AP2127K-3.3TRG1
Public Unreviewedby Ray
Diodes Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownAP2127K-3.3TRG1
Diodes · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
AP2127K-3.3TRG1 from Diodes, 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 | Power input. Operating range 2.5V to 6V (absolute max 6.5V). Bypass with 1µF low-ESR ceramic capacitor to GND. |
| 2 | GND | power_in | Device ground reference. |
| 3 | Shutdown | input | Active-low shutdown / enable input. Logic high (≥1.5V) enables the regulator; logic low (≤0.5V) puts the device into shutdown (standby current 0.1µA typ). Internal ~3MΩ pull-down. |
| 4 | NC | unconnected | No connection on fixed-voltage versions (AP2127K-3.3). On adjustable versions this pin is ADJ (VOUT feedback input to internal resistor divider). |
| 5 | VOUT | power_out | Regulated power output, 3.3V ±2% for AP2127K-3.3, up to 300mA. Requires 1µF low-ESR ceramic output capacitor to GND. Contains internal ~60Ω auto-discharge MOSFET (active in shutdown). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
AP2127K-3.3TRG1K
CAD (KiCad official)
- Symbol:
AP2127K-3.3TRG1 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
ap2127k-3-3trg1.step |
85 KB | You want the bare part, or you mark your own boards. |
ap2127k-3-3trg1-etched.step |
2.3 MB | You want the part with AP2127K-3.3TRG1 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 581 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes datasheet (24 pp, sha256
d48c96ac985d348a, 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).