component
AP3445LW6-7
Public Made by Adomby adom
Diodes Incorporated DC-DC Converters, SOT-26. 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
markdownAP3445LW6-7
Diodes Incorporated · DC-DC Converters · SOT-26
AP3445LW6-7 from Diodes Incorporated, in a SOT-26. 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 | EN | input | Enable control input; forcing this pin above 1.5V enables the chip and below 0.4V shuts down the device. |
| 2 | GND | power_in | Ground pin. |
| 3 | LX | passive | Drains of the internal main and synchronous power MOSFETs (switching node, connects to the inductor). |
| 4 | VIN | power_in | Bias supply and main chip power supply pin, operating range 2.7V to 5.5V. |
| 5 | PG | output | Power good indicator, open drain output; pulled up to VIN when the output voltage is within 20% of the regulation level, otherwise low. |
| 6 | FB | input | Feedback voltage input to the internal error amplifier, with a threshold voltage of 0.6V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-26 |
| Category | Power Supply Chip |
| Pins | 6 |
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 Range | VIN | 2.7 | 5.5 | V | 5 | ||
| Input UVLO Threshold | VUVLO | 2.4 | 2.5 | V | VIN Rises | 5 | |
| Shutdown Current | ISD | 0.1 | 1 | µA | VEN = 0V | 5 | |
| Regulated Feedback Voltage | VFB | 0.591 | 0.6 | 0.609 | V | 5 | |
| FB Leakage Current | IFB | 0.2 | µA | VFB = 1V | 5 | ||
| Peak Inductor Current | ILIM | 2.5 | A | 5 | |||
| Oscillator Frequency | fOSC | 0.8 | 1 | 1.2 | MHz | 5 | |
| Maximum Duty Cycle | DMAX | 100 | % | 5 | |||
| EN Threshold High | VENH | 1.5 | V | 5 | |||
| EN Threshold Low | VENL | 0.4 | V | 5 | |||
| EN Leakage Current | IEN | -1 | 1 | µA | VIN= VEN =5V | 5 | |
| Soft-start Time | tSS | 0.7 | 1 | 1.3 | ms | 5 | |
| Quiescent Current | IQ | 55 | µA | VFB = 0.65V | 5 | ||
| Input UVLO Hysteresis | VHYS | 0.2 | V | VIN Falls | 5 | ||
| Drain-Source On-State Resistance High Side | RDS(ON) | 100 | mΩ | ILX = 100mA High Side | 5 | ||
| Drain-Source On-State Resistance Low Side | RDS(ON) | 60 | mΩ | ILX = 100mA Low Side | 5 | ||
| Output Discharge Switch On Resistance | RDISCH | 50 | Ω | 5 | |||
| Short Circuit Protection Latch Off Threshold | VSCP | 0.42 | V | AP3445L only | 5 | ||
| Short Circuit Protection Delay Time | TDELAY_SCP | 30 | ms | 5 | |||
| Over Temperature Protection | TOTP | 150 | °C | 5 | |||
| OTP Hysteresis | TDTH | 20 | °C | 5 | |||
| VOUT Over Voltage Protection | VOVP | 0.72 | V | AP3445L only | 5 | ||
| VIN Over Voltage Protection | VIOVP | 6.3 | V | VIN Rises | 5 | ||
| IOVP Hysteresis | VIHSY | 0.35 | V | VIN Falls | 5 | ||
| Supply Voltage (recommended) | VIN | 2.7 | 5.5 | V | 4 | ||
| Junction Temperature Range | TJ | -40 | 125 | °C | 4 | ||
| Operating Ambient Temperature | TA | -40 | 85 | °C | 4 | ||
| Input Voltage (abs max) | VIN | -0.3 | 6 | V | 4 | ||
| EN Pin Voltage | VEN | -0.3 | V | max VIN+0.3 V | 4 | ||
| FB Pin Voltage | VFB | -0.3 | V | max VIN+0.3 V | 4 | ||
| LX Pin Voltage | VLX | -0.3 | V | max VIN+0.3 V | 4 | ||
| LX Pin Voltage transient | VLX | -3 | V | <20ns, max VIN +3 V | 4 | ||
| Power Dissipation | PD | 0.588 | W | On PCB, TA = +25°C | 4 | ||
| Operating Junction Temperature | TJ | 150 | °C | 4 | |||
| Storage Temperature | TSTG | -55 | 150 | °C | 4 | ||
| ESD Human Body Model | VHBM | 2000 | V | JESD22-A114 | 4 | ||
| ESD Charge Device Model | VCDM | 1000 | V | JESD22-C101 | 4 | ||
| Thermal Resistance Junction to Ambient | θJA | 170 | °C/W | 4 | |||
| Thermal Resistance Junction to Case | θJC | 130 | °C/W | Simulation | 4 |
CAD (KiCad official)
- Symbol:
AP3445LW6-7 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-26 (KiCad packages3D, STEP)
- 3D model files:
ap3445lw6-7-etched.step/ap3445lw6-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap3445lw6-7.step/ap3445lw6-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (13 pp, sha256
8b5053a5e3f8a015, 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).