# AP7370-33W5-7

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

AP7370-33W5-7 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 | Input voltage pin, with a recommended supply range of 3.2 V to 18 V and an absolute maximum of 20 V. |
| 2 | GND | power_in | Ground reference pin for the regulator. |
| 3 | NC | unconnected | Not connected for the fixed-output version. |
| 4 | NC | unconnected | Not connected for the fixed-output version. |
| 5 | VOUT | power_out | Regulated output voltage, with an absolute maximum output current of 500 mA. |

## 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage | VOUT | 99 |  | 101 | % | VOUT > 2.5V | 3 |
| Input Voltage | VIN | 3.2 |  | 18 | V |  | 3 |
| Current Limit | ILIMIT | 350 |  |  | mA | VOUT > 2.5V, VOUT1 = 98% VOUT | 3 |
| Dropout Voltage | VDROP |  | 500 | 600 | mV | 3.0V ≤ VOUT < 5.0V, IOUT = 100mA | 3 |
| Ground Current | IGND |  | 1.5 | 2.5 | µA | IOUT = 0A | 3 |
| Ground Current | IGND |  | 250 | 300 | µA | VOUT > 2.5V, IOUT = 300mA | 3 |
| Output Voltage Temperature Coefficient | ∆VOUT/(VOUT∆T) | -100 |  | 100 | ppm/°C | IOUT = 100µA, -40°C ≤ TJ ≤ +125°C | 3 |
| Input Voltage | VIN | 3.2 |  | 18 | V |  | 2 |
| Operating Junction Temperature | TJ | -40 |  | 125 | °C |  | 2 |
| Supply Input Voltage | VIN |  |  | 20 | V |  | 2 |
| Output Current | IOUT |  |  | 500 | mA |  | 2 |
| Lead Temperature (Soldering, 10s) | TLEAD |  |  | 260 | °C | Soldering, 10s | 2 |
| Operating Junction Temperature | TJ |  |  | 150 | °C |  | 2 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 2 |
| ESD (Change Device Model) |  |  |  | 1500 | V |  | 2 |
| ESD (Human Body Model) |  |  |  | 6000 | V |  | 2 |
| Thermal Resistance (Junction to Ambient), SOT25 | θJA |  | 155 |  | °C/W | SOT25 package | 2 |
| Thermal Resistance (Junction to Case), SOT25 | θJC |  | 23 |  | °C/W | SOT25 package | 2 |

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

- Symbol: `AP7370-33W5-7`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-25, generated on the KiCad land (body 1.6 x 3 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: `ap7370-33w5-7-etched.step` / `ap7370-33w5-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap7370-33w5-7.step` / `ap7370-33w5-7.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/AP7370-33W5-7.pdf) (17 pp, sha256 `212ff738d2411cf6`, retrieved 2026-11-12, 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:** land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).

[Datasheet PDF](docs/ap7370-33w5-7-datasheet.pdf)