component
AP2127K-1.8TRG1
Public Made by Adomby adom
Diodes Incorporated Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAP2127K-1.8TRG1
Diodes Incorporated · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
AP2127K-1.8TRG1 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 | Regulator power input. Operating range 2.5V to 6V (absolute max 6.5V). Bypass with a 1uF low-ESR ceramic capacitor to GND close to the pin. |
| 2 | GND | power_in | Device ground reference. Return for input, output, and shutdown pins. |
| 3 | Shutdown | input | Active-low enable/shutdown input. Drive >=1.5V to enable the regulator; drive <=0.5V to place the device in shutdown mode (standby current 0.1uA typ). Internally pulled down through ~3M-ohm; drive explicitly for reliable operation. |
| 4 | NC | unconnected | No Connection on fixed-voltage versions (this is the AP2127K-1.8, a 1.8V fixed variant). On adjustable versions the same pin is ADJ, the VOUT feedback input connected to a resistor divider. Leave floating on the 1.8V variant. |
| 5 | VOUT | power_out | Regulated 1.8V power output, up to 300mA continuous (400mA typical max). Requires a 1uF low-ESR ceramic capacitor to GND for stability. Auto-discharge MOSFET (RDS(ON) ~60 ohm) discharges output during shutdown. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
AP2127K-1.8TRG1
CAD (KiCad official)
- Symbol:
AP2127K-1.8TRG1 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
ap2127k-1-8trg1-etched.step/ap2127k-1-8trg1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap2127k-1-8trg1.step/ap2127k-1-8trg1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated 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).