component
AP2171AW-7
Public Made by Adomby adom
Diodes Incorporated Power Distribution Switches, 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
markdownAP2171AW-7
Diodes Incorporated · Power Distribution Switches · SOT-25
AP2171AW-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 | OUT | power_out | Voltage output pin; all OUT pins must be tied together externally, and the output is current-limited to 1.5A typical with a recommended maximum continuous load current of 1.0A. |
| 2 | GND | power_in | Ground pin; the exposed pad should be connected to GND and thermal mass but should not be used as the electrical ground conduction path. |
| 3 | FLG | output | Over-current and over-temperature fault report; the open-drain flag output goes active low when triggered, after a nominal 7 ms deglitch, and its FLG output FET on-resistance is 20 Ω typical (40 Ω max at 10 mA). |
| 4 | EN | input | Enable input; on the AP2171A this pin is active high, with VIH of 2.0V minimum to VIN and VIL of 0.8V maximum, and the input voltage range is 2.7V to 5.5V. |
| 5 | IN | power_in | Voltage input pin; all IN pins must be tied together externally, with an input voltage range of 2.7V to 5.5V and an absolute maximum of 6.5V. |
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 |
|---|---|---|---|---|---|---|---|
| Input Undervoltage Lockout | VUVLO | 1.6 | 1.9 | 2.5 | V | RLOAD = 1kΩ | 4 |
| Input Shutdown Current | ISHDN | 0.5 | 1 | uA | Disabled, IOUT = 0 | 4 | |
| Input Quiescent Current | IQ | 45 | 70 | µA | Enabled, IOUT = 0 | 4 | |
| Input Leakage Current | ILEAK | 1 | µA | Disabled, OUT grounded | 4 | ||
| Switch On-Resistance (SOT25, 25°C) | RDS(ON) | 95 | 115 | mΩ | VIN = 5V, IOUT = 1A, TA = +25°C, SOT25 package | 4 | |
| Switch On-Resistance (-40°C to +85°C, VIN = 5V) | RDS(ON) | 140 | mΩ | VIN = 5V, IOUT = 1A, -40°C ≤ TA ≤ +85°C | 4 | ||
| Switch On-Resistance (VIN = 3.3V, 25°C) | RDS(ON) | 120 | 140 | mΩ | VIN = 3.3V, IOUT = 1A, TA = +25°C | 4 | |
| Switch On-Resistance (VIN = 3.3V, -40°C to +85°C) | RDS(ON) | 170 | mΩ | VIN = 3.3V, IOUT = 1A, -40°C ≤ TA ≤ +85°C | 4 | ||
| Over-Load Current Limit | ILIMIT | 1.1 | 1.5 | 1.9 | A | VIN = 5V, VOUT = 4.6V, CL = 68µF, -40°C ≤ TA ≤ +85°C | 4 |
| EN Input Leakage | ISINK | 1 | µA | VEN = 5V | 4 | ||
| Output Turn-On Rise Time | tR | 0.6 | 1.5 | ms | CL = 1µF, RLOAD = 10Ω | 4 | |
| Output Turn-Off Fall Time | tF | 0.05 | 0.1 | ms | CL = 1µF, RLOAD = 10Ω | 4 | |
| FLG Output FET On-Resistance | RFLG | 20 | 40 | Ω | IFLG = 10mA | 4 | |
| FLG Blanking Time | tBlank | 4 | 7 | 15 | ms | CIN = 10µF, CL = 68µF | 4 |
| Input Voltage (recommended) | VIN | 2.7 | 5.5 | V | 3 | ||
| Output Current (recommended) | IOUT | 0 | 1 | A | 3 | ||
| Operating Ambient Temperature | TA | -40 | 85 | °C | 3 | ||
| High-Level Input Voltage on EN or EN | VIH | 2 | V | on EN or EN | 3 | ||
| Low-Level Input Voltage on EN or EN | VIL | 0 | 0.8 | V | on EN or EN | 3 | |
| ESD Human Body Model | ESD HBM | 4 | kV | Human Body Model | 3 | ||
| ESD Machine Model (SOT25) | ESD MM | 400 | V | Machine Model, for MSOP-8EP and SOT25 packages | 3 | ||
| Input Voltage (absolute maximum) | VIN | 6.5 | V | 3 | |||
| Enable and Flag Voltage (absolute maximum) | VEN, VFLG | 6.5 | V | 3 | |||
| Maximum Junction Temperature | TJ(MAX) | 150 | °C | 3 | |||
| Storage Temperature Range | TST | -65 | 150 | °C | Note 4: UL recognized rating is -30°C to +70°C; Diodes qualified TST is -65°C to +150°C | 3 | |
| Thermal Resistance Junction-to-Ambient (SOT25) | θJA | 157 | °C/W | SOT25, Note 7: FR-4, 2oz copper, minimum recommended pad layout | 4 |
CAD (KiCad official)
- Symbol:
AP2171AW-7 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-25 (KiCad packages3D, STEP)
- 3D model files:
ap2171aw-7-etched.step/ap2171aw-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap2171aw-7.step/ap2171aw-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (18 pp, sha256
23d4b3f09de80187, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).