component
U3213
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UNI SEMIC Power Distribution Switches, SOP-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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U3213
UNI SEMIC · Power Distribution Switches · SOP-7
U3213 from UNI SEMIC, in a SOP-7. 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 | VDD | power_in | Chip supply pin that also serves as the output voltage feedback input when FB is left floating; the datasheet recommends a 0.1uF SMD capacitor, with VDD_ON typically 7.5 V, VDD undervoltage at 4.5 V, VDD overvoltage protection at 24 V, and clamp at 26 V (30 V absolute supply maximum). |
| 2 | GND | power_in | Chip reference ground. |
| 3 | FB | input | Feedback input pin; when left floating the output defaults to 14.3 V, the internal reference is 1.87 V (1.84 to 1.90 V), and the FB voltage limit is -0.3 to 7 V. |
| 4 | CS | input | Peak current sense pin, which is left floating for the default 1.2 A limit; the CS voltage is limited to -0.3 to 7 V, with a typical peak current threshold of 0.3 V and an abnormal overcurrent threshold of 0.6 V. |
| 5 | Drain | power_in | Drain of the internal high-voltage power MOSFET, rated for a 160 V breakdown voltage with an absolute Drain pin voltage range of -0.3 to 160 V. |
| 6 | Drain | power_in | Drain of the internal high-voltage power MOSFET (pins 5 and 6 are listed together as Drain in the pin table), rated for a 160 V breakdown voltage with an absolute Drain pin voltage range of -0.3 to 160 V. |
| 8 | GND | power_in | Chip reference ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UNI SEMIC |
| Package | SOP-7 |
| Category | Power Management (PMIC) |
| Pins | 7 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| HV pin supply current (HV 脚供电电流) | IHV | 1 | 4 | mA | HV=90V, VDD=0V | 5 | |
| VDD start-up current (VDD 启动电流) | IVDD_st | 100 | 300 | uA | 无开关工作 | 5 | |
| Internal differential amplifier reference at FB (VFB_REF) | VFB_REF | 1.84 | 1.87 | 1.9 | V | 6 | |
| Drain pin voltage | -0.3 | 160 | V | 5 | |||
| VDD supply voltage | 30 | V | 5 | ||||
| VDD clamp current | 10 | mA | 5 | ||||
| FB, CS pin voltage | -0.3 | 7 | V | 5 | |||
| Maximum junction operating temperature | 160 | °C | 5 | ||||
| Storage temperature | -65 | 150 | °C | 5 | |||
| Lead temperature (soldering) | 260 | °C | 焊接 10 秒 | 5 | |||
| ESD capability (human body model) | 3 | KV | 5 | ||||
| ESD capability (machine model) | 250 | V | 5 | ||||
| Operating ambient temperature | -40 | 125 | °C | 5 | |||
| Package thermal resistance, junction to ambient (SOP-8 label) | 165 | °C/W | 5 |
CAD (KiCad official)
- Symbol:
U3213 - Footprint:
Package_SO:SOIC-8-N7_3.9x4.9mm_P1.27mm - 3D model: SOP-7 (KiCad packages3D, STEP)
- 3D model files:
u3213-etched.step/u3213-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);u3213.step/u3213.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UNI SEMIC datasheet (12 pp, sha256
eb44c21bac12aeb8, retrieved 2026-10-19, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).
# U3213
**UNI SEMIC** · Power Distribution Switches · SOP-7
U3213 from UNI SEMIC, in a SOP-7. 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 | VDD | power_in | Chip supply pin that also serves as the output voltage feedback input when FB is left floating; the datasheet recommends a 0.1uF SMD capacitor, with VDD_ON typically 7.5 V, VDD undervoltage at 4.5 V, VDD overvoltage protection at 24 V, and clamp at 26 V (30 V absolute supply maximum). |
| 2 | GND | power_in | Chip reference ground. |
| 3 | FB | input | Feedback input pin; when left floating the output defaults to 14.3 V, the internal reference is 1.87 V (1.84 to 1.90 V), and the FB voltage limit is -0.3 to 7 V. |
| 4 | CS | input | Peak current sense pin, which is left floating for the default 1.2 A limit; the CS voltage is limited to -0.3 to 7 V, with a typical peak current threshold of 0.3 V and an abnormal overcurrent threshold of 0.6 V. |
| 5 | Drain | power_in | Drain of the internal high-voltage power MOSFET, rated for a 160 V breakdown voltage with an absolute Drain pin voltage range of -0.3 to 160 V. |
| 6 | Drain | power_in | Drain of the internal high-voltage power MOSFET (pins 5 and 6 are listed together as Drain in the pin table), rated for a 160 V breakdown voltage with an absolute Drain pin voltage range of -0.3 to 160 V. |
| 8 | GND | power_in | Chip reference ground. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UNI SEMIC |
| Package | SOP-7 |
| Category | Power Management (PMIC) |
| Pins | 7 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| HV pin supply current (HV 脚供电电流) | IHV | 1 | 4 | | mA | HV=90V, VDD=0V | 5 |
| VDD start-up current (VDD 启动电流) | IVDD_st | | 100 | 300 | uA | 无开关工作 | 5 |
| Internal differential amplifier reference at FB (VFB_REF) | VFB_REF | 1.84 | 1.87 | 1.9 | V | | 6 |
| Drain pin voltage | | -0.3 | | 160 | V | | 5 |
| VDD supply voltage | | | | 30 | V | | 5 |
| VDD clamp current | | | | 10 | mA | | 5 |
| FB, CS pin voltage | | -0.3 | | 7 | V | | 5 |
| Maximum junction operating temperature | | | | 160 | °C | | 5 |
| Storage temperature | | -65 | | 150 | °C | | 5 |
| Lead temperature (soldering) | | | | 260 | °C | 焊接 10 秒 | 5 |
| ESD capability (human body model) | | | | 3 | KV | | 5 |
| ESD capability (machine model) | | | | 250 | V | | 5 |
| Operating ambient temperature | | -40 | | 125 | °C | | 5 |
| Package thermal resistance, junction to ambient (SOP-8 label) | | | | 165 | °C/W | | 5 |
## CAD (KiCad official)
- Symbol: `U3213`
- Footprint: `Package_SO:SOIC-8-N7_3.9x4.9mm_P1.27mm`
- 3D model: SOP-7 (KiCad packages3D, STEP)
- 3D model files: `u3213-etched.step` / `u3213-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `u3213.step` / `u3213.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [UNI SEMIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756597136849293312) (12 pp, sha256 `eb44c21bac12aeb8`, retrieved 2026-10-19, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/u3213-datasheet.pdf)