# AP7315DQ-25W5-7

**Diodes Incorporated** · Linear Voltage Regulators (LDO) · SOT-25

AP7315DQ-25W5-7 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 and footprint from KiCad-official CAD; the 3D model is generated from the datasheet's package dimensions.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | power_in | Power input pin; operating input range is 1.7V to 5.25V (6.0V absolute maximum). |
| 2 | GND | power_in | Ground pin. |
| 3 | EN | input | Enable pin that must be driven high or low and must not float; high (1.3V to 5.25V) enables the regulator and low (0 to 0.5V) puts it into shutdown. |
| 4 | NC | unconnected | No connection. |
| 5 | VOUT | power_out | Power output pin; fixed 2.5V output for this variant with 150mA guaranteed output current and output discharge when disabled. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-25 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Line Regulation | dVOUT/dVIN/VOUT |  | 0.02 | 0.1 | %/V | VIN = (VOUT, Nom + 1.0V) to 5.25V, IOUT = 1.0mA | 3 |
| Load Regulation | dVOUT/VOUT/dIOUT |  | 0.5 | 1 | %/A | VIN = VOUT - Nom + 1.0V, IOUT = 1mA to 150mA | 3 |
| Quiescent Current | IQ | 20 | 35 | 60 | μA | IOUT = 0mA | 3 |
| Quiescent Current | IQ | 30 | 60 | 100 | μA | IOUT = 150mA | 3 |
| Standby Current | ISTANDBY |  | 0.01 | 1 | μA | VEN = 0V (Disabled) | 3 |
| Dropout Voltage |  |  | 0.22 | 0.32 | V | IOUT = 150mA, 2.5V ≤ VOUT < 2.8V | 3 |
| EN Input Low Voltage |  | 0 |  | 0.5 | V |  | 3 |
| EN Input High Voltage |  | 1.3 |  | 5.25 | V |  | 3 |
| EN Input Leakage |  | -1 |  | 1 | µA | VEN = 0, VIN = 5.0V or VEN = 5.0V, VIN = 0V | 3 |
| Input Voltage Range | VIN | 1.7 |  | 5.25 | V |  | 3 |
| Output Current | IOUT | 0 |  | 150 | mA |  | 3 |
| Operating Junction Temperature | TJ | -40 |  | 125 | °C |  | 3 |
| Operating Ambient Temperature | TA | -40 |  | 125 | °C | Ambient temperature range is subject to the junction temperature not exceeding 125°C | 3 |
| Input Voltage | VIN |  |  | 6 | V | TA = +25°C | 2 |
| Input Voltage EN | VEN |  |  | 6 | V | TA = +25°C | 2 |
| Output Voltage | VOUT | -0.3 |  |  | V | -0.3 to VIN +0.3 V, TA = +25°C | 2 |
| Output Current | IOUT |  |  | 300 | mA | TA = +25°C | 2 |
| Power Dissipation | PD |  |  | 400 | mW | TA = +25°C | 2 |
| Operating Junction Temperature | TJ | -40 |  | 150 | °C | TA = +25°C | 2 |
| Storage Temperature | TSTG | -55 |  | 150 | °C | TA = +25°C | 2 |
| Output Current |  |  | 150 |  | mA |  | 3 |
| Fold-back Short Current |  |  | 55 |  | mA | VOUT Short to Ground | 3 |
| PSRR |  |  | 75 |  | dB | VIN = (VOUT+1V)VDC + 0.2Vp-pAC, VOUT ≥ 1.8V, IOUT = 30mA, f = 1kHz | 3 |
| Output Noise Voltage |  |  | 60 |  | µVrms | BW = 10Hz to 100kHz, IOUT = 30mA | 3 |
| Output Voltage Temperature Coefficient |  |  | 30 |  | ppm/°C | IOUT = 30mA, TA = -40°C to +85°C (printed ±30) | 3 |
| On Resistance of N-channel for Auto-Discharge |  |  | 30 |  | Ω | VIN = 4.0V VEN = 0V (Disabled) | 3 |
| Thermal Resistance Junction to Ambient | ϴJA |  | 179 |  | °C/W |  | 3 |
| Thermal Resistance Junction to Case | ϴJC |  | 52 |  | °C/W |  | 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 - Matte Tin Plated Leads, Solderable per MIL￾STD-202, Method 208 • Weight: 0.016 grams (Approximate) | 1 |

## CAD (land: KiCad; 3D: generated from the datasheet)

- Symbol: `AP7315DQ-25W5-7`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-25, generated on the KiCad land (body 1.6 x 2.8 mm, terminals on the pads, 1.1 mm tall, datasheet A, nominal). KiCad's stock model for this land is taller than the datasheet allows, so the model is generated from the datasheet drawing; the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files: `ap7315dq-25w5-7-etched.step` / `ap7315dq-25w5-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap7315dq-25w5-7.step` / `ap7315dq-25w5-7.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/AP7315DQ-25W5-7.pdf) (12 pp, sha256 `21288c98424a2234`, retrieved 2026-11-13, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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:** land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).

[Datasheet PDF](docs/ap7315dq-25w5-7-datasheet.pdf)