# SGM6623YN6G

**SGMICRO** · DC-DC Converters · SOT-23-6

SGM6623YN6G from SGMICRO, in a SOT-23-6. 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 | SW | output | Switching node of the boost converter, connected to the input source through the boost inductor. |
| 2 | GND | power_in | Ground reference for the device. |
| 3 | FB | input | Feedback input to the error amplifier that regulates the output voltage (VREF is 1.177V to 1.231V, 1.205V typical). |
| 4 | EN | input | Enable input: logic high enables and logic low disables the regulator (VIH min 1.1V, VIL max 0.3V), it must be pulled up to enable the device because an internal ~570kΩ pull-down disables it otherwise, and an edge slope rate above 10V/ms is recommended for stable on/off transitions. |
| 5 | VS | power_in | Supply power input for the internal circuit, connected to the converter output (VS input range 3V to 13V). |
| 6 | NC | unconnected | Not connected internally; the datasheet recommends soldering it to the ground plane for better thermal dissipation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| Package | SOT-23-6 |
| 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 |
|---|---|---|---|---|---|---|---|
| Sustainable Input Voltage Range | VIN | 0.8 |  | 12 | V | The VS pin connects to output; +25℃ | 4 |
| VS Input Voltage Range | VVS | 3 |  | 13 | V | VIN is in 0.8V to 12.5V range; +25℃ | 4 |
| Operating Quiescent Current into VS | IQ |  | 47 | 65 | μA | No switching, no load; Full (-40℃ to +85℃) | 4 |
| EN Internal Pull-Down Resistor | REN | 400 | 570 | 740 | kΩ | Full (-40℃ to +85℃) | 4 |
| Voltage Feedback Regulation Voltage | VREF | 1.177 | 1.205 | 1.231 | V | Full (-40℃ to +85℃) | 4 |
| Switching Frequency | fSW | 480 | 600 | 720 | kHz | Full (-40℃ to +85℃) | 4 |
| Over-Voltage Protection Threshold | VOVP | 13.3 | 13.8 | 14.3 | V | +25℃ | 4 |
| N-Channel MOSFET Current Limit | ILIM | 3.65 | 4.4 | 5.25 | A | +25℃ | 4 |
| Operating Ambient Temperature Range |  | -40 |  | 85 | ℃ |  | 2 |
| Operating Junction Temperature Range |  | -40 |  | 125 | ℃ |  | 2 |
| Voltages on EN and FB |  | -0.3 |  | 6 | V |  | 2 |
| Voltages on SW and VS |  | -0.3 |  | 14.5 | V |  | 2 |
| Junction Temperature |  |  |  | 150 | ℃ |  | 2 |
| Storage Temperature Range |  | -65 |  | 150 | ℃ |  | 2 |
| Lead Temperature (Soldering) |  |  |  | 260 | ℃ | Soldering, 10s | 2 |
| ESD Susceptibility HBM |  |  |  | 3000 | V |  | 2 |
| Package Thermal Resistance SOT-23-6 | θJA |  | 190 |  | ℃/W | SOT-23-6 package | 2 |

## CAD (KiCad official)

- Symbol: `SGM6623YN6G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `sgm6623yn6g-etched.step` / `sgm6623yn6g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sgm6623yn6g.step` / `sgm6623yn6g.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [SGMICRO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588920852117401600) (10 pp, sha256 `e3de800f3966b850`, retrieved 2026-10-18, 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/sgm6623yn6g-datasheet.pdf)