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Contents

README

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AP2120N-3.0TRG1

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

AP2120N-3.0TRG1 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 of the regulator.
2 VOUT power_out Regulated 3.0V output (±2%) delivering more than 150mA, requiring at least 1µF output capacitance with ESR of 0.01Ω to 100Ω.
3 VIN power_in Input voltage pin, recommended 2V to 6V (6.5V absolute maximum), requiring a 1µF input capacitor.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23
Category Power Management ICs
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 2.94 3 3.06 V VIN = 4V, 1mA ≤ IOUT ≤ 30mA 10
Input Voltage VIN 6 V 10
Output Current IOUT 150 mA VIN-VOUT = 1V 10
Load Regulation VRLOAD 12 40 mV VIN = 4V, 1mA ≤ IOUT ≤ 80mA 10
Line Regulation VRLINE 4 16 mV 3.5V ≤ VIN ≤ 6V, IOUT = 30mA 10
Dropout Voltage VDROP 20 40 mV IOUT = 10mA 10
Dropout Voltage VDROP 200 300 mV IOUT = 100mA 10
Dropout Voltage VDROP 300 500 mV IOUT = 150mA 10
Quiescent Current IQ 25 50 µA VIN = 4V, IOUT = 0mA 10
Power Supply Rejection Ratio PSRR 65 dB Ripple 0.5Vp-p, f = 1kHz, VIN = 4V 10
Output Voltage Temperature Coefficient ∆VOUT/∆T 300 µV/°C IOUT = 30mA (printed ±300) 10
Output Voltage Temperature Coefficient (∆VOUT/VOUT)/∆T 100 ppm/°C IOUT = 30mA (printed ±100) 10
Short Current Limit ILIMIT 50 mA VOUT = 0V 10
RMS Output Noise VNOISE 30 µVrms TA = +25°C, 10Hz ≤ f ≤ 100kHz 10
Input Voltage (absolute maximum) VIN 6.5 V 3
Output Current (absolute maximum) IOUT 300 mA 3
Junction Temperature (absolute maximum) TJ 150 °C 3
Storage Temperature Range TSTG -65 150 °C 3
Lead Temperature TLEAD 260 °C Soldering, 10s 3
ESD Human Body Model ESD 2000 V HBM 3
ESD Machine Model ESD 200 V MM 3
Thermal Resistance Junction to Ambient θJA 250 °C/W SOT-23 3
Input Voltage (recommended) VIN 2 6 V 3
Operating Junction Temperature Range TJ -40 85 °C 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin • Terminals: Finish - Mate Tin Plated Leads, Solderable per MIL￾STD-202, Method 208 • Weight: 0.009 grams (Approximate) 1

CAD (KiCad official)

  • Symbol: AP2120N-3.0TRG1
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ap2120n-3-0trg1-etched.step / ap2120n-3-0trg1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap2120n-3-0trg1.step / ap2120n-3-0trg1.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (19 pp, sha256 66be4c8fbb47afd5, retrieved 2026-10-23, 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