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AP7331-12WG-7
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Diodes Incorporated Linear Voltage Regulators (LDO), SOT-25-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAP7331-12WG-7
Diodes Incorporated · Linear Voltage Regulators (LDO) · SOT-25-5
AP7331-12WG-7 from Diodes Incorporated, in a SOT-25-5. 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, to be bypassed to ground through at least a 1µF capacitor (recommended input range 2V to 6V). |
| 2 | GND | power_in | Ground. |
| 3 | EN | input | Enable input, active high; logic low below 0.4V turns the output off and logic high above 1.4V turns it on. |
| 4 | NC | unconnected | No connection on the fixed-output SOT25 version. |
| 5 | OUT | power_out | Voltage output pin, to be bypassed to ground through a 1µF ceramic capacitor (300mA maximum output current). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-25-5 |
| 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 (recommended) | VIN | 2 | 6 | V | 3 | ||
| Output Current (recommended) | IOUT | 0 | 300 | mA | 3 | ||
| Operating Ambient Temperature | TA | -40 | 85 | °C | 3 | ||
| Input Voltage (absolute max) | VIN | 7 | V | 3 | |||
| ESD HBM | ESD HBM | 6 | kV | Human Body Model | 3 | ||
| ESD MM | ESD MM | 400 | V | Machine Model | 3 | ||
| Operating Junction Temperature Range | TOP | -40 | 125 | °C | 3 | ||
| Storage Temperature Range | TST | -65 | 150 | °C | 3 | ||
| Power Dissipation SOT25 | PD | 640 | mW | SOT25, ambient 25°C | 3 | ||
| Maximum Junction Temperature | TJ | 150 | °C | 3 | |||
| Input Quiescent Current | IQ | 55 | 75 | μA | VEN = VIN, IOUT = 0mA | 4 | |
| Input Quiescent Current | IQ | 65 | 85 | μA | VEN = VIN, IOUT = 300mA | 4 | |
| Input Shutdown Current | ISHDN | 1 | μA | VEN = 0V, IOUT = 0mA | 4 | ||
| Input Leakage Current | ILEAK | 1 | μA | VEN = 0V, OUT grounded | 4 | ||
| Dropout Voltage | VDropout | 300 | 550 | mV | IOUT = 300mA | 4 | |
| Output Voltage Accuracy | VOUT | -2 | 2 | % | TA = -40°C to 85°C, IOUT = 30mA | 4 | |
| Line Regulation | ΔVOUT/ΔVIN/VOUT | 0.01 | 0.2 | %/V | VIN = (VOUT +1V) to VIN-Max, VEN = VIN, IOUT = 1mA | 4 | |
| Load Regulation | ΔVOUT/VOUT | -0.6 | 0.6 | % | VIN = (VOUT +1V) to VIN-Max, IOUT from 1mA to 300mA | 4 | |
| Current Limit | ILIMIT | 400 | 600 | mA | VOUT/ROUT = 1A | 4 | |
| EN Input Logic Low Voltage | VIL | 0.4 | V | VIN = VIN-Min to VIN-Max | 4 | ||
| EN Input Logic High Voltage | VIH | 1.4 | V | VIN = VIN-Min to VIN-Max | 4 | ||
| EN Input Current | IEN | -1 | 1 | μA | VIN = 0V or VIN-Max | 4 | |
| Thermal Resistance Junction-to-Ambient SOT25 | θJA | 190 | °C/W | SOT25 (Note 5) | 4 | ||
| Short-circuit Current | ISHORT | 100 | mA | VIN = VIN-Min to VIN-Max, VOUT < 0.2V | 4 | ||
| Start-up Time | tST | 80 | μs | VEN = 0V to 2.0V, VOUT = 1V, IOUT = 300mA | 4 | ||
| PSRR | PSRR | 65 | dB | VIN = [VOUT +1V]VDC + 0.5VppAC, f = 100Hz, IOUT =30mA | 4 | ||
| Thermal Shutdown Threshold | TSHDN | 140 | °C | 4 | |||
| Thermal Shutdown Hysteresis | THYS | 15 | °C | 4 |
CAD (KiCad official)
- Symbol:
AP7331-12WG-7 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-25-5 (KiCad packages3D, STEP)
- 3D model files:
ap7331-12wg-7-etched.step/ap7331-12wg-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap7331-12wg-7.step/ap7331-12wg-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (13 pp, sha256
9fdedb2b73161d34, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).