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AP2126K-ADJTRG1
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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 @@+# AP2126K-ADJTRG1++**Diodes Incorporated** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++AP2126K-ADJTRG1 from Diodes Incorporated, 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 supply pin. Operating range 3.0V to 6V (absolute max 6.5V). Bypass to GND with a 1µF low-ESR ceramic capacitor. |+| 2 | GND | power_in | Device ground reference. Connect to the system ground plane. |+| 3 | Shutdown | input | Active-high enable/shutdown control (labeled 'Shutdown' with overbar in datasheet, functions as active-high enable). Logic HIGH ≥1.5V enables the regulator; LOW ≤0.4V disables it and engages the ~60Ω auto-discharge MOSFET on VOUT. Internal ~3MΩ pull-down. Input range -0.3V to VIN+0.3V. |+| 4 | ADJ | input | Feedback/adjust input. Connect to the R1/R2 external divider from VOUT to GND to set the output voltage: VOUT = 1.25 × (1 + R1/R2). Internal reference is 1.25V (±2%). |+| 5 | VOUT | power_out | Regulated output. Delivers up to 300mA (400mA typ current-limit onset, 50mA short-circuit limit). Requires ≥1µF low-ESR ceramic output capacitor for stability. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Diodes Incorporated |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `AP2126K-ADJTRG1`++## CAD (KiCad official)++- Symbol: `AP2126K-ADJTRG1`+- 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 datasheet](https://www.diodes.com/assets/Datasheets/AP2126K-ADJTRG1.pdf) (9 pp, sha256 `a82f55ffe0074204`, 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/ap2126k-adjtrg1-datasheet.pdf)
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