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AP2125N-2.8TRG1

Public Made by Adom

by adom

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

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AP2125N-2.8TRG1

Diodes Incorporated · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3

AP2125N-2.8TRG1 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 pin of the regulator.
2 VOUT power_out Regulated output voltage, fixed 2.8V (2.744V to 2.856V) for the -2.8 version, up to 300mA minimum output current.
3 VIN power_in Input voltage pin, recommended operating range VOUT+0.5V to 6V (absolute maximum 6.5V).

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23-3
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
Output Voltage VOUT 2.744 2.8 2.856 V VIN = 3.8V, 1mA ≤ IOUT ≤ 30mA 6
Input Voltage VIN 6 V 6
Maximum Output Current IOUT(MAX) 300 360 mA VIN-VOUT = 1V, VOUT = 2.74V 6
Load Regulation VRLOAD 11 15 mV VIN = 3.8V, 1mA ≤ IOUT ≤ 300mA 6
Line Regulation VRLINE 1 15 mV 3.8V ≤ VIN ≤ 6V, IOUT = 30mA 6
Dropout Voltage VDROP 6.5 10 mV IOUT = 10mA 6
Dropout Voltage VDROP 65 100 mV IOUT = 100mA 6
Dropout Voltage VDROP 200 300 mV IOUT = 300mA 6
Quiescent Current IQ 60 90 µA VIN = 3.8V, IOUT = 0mA 6
Standby Current ISTD 0.01 1 µA VIN = 3.8V, VCE in OFF mode 6
CE High Voltage 1.5 V CE input voltage "High" 6
CE Low Voltage 0.4 V CE input voltage "Low" 6
Power Supply Rejection Ratio PSRR 65 dB Ripple 0.5Vp-p, VIN = 3.8V, f = 100Hz 6
Output Voltage Temperature Coefficient (∆VOUT/VOUT)/∆T 100 ppm/°C IOUT = 30mA (printed ±100) 6
Short Current Limit ISHORT 50 mA VOUT = 0V 6
RMS Output Noise VNOISE 50 µVrms 10Hz ≤ f ≤ 100kHz 6
Thermal Shutdown 160 °C 6
Thermal Shutdown Hysteresis 25 °C 6
Input Voltage VIN 6.5 V 3
Output Current IOUT 450 mA 3
Junction Temperature TJ 150 °C 3
Storage Temperature Range TSTG -65 150 °C 3
Lead Temperature TLEAD 260 °C Soldering, 10sec 3
ESD (Human Body Model) ESD 6000 V 3
ESD (Machine Model) ESD 400 V 3
Operating Ambient Temperature Range TA -40 85 °C 3
Thermal Resistance θJA 200 °C/W SOT-23-3 3

CAD (KiCad official)

  • Symbol: AP2125N-2.8TRG1
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: ap2125n-2-8trg1-etched.step / ap2125n-2-8trg1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap2125n-2-8trg1.step / ap2125n-2-8trg1.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (25 pp, sha256 73dd4f47f543db12, retrieved 2026-10-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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