component
AP131-25WG-7
Public Made by Adomby adom
Diodes Incorporated Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-25. 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
markdownAP131-25WG-7
Diodes Incorporated · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-25
AP131-25WG-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 | Input voltage pin, operating range 2.7V to 5.5V (absolute maximum +6V), decoupled with a 1uF CIN in the typical application. |
| 2 | GND | power_in | Ground pin. |
| 3 | EN | input | Active-high enable pin: output ON at 1.5V to VIN, OFF at 0V to 0.8V, with enable pin current below 0.1uA. |
| 4 | BP | passive | Band-gap bypass pin where an external capacitor (0.1uF in the typical circuit) can be connected to reduce output noise. |
| 5 | OUT | power_out | Regulated fixed output voltage (2.5V for the -25 version) delivering up to 300mA, with a 10uF COUT in the typical application. |
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 |
|---|---|---|---|---|---|---|---|
| Dropout Voltage | VDROP | 400 | 500 | mV | IL = 300mA | 3 | |
| Current Limit | ILIMIT | 350 | 450 | mA | VIN = 5V, VOUT = 0V | 3 | |
| Short Circuit Current | Ishort | 150 | 300 | mA | VOUT < 1.05V | 3 | |
| Line Regulation | ΔVLINE | 0.1 | 0.3 | %/V | IOUT = 1mA, VIN =(VOUT +1V ) to 5.5V | 3 | |
| Load Regulation | ΔVLOAD | 30 | 35 | mV | IL = 1~300mA, VIN = 5V | 3 | |
| Output Voltage Accuracy | ΔVOUT | -2 | 2 | % | IL = 1mA, VIN = 5V | 3 | |
| Output Voltage Temperature Coefficient | 50 | 150 | PPM/°C | 3 | |||
| Standby Current | ISB | 5 | μA | IL = 0mA, VIN = 5V, EN = 0V | 3 | ||
| Quiescent Current | IQ | 50 | 100 | μA | IL = 0mA, VIN = 5V, EN = 5V | 3 | |
| Enable Pin Voltage Output ON | VENON | 1.5 | V | Output ON (max printed as VIN) | 3 | ||
| Enable Pin Voltage Output OFF | VENOFF | 0 | 0.8 | V | Output OFF | 3 | |
| Input Voltage | VIN | 2.7 | 5.5 | V | 2 | ||
| Output Current | IOUT | 0 | 300 | mA | 2 | ||
| Operating Ambient Temperature | TA | -40 | 85 | °C | 2 | ||
| Input Voltage | VCC | 6 | V | TA = +25°C | 2 | ||
| Operating Junction Temperature Range | TOP | -40 | 125 | °C | TA = +25°C | 2 | |
| Storage Temperature Range | TST | -65 | 150 | °C | TA = +25°C | 2 | |
| Power Dissipation | PD | 250 | mW | PD@ TA = 25°C SOT25 | 2 | ||
| Ripple Rejection | PSRR | 60 | dB | F = 100Hz, CIN = 1μF, CO = 10µF, IL = 100mA | 3 | ||
| Enable Pin Current | IEN | 0.1 | μA | 3 | |||
| Enable Delay Time | TDELAY | 8 | µS | CBP = 0.1μF, COUT = 1μF, IOUT = 30mA | 3 | ||
| Thermal Resistance Junction-to-Ambient | ϴJA | 163 | °C/W | SOT25 | 3 | ||
| Thermal Resistance Junction-to-Case | ϴJC | 53 | °C/W | SOT25 | 3 |
CAD (KiCad official)
- Symbol:
AP131-25WG-7 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-25 (KiCad packages3D, STEP)
- 3D model files:
ap131-25wg-7-etched.step/ap131-25wg-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap131-25wg-7.step/ap131-25wg-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (7 pp, sha256
3398951f7d054688, retrieved 2026-10-26, 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).