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ap2127k-2-5trg1
Public Unreviewedby Ray
Diodes Incorporated AP2127K 2 5TRG1 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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README
markdownAP2127K-2.5TRG1
Diodes Incorporated AP2127K 2 5TRG1 · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
AP2127K-2.5TRG1 from Diodes Incorporated AP2127K 2 5TRG1, 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. Recommended operating range 2.5V to 6V (absolute max 6.5V). Bypass to GND with a 1µF ceramic capacitor placed close to the pin. |
| 2 | GND | power_in | Ground reference for the regulator. Connect to the system ground plane with a wide, low-impedance return trace. |
| 3 | Shutdown | input | Active-low enable/shutdown input. Drive high (VIH ≥ 1.5V) to enable the regulator; drive low (VIL ≤ 0.5V) to shut it down. Internally pulled down (~3MΩ). Standby current in shutdown is 0.1µA typical; VOUT is auto-discharged through ~60Ω to GND when shut down. |
| 4 | NC | unconnected | No connection on fixed-voltage versions (this 2.5V fixed variant). On adjustable versions this pin is ADJ (feedback input from external resistor divider); on the AP2127K-2.5 it is not used and may be left floating or tied to GND. |
| 5 | VOUT | power_out | Regulated 2.5V power output, ±2% accuracy, up to 300mA continuous (400mA typ current-limit). Requires a low-ESR ceramic output capacitor of 1µF or greater (X5R/X7R). Short-circuit limited to ~50mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated AP2127K 2 5TRG1 |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
AP2127K-2.5TRG1AP2127K-2.5TRG1K-ADJTRG1AP2127K-2.5TRG1K-1.0TRG1AP2127K-2.5TRG1K-1.2TRG1AP2127K-2.5TRG1K-1.5TRG1AP2127K-2.5TRG1K-1.8TRG1AP2127K-2.5TRG1K-2.8TRG1AP2127K-2.5TRG1K-3.0TRG1AP2127K-2.5TRG1K-3.3TRG1AP2127K-2.5TRG1K-4.2TRG1AP2127K-2.5TRG1K-4.75TRG1AP2127K-2.5TRG1N-1.0TRG1AP2127K-2.5TRG1N-1.2TRG1AP2127K-2.5TRG1N-1.5TRG1AP2127K-2.5TRG1N-1.8TRG1AP2127K-2.5TRG1N-2.5TRG1AP2127K-2.5TRG1N-2.8TRG1AP2127K-2.5TRG1N-3.0TRG1AP2127K-2.5TRG1N-3.3TRG1AP2127K-2.5TRG1N3-1.2TRG1AP2127K-2.5TRG1N3-1.5TRG1AP2127K-2.5TRG1R-3.3TRG1
CAD (KiCad official)
- Symbol:
AP2127K-2.5TRG1 - 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 AP2127K 2 5TRG1 datasheet (None 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).