component
AP2125N-2.8TRG1
Public Made by Adomby 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.
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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README
markdownAP2125N-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap2125n-2-8trg1.step/ap2125n-2-8trg1.glbare 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, 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).