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APL3552ACI-TRG
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Anpec Elec AC-DC Controllers and Regulators, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# APL3552ACI-TRG++**Anpec Elec** · AC-DC Controllers and Regulators · SOT-23-6++APL3552ACI-TRG from Anpec Elec, 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 | IN | power_in | Power supply input, 2.7 V to 5.5 V. Drain of the internal N-channel power MOSFET; connect to the external DC supply and bypass to GND with a 10 µF ceramic capacitor close to the pin. |+| 2 | GND | power_in | Device ground reference. Return for supply current, ILIM sense resistor, and OCB pull-up load. |+| 3 | EN | input | Active-high enable input (APL3552A variant, marking 52O). Pull above 2 V (VIH) to enable the switch, below 0.66 V (VIL) to disable it. Compatible with TTL/CMOS levels; must not be left floating. EN input current ≤1 µA. |+| 4 | OCB | output | Open-drain fault indication output. Asserts low after a 12 ms deglitch when current-limit, over-temperature, or reverse-voltage protection is triggered; releases high when VOUT > 1.5 V. Requires an external pull-up resistor (e.g. 10 kΩ). VOL ≤ 0.4 V at 5 mA. |+| 5 | ILIM | passive | Current-limit programming pin. Connect an external resistor RILIM (10 kΩ to 150 kΩ, 1%) from ILIM to GND to set the current-limit threshold; IOS(NOM)(A) = 26 V / RILIM(kΩ). ILIM voltage source ≈0.4 V. Keep RILIM trace short to preserve accuracy. |+| 6 | VOUT | power_out | Switched power output. Source of the internal N-channel MOSFET; follows IN when the device is enabled with RDS(on) ≈ 62 mΩ typical. Bypass with a low-ESR output capacitor (10 µF ceramic + 150 µF electrolytic recommended for hot-plug loads). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Anpec Elec |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++Same part, different packaging or reel option.++- `APL3552ACI-TRG`+- `APL3552ACI-TRGBCI-TRG`+- `APL3552ACI-TRGABI-TRG`+- `APL3552ACI-TRGBBI-TRG`+- `APL3552ACI-TRGAQBI-TRG`+- `APL3552ACI-TRGBQBI-TRG`++## CAD (KiCad official)++- Symbol: `APL3552ACI-TRG`+- 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:** [Anpec Elec datasheet](docs/apl3552aci-trg-datasheet.pdf) (21 pp, sha256 `a38a5227568adc54`, 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/apl3552aci-trg-datasheet.pdf)
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