT | power_out | Regulated 3.3V output, 250mA capable. Requires ≥1µF ceramic output capacitor (ESR 0.01Ω to 100Ω) for stability. ±2% output accuracy. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Diodes Incorporated AP2139AK 3 3TRG1 |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `AP2139AK-3.3TRG1AK-3.3TRG1`++## CAD (KiCad official)++- Symbol: `AP2139AK-3.3TRG1`+- 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:** [Diodes Incorporated AP2139AK 3 3TRG1 datasheet](https://www.diodes.com/assets/Datasheets/AP2139AK-3.3TRG1.pdf) (29 pp, sha256 `027e80492a5bc199`, retrieved 2026-08-17, tier: manufacturer)+- **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/ap2139ak-3-3trg1-datasheet.pdf)
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