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AP2127N-3.3TRG1

Public Made by Adom

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

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AP2127N-3.3TRG1

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

AP2127N-3.3TRG1 from Diodes Incorporated, in a SOT-23. 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 pin; the input and output capacitors (1µF ceramic recommended) must return to this pin, placed as close to the device as possible.
2 VOUT power_out Regulated 3.3V output rated up to 300mA, with a typical dropout of 170mV at 300mA (300mV maximum); a low-ESR 1µF X7R or X5R ceramic output capacitor is required.
3 VIN power_in Power input with a recommended operating range of 2.5V to 6V (6.5V absolute maximum); a 1µF ceramic capacitor is recommended between VIN and GND.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23
Category Power Management (PMIC)
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 (recommended operating) VIN 2.5 6 V 4
Operating Ambient Temperature Range TA -40 85 °C 4
Input Voltage VIN 2.5 6 V 5
Reference Voltage VREF 0.784 0.8 0.816 V VIN = VOUT +1V, 1mA ≤ IOUT ≤ 300mA 5
Output Voltage Accuracy (printed ±2%) VOUT -2 2 % 1
Maximum Output Current IOUT(MAX) 300 400 mA VIN - VOUT = 1V, VOUT = 0.98 x VOUT 5
Load Regulation ΔVOUT 4 10 mV VIN - VOUT = 1V, 1mA ≤ IOUT ≤ 300mA 5
Line Regulation ΔVOUT 0.5 5 mV VOUT + 0.5V ≤ VIN ≤ 6V, IOUT = 30mA 5
Dropout Voltage (3.3V version) VDROP 170 300 mV VOUT = 2.5V, 2.8V, 3.0V, 3.3V, 4.2V, IOUT = 300mA 5
Quiescent Current IQ 60 90 µA VIN = VOUT +1V, IOUT = 0mA 5
Standby Current ISTD 0.1 1 µA VIN = VOUT +1V, VSHUTDOWN in off mode 5
Output Voltage Temperature Coefficient (printed ±100) ΔVOUT/VOUT/ΔT -100 100 ppm/°C IOUT = 30mA, -40°C ≤ TA ≤ +85°C 5
Shutdown High Voltage 1.5 V 5
Shutdown Low Voltage 0.5 V 5
Input Voltage (absolute maximum) VIN 6.5 V 4
Shutdown Input Voltage (absolute maximum) VCE -0.3 V upper limit printed as VIN +0.3 V 4
Output Current (absolute maximum) IOUT 450 mA 4
Junction Temperature (absolute maximum) TJ 150 °C 4
Storage Temperature Range TSTG -65 150 °C 4
Lead Temperature (soldering) TLEAD 260 °C Soldering, 10 sec 4
ESD Human Body Model ESD 6000 V Human Body Model 4
ESD Machine Model ESD 200 V Machine Model 4
Thermal Resistance Junction to Ambient (SOT-23) θJA 180 °C/W SOT-23 package 4
Thermal Resistance Junction to Case (SOT-23) θJC 100 °C/W SOT-23 package 5

CAD (KiCad official)

  • Symbol: AP2127N-3.3TRG1
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ap2127n-3-3trg1-etched.step / ap2127n-3-3trg1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap2127n-3-3trg1.step / ap2127n-3-3trg1.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (24 pp, sha256 d48c96ac985d348a, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), 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