# AP2115M-3.3TRG1

**Diodes Incorporated** · Linear Voltage Regulators (LDO) · SOIC-8

AP2115M-3.3TRG1 from Diodes Incorporated, in a SOIC-8. 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 | VOUT | power_out | Regulated output voltage, which is fixed at 3.3V for this variant, with a guaranteed 1A minimum continuous load current. |
| 2 | NC/EN | unconnected | No connection on SOIC-8 per the pin table, with the table also listing it as a possible chip-enable function. |
| 3 | NC/EN | unconnected | No connection on SOIC-8 per the pin table, with the table also listing it as a possible chip-enable function. |
| 4 | NC/EN | unconnected | No connection on SOIC-8 per the pin table, with the table also listing it as a possible chip-enable function. |
| 5 | EN/NC | input | Chip enable: H for normal operation, L for shutdown of the output. |
| 6 | GND | power_in | Ground reference pin for the regulator. |
| 7 | GND | power_in | Ground reference pin for the regulator. |
| 8 | VIN | power_in | Input voltage supply, with a recommended supply range of 2.5V to 6.0V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOIC-8 |
| Category | Power Supply Chip |
| Pins | 8 |

## 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 | 98.5 |  | 101.5 | %×VOUT | VIN =4.3V, 1mA ≤ IOUT ≤ 30mA | 9 |
| Maximum Output Current | IOUT(MAX) | 1 |  |  | A | VIN =4.3V, VOUT=3.25V to 3.35V | 9 |
| Load Regulation | △VOUT/VOUT △IOUT |  | 0.2 | 1 | %/A | VIN=4.3V, 1mA ≤ IOUT ≤1A | 9 |
| Line Regulation | △VOUT/VOUT △VIN | -0.1 | 0.02 | 0.1 | %/V | 4.3V≤VIN≤6V, IOUT=30mA | 9 |
| Dropout Voltage | VDROP |  | 450 | 750 | mV | IOUT=1A | 9 |
| Quiescent Current | IQ |  | 65 | 90 | µA | VIN=4.3V, IOUT=0mA | 9 |
| Power Supply Rejection Ratio at 100Hz | PSRR |  | 65 |  | dB | f=100Hz, Ripple 1Vp-p, VIN=4.3V, IOUT=100mA | 9 |
| Power Supply Rejection Ratio at 1kHz | PSRR |  | 65 |  | dB | f=1KHz, Ripple 1Vp-p, VIN=4.3V, IOUT=100mA | 9 |
| Output Voltage Temperature Coefficient | △VOUT/VOUT △T | -30 |  | 30 | ppm/°C | IOUT=30mA | 9 |
| Short Current Limit | ISHORT |  | 50 |  | mA | VOUT=0V | 9 |
| RMS Output Noise | VNOISE |  | 30 |  | µVRMS | 10Hz ≤ f ≤100kHz (No load) | 9 |
| VEN High Voltage | VIH | 1.5 |  |  | V | Enable logic high, regulator on | 9 |
| VEN Low Voltage | VIL |  |  | 0.4 | V | Enable logic low, regulator off | 9 |
| Standby Current | ISTD |  | 0.01 | 1 | µA | VIN=3.5V, VEN in OFF mode | 9 |
| Start-up Time | tS |  | 20 |  | µs | No Load | 9 |
| EN Pull Down Resistor | RPD |  | 3 |  | MΩ |  | 9 |
| VOUT Discharge Resistor | RDCHG |  | 60 |  | Ω | Set EN pin at Low | 9 |
| Thermal Shutdown Temperature | TOTSD |  | 160 |  | °C |  | 9 |
| Thermal Shutdown Hysteresis | THYOTSD |  | 25 |  | °C |  | 9 |
| Thermal Resistance (SOIC-8) | θJC |  | 74.6 |  | °C/W |  | 9 |
| Power Supply Voltage | VCC |  |  | 6.5 | V |  | 5 |
| Operating Junction Temperature Range | TJ |  |  | 150 | ºC |  | 5 |
| Storage Temperature Range | TSTG | -65 |  | 150 | ºC |  | 5 |
| Lead Temperature | TLEAD |  |  | 260 | ºC | Soldering, 10 seconds | 5 |
| ESD (Machine Model) |  |  |  | 400 | V |  | 5 |
| ESD (Human Body Model) |  |  |  | 4000 | V |  | 5 |
| Supply Voltage | VIN | 2.5 |  | 6 | V |  | 5 |
| Ambient Operation Temperature Range | TA | -40 |  | 85 | °C |  | 5 |

## 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 |
|---|---|---|---|---|
| housing | Abs |  | ESD (Human Body Model) 4000 V Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to | 5 |

## CAD (KiCad official)

- Symbol: `AP2115M-3.3TRG1`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ap2115m-3-3trg1-etched.step` / `ap2115m-3-3trg1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap2115m-3-3trg1.step` / `ap2115m-3-3trg1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Diodes Incorporated datasheet](docs/ap2115m-3-3trg1-datasheet.pdf) (19 pp, sha256 `65fa295815d408d7`, retrieved 2026-11-05, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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](docs/ap2115m-3-3trg1-datasheet.pdf)