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AP2138N-3.6TRG1

Public Made by Adom

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Diodes Incorporated Linear Voltage Regulators (LDO), SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AP2138N-3.6TRG1

Diodes Incorporated · Linear Voltage Regulators (LDO) · SOT-23-3

AP2138N-3.6TRG1 from Diodes Incorporated, in a SOT-23-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground reference pin for the SOT-23-3 package variant of the AP2138 regulator.
2 VOUT power_out Regulated output voltage, fixed at 3.6 V for this part, which requires an output capacitor of more than 1µF with ESR from 0.01Ω to 100Ω for stability.
3 VIN power_in Input voltage with a recommended operating range of 2.5 V to 6.0 V, and a filter capacitor of 1µF is required at the input.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23-3
Category Power Supply Chip
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Voltage VIN 2.5 6 V 4
Operating Ambient Temperature Range TA -40 85 °C 4
Input Voltage VIN 6.6 V 4
ESD Machine Model ESD 350 V Machine Model 4
ESD Human Body Model ESD 2000 V Human Body Model 4
Lead Temperature TLEAD 260 °C 4
Junction Temperature TJ 150 °C 4
Storage Temperature Range TSTG -65 150 °C 4
Input Voltage VIN 6 V 15
Output Voltage VOUT 3.528 3.6 3.672 V 15
Quiescent Current IQ 1 1.5 µA IOUT = 0 15
Output Current IOUT 250 mA 15
Load Regulation VRLOAD 25 40 mV 1mA ≤ IOUT ≤ 100mA 15
Line Regulation VRLINE 6 18 mV 4.6V ≤ VIN ≤ 6V 15
Dropout Voltage VDROP 20 100 mV IOUT = 10mA 15
Dropout Voltage VDROP 50 200 mV IOUT = 30mA 15
Dropout Voltage VDROP 160 300 mV IOUT = 100mA 15
Dropout Voltage VDROP 400 600 mV IOUT = 250mA 15
Output Voltage Temperature Coefficient ∆VOUT/∆T -330 330 µV/°C 15
Output Voltage Temperature Coefficient (∆VOUT/VOUT)/∆T -100 100 ppm/°C 15
Short Circuit Current ISHORT 50 mA VOUT = 0 15
Thermal Resistance θJA 250 °C/W SOT-23-3, Absolute Maximum Ratings (Note 6) 4
Thermal Resistance θJC 81.9 °C/W SOT-23-3 15

CAD (KiCad official)

  • Symbol: AP2138N-3.6TRG1
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: ap2138n-3-6trg1-etched.step / ap2138n-3-6trg1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap2138n-3-6trg1.step / ap2138n-3-6trg1.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 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF