component
WD3136E-6
Public Made by Adomby adom
WILLSEMI Will Semicon DC-DC Converters, SOT-23-6L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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WD3136E-6
WILLSEMI Will Semicon · DC-DC Converters · SOT-23-6L
WD3136E-6 from WILLSEMI Will Semicon, in a SOT-23-6L. 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 | LX | output | Switch node of the internal 32V/3A power MOSFET, with a DC voltage range of -0.3 to 32 V. |
| 2 | GND | power_in | Ground reference for the device; the CIN and COUT ground returns should be connected close to this pin. |
| 3 | FB | input | Feedback input regulated to a 600mV typical reference, with a voltage range of -0.3 to 6 V; it is a high-impedance pin, so R2 (1kΩ to 10kΩ) should be placed close to it. |
| 4 | EN | input | Enable input with a 1.5 V typical high threshold and 0.4 V low threshold, pulled down internally by 1.8 MΩ; drive it below 0.4 V to place the device in shutdown. |
| 5 | IN | power_in | Power supply input with a 2.4 V to 20 V operating range and an absolute maximum of -0.3 to 28 V. |
| 6 | NC | unconnected | No connection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WILLSEMI Will Semicon |
| Package | SOT-23-6L |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Operation Voltage Range | VIN | 2.4 | 20 | V | 4 | ||
| Maximum Duty Cycle | DMAX | 91 | % | 4 | |||
| Enable Low Voltage | VENL | 0.4 | V | 4 | |||
| Enable High Voltage | VENH | 1.5 | V | 4 | |||
| Quiescent Current | IQ | 0.25 | mA | No Switching, VFB=0.7V | 4 | ||
| Supply Current | IS | 0.5 | mA | Switching at no load | 4 | ||
| Shutdown Current | ISD | 0.05 | 1 | μA | VEN<0.4V | 4 | |
| Operation Frequency | fOSC | 0.8 | 1 | 1.2 | MHz | 4 | |
| Feedback Reference | VFB | 0.588 | 0.6 | 0.612 | V | 4 | |
| Feedback Input Bias Current | IFB | 0.1 | 1 | μA | 4 | ||
| Main Switch Leakage Current | ILN_MS | 0.1 | 1 | μA | VLX=32V, Disable | 4 | |
| Under Voltage Lockout | VUVLO | 2.2 | 2.39 | V | VIN Rising | 4 | |
| UVLO Hysteresis | VHYS | 0.1 | V | 4 | |||
| EN Pull-down Resistance | REN | 1.8 | MΩ | 4 | |||
| EN Shutdown Delay | tSHDN, EN | 0.12 | ms | 4 | |||
| On Resistance | RON | 0.1 | Ω | ILX=1A | 4 | ||
| Current Limit | ILIM | 3 | A | D=50% | 4 | ||
| Thermal Shutdown | TSD | 160 | °C | 4 | |||
| TSD Hysteresis | TSD-HYS | 30 | °C | 4 | |||
| VIN Pin Voltage Range | VIN | -0.3 | 28 | V | 3 | ||
| EN Pin Voltage Range | VEN | -0.3 | 28 | V | 3 | ||
| LX Pin Voltage Range (DC) | VLX | -0.3 | 32 | V | 3 | ||
| FB Pin Voltage Range | VFB | -0.3 | 6 | V | 3 | ||
| Operating Junction Temperature | TJ | -40 | 150 | oC | 3 | ||
| Lead Temperature (Soldering, 10s) | TL | 260 | oC | 10s soldering | 3 | ||
| Storage Temperature | Tstg | -55 | 150 | oC | 3 | ||
| Electrostatic Discharge HBM | HBM | 4000 | V | 3 | |||
| Electrostatic Discharge CDM | CDM | 2000 | V | 3 | |||
| Input Voltage Range | VIN | 2.4 | 20 | V | 3 | ||
| Output Voltage Range | VOUT | 24 | V | VIN~24 as printed; lower limit is VIN | 3 | ||
| Inductor | L | 4.7 | 10 | μH | 3 | ||
| Input Capacitor | CIN | 10 | μF | 3 | |||
| Output Capacitor | COUT | 10 | μF | 3 | |||
| Resistance Between FB Pin And GND | R2 | 1 | 10 | kΩ | 3 | ||
| Operating Ambient Temperature | TA | -40 | 85 | oC | 3 | ||
| Operating Junction Temperature | TJ | -40 | 125 | oC | 3 | ||
| Junction To Ambient Thermal Resistance, SOT-23-6L | RθJA | 90 | oC/W | Note 1: 1.5x1.5 inch 2-layer FR4 board, 1.0x1.0 inch 2oz copper, still air | 3 |
CAD (KiCad official)
- Symbol:
WD3136E-6 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files:
wd3136e-6-etched.step/wd3136e-6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);wd3136e-6.step/wd3136e-6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WILLSEMI Will Semicon datasheet (13 pp, sha256
75035949578eaf0e, retrieved 2026-10-17, 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).
# WD3136E-6
**WILLSEMI Will Semicon** · DC-DC Converters · SOT-23-6L
WD3136E-6 from WILLSEMI Will Semicon, in a SOT-23-6L. 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 | LX | output | Switch node of the internal 32V/3A power MOSFET, with a DC voltage range of -0.3 to 32 V. |
| 2 | GND | power_in | Ground reference for the device; the CIN and COUT ground returns should be connected close to this pin. |
| 3 | FB | input | Feedback input regulated to a 600mV typical reference, with a voltage range of -0.3 to 6 V; it is a high-impedance pin, so R2 (1kΩ to 10kΩ) should be placed close to it. |
| 4 | EN | input | Enable input with a 1.5 V typical high threshold and 0.4 V low threshold, pulled down internally by 1.8 MΩ; drive it below 0.4 V to place the device in shutdown. |
| 5 | IN | power_in | Power supply input with a 2.4 V to 20 V operating range and an absolute maximum of -0.3 to 28 V. |
| 6 | NC | unconnected | No connection. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WILLSEMI Will Semicon |
| Package | SOT-23-6L |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Operation Voltage Range | VIN | 2.4 | | 20 | V | | 4 |
| Maximum Duty Cycle | DMAX | | | 91 | % | | 4 |
| Enable Low Voltage | VENL | | | 0.4 | V | | 4 |
| Enable High Voltage | VENH | 1.5 | | | V | | 4 |
| Quiescent Current | IQ | | | 0.25 | mA | No Switching, VFB=0.7V | 4 |
| Supply Current | IS | | | 0.5 | mA | Switching at no load | 4 |
| Shutdown Current | ISD | | 0.05 | 1 | μA | VEN<0.4V | 4 |
| Operation Frequency | fOSC | 0.8 | 1 | 1.2 | MHz | | 4 |
| Feedback Reference | VFB | 0.588 | 0.6 | 0.612 | V | | 4 |
| Feedback Input Bias Current | IFB | | 0.1 | 1 | μA | | 4 |
| Main Switch Leakage Current | ILN_MS | | 0.1 | 1 | μA | VLX=32V, Disable | 4 |
| Under Voltage Lockout | VUVLO | | 2.2 | 2.39 | V | VIN Rising | 4 |
| UVLO Hysteresis | VHYS | | 0.1 | | V | | 4 |
| EN Pull-down Resistance | REN | | 1.8 | | MΩ | | 4 |
| EN Shutdown Delay | tSHDN, EN | | 0.12 | | ms | | 4 |
| On Resistance | RON | | 0.1 | | Ω | ILX=1A | 4 |
| Current Limit | ILIM | | 3 | | A | D=50% | 4 |
| Thermal Shutdown | TSD | | 160 | | °C | | 4 |
| TSD Hysteresis | TSD-HYS | | 30 | | °C | | 4 |
| VIN Pin Voltage Range | VIN | -0.3 | | 28 | V | | 3 |
| EN Pin Voltage Range | VEN | -0.3 | | 28 | V | | 3 |
| LX Pin Voltage Range (DC) | VLX | -0.3 | | 32 | V | | 3 |
| FB Pin Voltage Range | VFB | -0.3 | | 6 | V | | 3 |
| Operating Junction Temperature | TJ | -40 | | 150 | oC | | 3 |
| Lead Temperature (Soldering, 10s) | TL | | | 260 | oC | 10s soldering | 3 |
| Storage Temperature | Tstg | -55 | | 150 | oC | | 3 |
| Electrostatic Discharge HBM | HBM | | | 4000 | V | | 3 |
| Electrostatic Discharge CDM | CDM | | | 2000 | V | | 3 |
| Input Voltage Range | VIN | 2.4 | | 20 | V | | 3 |
| Output Voltage Range | VOUT | | | 24 | V | VIN~24 as printed; lower limit is VIN | 3 |
| Inductor | L | 4.7 | | 10 | μH | | 3 |
| Input Capacitor | CIN | | 10 | | μF | | 3 |
| Output Capacitor | COUT | | 10 | | μF | | 3 |
| Resistance Between FB Pin And GND | R2 | 1 | | 10 | kΩ | | 3 |
| Operating Ambient Temperature | TA | -40 | | 85 | oC | | 3 |
| Operating Junction Temperature | TJ | -40 | | 125 | oC | | 3 |
| Junction To Ambient Thermal Resistance, SOT-23-6L | RθJA | | | 90 | oC/W | Note 1: 1.5x1.5 inch 2-layer FR4 board, 1.0x1.0 inch 2oz copper, still air | 3 |
## CAD (KiCad official)
- Symbol: `WD3136E-6`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files: `wd3136e-6-etched.step` / `wd3136e-6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `wd3136e-6.step` / `wd3136e-6.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [WILLSEMI Will Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954847886786560) (13 pp, sha256 `75035949578eaf0e`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/wd3136e-6-datasheet.pdf)