# AP7311-15WG-7

**Diodes Incorporated** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-25

AP7311-15WG-7 from Diodes Incorporated, in a SOT-25. 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 | IN | power_in | Voltage input pin; bypass to ground through at least a 1µF capacitor, with recommended input voltage of 2V to 6V. |
| 2 | GND | power_in | Ground pin. |
| 3 | EN | input | Enable input, active high; the regulator turns on when EN is driven high (VIH 1.4V min) and off when pulled low (VIL 0.4V max). |
| 4 | NC | unconnected | No connection on the fixed-output version. |
| 5 | OUT | power_out | Voltage output pin; bypass to ground through a 1µF ceramic capacitor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-25 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input voltage (recommended operating) | VIN | 2 |  | 6 | V |  | 4 |
| Output current (recommended operating) | IOUT | 0 |  | 150 | mA | Note 4: stable regulated output without load current | 4 |
| Operating ambient temperature (recommended operating) | TA | -40 |  | 85 | °C |  | 4 |
| Operating junction temperature range (absolute maximum) | TOP | -40 |  | 125 | °C |  | 4 |
| Storage temperature range (absolute maximum) | TST | -65 |  | 150 | °C |  | 4 |
| Input voltage (absolute maximum) | VIN |  |  | 7 | V |  | 4 |
| Power dissipation (absolute maximum) | PD |  |  | 640 | mW | SOT25; ratings apply at ambient temperature 25°C (Note 3) | 4 |
| Maximum junction temperature (absolute maximum) | TJ |  |  | 150 | °C |  | 4 |
| ESD HBM protection (absolute maximum) | ESD HBM |  |  | 6 | kV | Human Body Model | 4 |
| ESD MM protection (absolute maximum) | ESD MM |  |  | 400 | V | Machine Model | 4 |
| Input quiescent current | IQ |  | 55 | 75 | μA | VEN = VIN, IOUT = 0mA | 5 |
| Input quiescent current | IQ |  | 65 | 85 | μA | VEN = VIN, IOUT = 150mA | 5 |
| Dropout voltage | VDropout |  | 150 | 300 | mV | IOUT = 150mA | 5 |
| Output voltage accuracy | VOUT | -2 |  | 2 | % | TA = -40°C to 85°C, IOUT = 30mA | 5 |
| Line regulation | ΔVOUT/ΔVIN/V |  | 0.01 | 0.2 | %/V | VIN = (VOUT +1V) to VIN-Max, VEN = VIN, IOUT = 1mA | 5 |
| Load regulation | ΔVOUT/VOUT | -0.6 |  | 0.6 | % | VIN = (VOUT +1V) to VIN-Max, IOUT from 1mA to 150mA | 5 |
| Current limit | ILIMIT |  | 200 | 300 | mA | VIN = (VOUT +1V) to VIN-Max, VOUT/ROUT = 0.5A | 5 |
| EN input logic low voltage | VIL |  |  | 0.4 | V | VIN = VIN-Min to VIN-Max | 5 |
| EN input logic high voltage | VIH | 1.4 |  |  | V | VIN = VIN-Min to VIN-Max | 5 |
| EN input current | IEN | -1 |  | 1 | μA | VIN = 0V or VIN-Max | 5 |
| Input shutdown current | ISHDN |  | 1 |  | μA | VEN = 0V, IOUT = 0mA | 5 |
| Input leakage current | ILEAK |  | 1 |  | μA | VEN = 0V, OUT grounded | 5 |
| Short-circuit current | ISHORT |  | 50 |  | mA | VIN = VIN-Min to VIN-Max, VOUT < 0.2V | 5 |
| PSRR | PSRR |  | 65 |  | dB | VIN = [VOUT +1V]VDC + 0.5VppAC, f = 100Hz, IOUT = 30mA | 5 |
| Start-up time | tST |  | 80 |  | μs | VEN = 0V to 2.0V, VOUT = 1.8V, IOUT = 150mA | 5 |
| Thermal shutdown threshold | TSHDN |  | 140 |  | °C |  | 5 |
| Thermal shutdown hysteresis | THYS |  | 15 |  | °C |  | 5 |
| Thermal resistance junction-to-ambient | θJA |  | 190 |  | °C/W | SOT25 (Note 6): FR-4 PCB, minimum recommended pad layout, 2oz copper, single sided | 5 |

## CAD (KiCad official)

- Symbol: `AP7311-15WG-7`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-25 (KiCad packages3D, STEP)
- 3D model files: `ap7311-15wg-7-etched.step` / `ap7311-15wg-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap7311-15wg-7.step` / `ap7311-15wg-7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/AP7311-15WG-7.pdf) (13 pp, sha256 `6bf469c670222d24`, retrieved 2026-10-31, tier: manufacturer)
- **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/ap7311-15wg-7-datasheet.pdf)