component
AP2127N-1.2TRG1
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
markdownAP2127N-1.2TRG1
Diodes Incorporated · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
AP2127N-1.2TRG1 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 1.2V fixed output; needs a 1µF or larger low-ESR ceramic output capacitor placed close to the pin and GND, and short-circuit current is clamped to about 50mA. |
| 3 | VIN | power_in | Power input accepting 2.5V to 6V (absolute maximum 6.5V), decoupled with a 1µF ceramic capacitor placed close to the pin. |
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 |
|---|---|---|---|---|---|---|---|
| Reference Voltage | VREF | 0.784 | 0.8 | 0.816 | V | VIN = VOUT +1V, 1mA ≤ IOUT ≤ 300mA | 5 |
| Output Voltage | VOUT | 98 | 102 | % of VOUT | VIN = VOUT +1V, 1mA ≤ IOUT ≤ 300mA | 5 | |
| Input Voltage | VIN | 2.5 | 6 | V | 5 | ||
| 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 | VDROP | 1200 | 1300 | mV | VOUT = 1.2V, 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 | |
| Shutdown High Voltage | 1.5 | V | Shutdown Input Voltage High | 5 | |||
| Shutdown Low Voltage | 0.5 | V | Shutdown Input Voltage Low | 5 | |||
| Input Voltage (recommended) | VIN | 2.5 | 6 | V | @TA = +25°C | 4 | |
| Operating Ambient Temperature Range | TA | -40 | 85 | °C | 4 | ||
| Input Voltage (absolute max) | VIN | 6.5 | V | @TA = +25°C | 4 | ||
| Shutdown Input Voltage | VCE | -0.3 | V | -0.3 to VIN +0.3 V (max is VIN + 0.3) | 4 | ||
| Output Current | IOUT | 450 | mA | 4 | |||
| Junction Temperature | TJ | 150 | °C | 4 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 4 | ||
| Lead Temperature | TLEAD | 260 | °C | Soldering, 10sec | 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 | θJA | 180 | °C/W | SOT-23 | 4 | ||
| Thermal Resistance Junction to Case | θJC | 100 | °C/W | SOT-23 | 5 | ||
| Output Voltage Temperature Coefficient | ΔVOUT/VOUT/ΔT | 100 | ppm/°C | IOUT = 30mA, -40°C ≤ TA ≤ +85°C; printed ±100 | 5 | ||
| Power Supply Rejection | PSRR | 68 | dB | AP2127-1.0V to 4.2V, Ripple 1VP-P, VIN = VOUT +1V, f = 100Hz | 5 | ||
| Power Supply Rejection | PSRR | 54 | dB | AP2127-1.0V to 4.2V, Ripple 1VP-P, VIN = VOUT +1V, f = 10kHz | 5 | ||
| Short Current Limit | ISHORT | 50 | mA | VOUT = 0V | 5 | ||
| Soft Start Time | tSS | 50 | µs | 5 | |||
| RMS Output Noise | VNOISE | 60 | µVRMS | TA = +25°C, 10Hz ≤ f ≤ 100kHz, VOUT = 0.8V | 5 | ||
| VOUT Discharge MOSFET RDS(ON) | RDS(ON) | 60 | Ω | Shutdown Input Voltage Low | 5 | ||
| Shutdown Pull Down Resistance | 3 | MΩ | 5 | ||||
| Thermal Shutdown | 165 | °C | 5 | ||||
| Thermal Shutdown Hysteresis | 30 | °C | 5 |
CAD (KiCad official)
- Symbol:
AP2127N-1.2TRG1 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
ap2127n-1-2trg1-etched.step/ap2127n-1-2trg1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap2127n-1-2trg1.step/ap2127n-1-2trg1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (24 pp, sha256
d48c96ac985d348a, retrieved 2026-10-23, 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).