component
AP2120N-2.5TRG1
Public Made by Adomby adom
Diodes Incorporated Linear Voltage Regulators (LDO), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownAP2120N-2.5TRG1
Diodes Incorporated · Linear Voltage Regulators (LDO) · SOT-23
AP2120N-2.5TRG1 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, common reference for input and output. |
| 2 | VOUT | power_out | Regulated output voltage of 2.5V (±2%) for the -2.5 version, with more than 150mA output current and a 1µF minimum output capacitor. |
| 3 | VIN | power_in | Input voltage pin, recommended 2V to 6V (absolute maximum 6.5V), requiring a 1µF input capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage | VOUT | 2.45 | 2.5 | 2.55 | V | VIN = 3.5V, 1mA ≤ IOUT ≤ 30mA | 8 |
| Output Current | IOUT | 150 | mA | VIN-VOUT = 1V | 8 | ||
| Input Voltage (electrical table) | VIN | 6 | V | 8 | |||
| Load Regulation | VRLOAD | 12 | 40 | mV | VIN = 3.5V, 1mA ≤ IOUT ≤ 80mA | 8 | |
| Line Regulation | VRLINE | 4 | 16 | mV | 3V ≤ VIN ≤ 6V, IOUT = 30mA | 8 | |
| Dropout Voltage | VDROP | 20 | 40 | mV | IOUT = 10mA | 8 | |
| Dropout Voltage | VDROP | 200 | 300 | mV | IOUT = 100mA | 8 | |
| Dropout Voltage | VDROP | 300 | 500 | mV | IOUT = 150mA | 8 | |
| Quiescent Current | IQ | 25 | 50 | µA | VIN = 3.5V, IOUT = 0mA | 8 | |
| Power Supply Rejection Ratio | PSRR | 65 | dB | Ripple 0.5Vp-p, f = 1kHz, VIN = 3.5V | 8 | ||
| Output Voltage Temperature Coefficient | ∆VOUT/∆T | 250 | µV/°C | IOUT = 30mA (printed ±250) | 8 | ||
| Output Voltage Temperature Coefficient | (∆VOUT/VOUT)/∆T | 100 | ppm/°C | IOUT = 30mA (printed ±100) | 8 | ||
| Short Current Limit | ILIMIT | 50 | mA | VOUT = 0V | 8 | ||
| RMS Output Noise | VNOISE | 30 | µVrms | TA = +25°C, 10Hz ≤ f ≤ 100kHz | 8 | ||
| Input Voltage | VIN | 2 | 6 | V | 3 | ||
| Operating Junction Temperature Range | TJ | -40 | 85 | °C | 3 | ||
| Input Voltage | VIN | 6.5 | V | 3 | |||
| Enable Input Voltage | VCE | -0.3 | V | -0.3 to VIN +0.3 | 3 | ||
| Output Current | IOUT | 300 | mA | 3 | |||
| Junction Temperature | 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 | 3 | |||
| ESD (Machine Model) | ESD | 200 | V | 3 | |||
| Thermal Resistance Junction to Ambient | θJA | 250 | °C/W | SOT-23 | 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 MILSTD-202, Method 208 • Weight: 0.009 grams (Approximate) | 1 |
CAD (KiCad official)
- Symbol:
AP2120N-2.5TRG1 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ap2120n-2-5trg1-etched.step/ap2120n-2-5trg1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap2120n-2-5trg1.step/ap2120n-2-5trg1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (19 pp, sha256
66be4c8fbb47afd5, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).