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AP2139AK-3.3TRG1

Public Made by Adom

by adom

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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docs ap2139ak-3-3trg1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers ap2139ak-3-3trg1: viewers · Ray 2mo ago
ap2139ak-3-3trg1-etched.fit.json ap2139ak-3-3trg1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
ap2139ak-3-3trg1-etched.glb ap2139ak-3-3trg1: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC… · Ray 8d ago
ap2139ak-3-3trg1-etched.step ap2139ak-3-3trg1: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC… · Ray 8d ago
ap2139ak-3-3trg1.glb Publish 0.1.0 · Ray 2mo ago
ap2139ak-3-3trg1.kicad_mod Publish 0.1.0 · Ray 2mo ago
ap2139ak-3-3trg1.kicad_sym Publish 0.1.0 · Ray 2mo ago
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ap2139ak-3-3trg1.step Publish 0.1.0 · Ray 2mo ago
package.json ap2139ak-3-3trg1: manufacturer 'Diodes Incorporated' (was 'Diodes Incorporated AP2139AK 3 3TRG1': the MPN had been fold… · Ray 1mo ago
page.json ap2139ak-3-3trg1: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC… · Ray 8d ago
README.md ap2139ak-3-3trg1: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

AP2139AK-3.3TRG1

Diodes Incorporated · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

AP2139AK-3.3TRG1 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 voltage supply. Recommended operating range 2.5V to 6.0V (absolute max 6.6V). Requires 1µF ceramic input capacitor.
2 GND power_in Device ground reference.
3 CE input Active-high chip enable input. Logic high = enable, logic low = shutdown (with active quick output discharge). VIH ≥ 1.2V, VIL ≤ 0.3V, internal ~0.2µA pull-down; absolute max -0.3V to VIN+0.3V.
4 NC unconnected No internal connection. May be left floating or tied to GND.
5 VOUT power_out Regulated 3.3V output, 250mA capable. Requires ≥1µF ceramic output capacitor (ESR 0.01Ω to 100Ω) for stability. ±2% output accuracy.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • AP2139AK-3.3TRG1

CAD (KiCad official)

  • Symbol: AP2139AK-3.3TRG1
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: ap2139ak-3-3trg1-etched.step / ap2139ak-3-3trg1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap2139ak-3-3trg1.step / ap2139ak-3-3trg1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (29 pp, sha256 027e80492a5bc199, 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