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ap2112k-1-2trg1
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Diodes Incorporated AP2112K 1 2TRG1 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-25. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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README
markdownAP2112K-1.2TRG1
Diodes Incorporated AP2112K 1 2TRG1 · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-25
AP2112K-1.2TRG1 from Diodes Incorporated AP2112K 1 2TRG1, in a SOT-25. 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 voltage. Recommended operating range 2.5V to 6.0V (absolute max 6.5V). Bypass with a 1.0µF ceramic capacitor (X5R/X7R) to GND close to the pin. |
| 2 | GND | power_in | Device ground reference for the internal reference, error amplifier, and pass FET return current. |
| 3 | EN | input | Chip enable input. Drive high (VIH ≥ 1.5V, up to 6.0V) for normal operation; drive low (VIL ≤ 0.4V) to shut down the regulator. Internal ~3MΩ pull-down to GND; when EN is low, VOUT is discharged through an internal ~60Ω resistor. |
| 4 | NC | unconnected | No internal connection. Leave floating or tie to GND per board practice. |
| 5 | VOUT | power_out | Regulated 1.2V output (±1.5% accuracy) capable of 600mA (min). Requires a 1.0µF ceramic/tantalum/aluminum electrolytic capacitor to GND for stability. Foldback short-circuit protection limits current to ~50mA into a shorted output. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated AP2112K 1 2TRG1 |
| Package | SOT-25 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
AP2112K-1.2TRG1AP2112K-1.2TRG1K-1.8TRG1AP2112K-1.2TRG1K-2.5TRG1AP2112K-1.2TRG1K-2.6TRG1AP2112K-1.2TRG1K-3.3TRG1AP2112K-1.2TRG1R5-1.2TRG1AP2112K-1.2TRG1R5-1.8TRG1AP2112K-1.2TRG1R5-2.5TRG1AP2112K-1.2TRG1R5-2.6TRG1AP2112K-1.2TRG1R5-3.3TRG1AP2112K-1.2TRG1R5A-1.2TRG1AP2112K-1.2TRG1R5A-1.8TRG1AP2112K-1.2TRG1R5A-2.5TRG1AP2112K-1.2TRG1R5A-2.6TRG1AP2112K-1.2TRG1R5A-3.3TRG1AP2112K-1.2TRG1M-1.2TRG1AP2112K-1.2TRG1M-1.8TRG1AP2112K-1.2TRG1M-2.5TRG1AP2112K-1.2TRG1M-2.6TRG1AP2112K-1.2TRG1M-3.3TRG1
CAD (KiCad official)
- Symbol:
AP2112K-1.2TRG1 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-25 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated AP2112K 1 2TRG1 datasheet (None pp, sha256
ef8d376f2ec356e2, 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).