# AP7343D-12W5-7

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

AP7343D-12W5-7 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 | VIN | power_in | Power input pin, operating range 1.7V to 5.25V (6.0V absolute maximum), with a minimum 0.47µF ceramic capacitor recommended to GND. |
| 2 | GND | power_in | Ground pin, to be connected to the external circuit ground. |
| 3 | EN | input | Enable pin that must be driven high or low and must not be floating; high (≥1.3V) enables the regulator and low (≤0.5V) puts it into shutdown mode. |
| 4 | NC | unconnected | No connection. |
| 5 | VOUT | power_out | Regulated power output pin, fixed 1.2V for this AP7343D-12 variant with output auto-discharge, up to 300mA, with 1µF output capacitor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-25 |
| Category | Power Management ICs |
| 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 | VIN | 1.7 |  | 5.25 | V | TA = -40°C to +85°C | 4 |
| Line Regulation | dVOUT/dVIN/VOUT |  | 0.02 | 0.1 | %/V | VIN = (VOUT, Nom +1.0V) to 5.25V, IOUT = 1.0mA | 4 |
| Load Regulation |  |  | 15 | 30 | mV | VIN = VOUT - Nom +1.0V, IOUT = 1mA to 300mA | 4 |
| Quiescent Current | IQ |  | 35 | 60 | µA | IOUT = 0mA | 4 |
| Standby Current | ISTANDBY |  | 0.01 | 1 | µA | VEN = 0V (Disabled) | 4 |
| Dropout Voltage (SOT25, 1.0V < VOUT ≤ 1.2V) |  |  | 0.46 | 0.72 | V | IOUT = 300mA | 4 |
| EN Input Low Voltage |  | 0 |  | 0.5 | V |  | 4 |
| EN Input High Voltage |  | 1.3 |  | 5.25 | V |  | 4 |
| EN Input Leakage |  | -1 |  | 1 | µA | VEN = 0, VIN = 5.0V or VEN = 5.0V, VIN = 0V | 4 |
| Output Current | IOUT | 300 |  |  | mA |  | 4 |
| Fold-back Short Current |  |  | 55 |  | mA | VOUT Short to Ground | 4 |
| PSRR | PSRR |  | 75 |  | dB | f = 1kHz, IOUT = 30mA, VOUT ≥ 1.8V (guaranteed by design) | 4 |
| Output Noise Voltage |  |  | 60 |  | µVrms | BW = 10Hz to 100kHz, IOUT = 30mA | 4 |
| Output Voltage Temperature Coefficient |  |  | 30 |  | ppm/°C | IOUT = 30mA, TA = -40°C to +85°C; printed ±30 | 4 |
| Thermal Shutdown Threshold | TSHDN |  | 150 |  | °C |  | 4 |
| Thermal Shutdown Hysteresis | THYS |  | 20 |  | °C |  | 4 |
| On Resistance of N-Channel for Auto-Discharge |  |  | 30 |  | Ω | VIN = 4.0V, VEN = 0V (Disabled) | 4 |
| Thermal Resistance Junction to Ambient (SOT25) | θJA |  | 179 |  | °C/W | SOT25 | 4 |
| Thermal Resistance Junction to Case (SOT25) | θJC |  | 52 |  | °C/W | SOT25 | 4 |
| Input Voltage (recommended) | VIN | 1.7 |  | 5.25 | V |  | 3 |
| Output Current (recommended) | IOUT | 0 |  | 300 | mA |  | 3 |
| Operating Junction Temperature (recommended) | TJ | -40 |  | 125 | °C |  | 3 |
| Operating Ambient Temperature (recommended) | TA | -40 |  | 85 | °C |  | 3 |
| Input Voltage (abs max) | VIN |  |  | 6 | V | TA = +25°C | 3 |
| EN Pin Input Voltage (abs max) | VEN |  |  | 6 | V | TA = +25°C | 3 |
| Output Voltage (abs max) | VOUT | -0.3 |  |  | V | -0.3 to VIN +0.3 V | 3 |
| Output Current (abs max) | IOUT |  |  | 400 | mA | TA = +25°C | 3 |
| Power Dissipation | PD |  |  | 400 | mW | TA = +25°C | 3 |
| Operating Ambient Temperature (abs max) | TA | -40 |  | 85 | °C |  | 3 |
| Operating Junction Temperature (abs max) | TJ |  |  | 125 | °C |  | 3 |
| Storage Temperature | TSTG | -55 |  | 125 | °C |  | 3 |
| ESD HBM | ESD HBM | 2 |  |  | kV | >2 kV | 3 |
| ESD MM | ESD MM | 200 |  |  | V | >200 V | 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 | copper |  | capacitor is recommended between VIN and GND pins to decouple input power supply glitch. This input capacitor must be located as close as possible to the device to assure input stability and reduce no | 12 |

## CAD (KiCad official)

- Symbol: `AP7343D-12W5-7`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-25 (KiCad packages3D, STEP)
- 3D model files: `ap7343d-12w5-7-etched.step` / `ap7343d-12w5-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap7343d-12w5-7.step` / `ap7343d-12w5-7.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/AP7343D-12W5-7.pdf) (20 pp, sha256 `34e6b63381da732c`, retrieved 2026-10-26, 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:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/ap7343d-12w5-7-datasheet.pdf)