component
SM7055-12
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Shenzhen Sunmoon Micro AC-DC Controllers & Regulators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SM7055-12
Shenzhen Sunmoon Micro · AC-DC Controllers & Regulators · DIP-8
SM7055-12 from Shenzhen Sunmoon Micro, in a DIP-8. 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 | GND | power_in | Chip ground; connect to PCB copper for heat dissipation (RthJA 45 °C/W with 200 mm² copper on all GND pins). |
| 2 | NC | unconnected | No-connect (floating) pin. |
| 3 | NC | unconnected | No-connect (floating) pin. |
| 4 | HVDD | power_in | Chip supply pin, abs max -0.3 to 20 V with 10 mA clamp current, turn-on 11.5 V and turn-off 8 V (3.5 V hysteresis) per electrical table. |
| 5 | DRAIN | passive | Drain of the built-in 730 V high-voltage MOSFET (-0.3 to 730 V), also used as the chip start-up pin; tied with pins 6, 7, 8. |
| 6 | DRAIN | passive | Drain of the built-in 730 V high-voltage MOSFET (-0.3 to 730 V), also used as the chip start-up pin; tied with pins 5, 7, 8. |
| 7 | DRAIN | passive | Drain of the built-in 730 V high-voltage MOSFET (-0.3 to 730 V), also used as the chip start-up pin; tied with pins 5, 6, 8. |
| 8 | DRAIN | passive | Drain of the built-in 730 V high-voltage MOSFET (-0.3 to 730 V), also used as the chip start-up pin; tied with pins 5, 6, 7. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Sunmoon Micro |
| Package | DIP-8 |
| Category | Power Management ICs |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain pin max withstand voltage | VDS(max) | -0.3 | 730 | V | TA=25℃ | 3 | |
| Drain pin max voltage at startup | VDS(ST) | -0.3 | 730 | V | TA=25℃ | 3 | |
| Chip supply voltage | HVDD | -0.3 | 20 | V | TA=25℃ | 3 | |
| Clamp current | IHVDD | 10 | mA | TA=25℃ | 3 | ||
| ESD voltage | VESD | 2000 | V | TA=25℃ | 3 | ||
| Junction temperature | TJ | -40 | 150 | ℃ | TA=25℃ | 3 | |
| Storage temperature | TSTG | -55 | 150 | ℃ | TA=25℃ | 3 | |
| Thermal resistance | RthJA | 45 | ℃/W | PCB with 200mm2 copper, 35um thick, connected to all GND pins | 3 | ||
| Drain-source breakdown voltage | BVDS | 730 | V | 3 | |||
| DRAIN off-state leakage current | IDSS | 0.1 | mA | 3 | |||
| On-resistance | RDS(on) | 22 | Ohm | ID=0.2A | 3 | ||
| HVDD turn-on voltage | HVDDON | 11.5 | V | 3 | |||
| HVDD turn-off voltage | HVDDOFF | 8 | V | 3 | |||
| HVDD hysteresis voltage | HVDDHYS | 3.5 | V | 3 | |||
| HVDD operating current | IDD2 | 0.5 | mA | HVDD=11V | 3 | ||
| Charging current | IDDCH | -500 | uA | VDS=100V; HVDD=5V | 3 | ||
| Oscillation frequency | FOSC | 60 | KHz | 3 | |||
| Frequency jitter range | △Fosc | 4 | % | 3 | |||
| Over-temperature protection temperature | TOVT | 150 | ℃ | 3 |
CAD (KiCad official)
- Symbol:
SM7055-12 - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
sm7055-12-etched.step/sm7055-12-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sm7055-12.step/sm7055-12.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen Sunmoon Micro datasheet (9 pp, sha256
d75b5ecb3e053ec8, retrieved 2026-10-27, 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-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).
# SM7055-12
**Shenzhen Sunmoon Micro** · AC-DC Controllers & Regulators · DIP-8
SM7055-12 from Shenzhen Sunmoon Micro, in a DIP-8. 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 | GND | power_in | Chip ground; connect to PCB copper for heat dissipation (RthJA 45 °C/W with 200 mm² copper on all GND pins). |
| 2 | NC | unconnected | No-connect (floating) pin. |
| 3 | NC | unconnected | No-connect (floating) pin. |
| 4 | HVDD | power_in | Chip supply pin, abs max -0.3 to 20 V with 10 mA clamp current, turn-on 11.5 V and turn-off 8 V (3.5 V hysteresis) per electrical table. |
| 5 | DRAIN | passive | Drain of the built-in 730 V high-voltage MOSFET (-0.3 to 730 V), also used as the chip start-up pin; tied with pins 6, 7, 8. |
| 6 | DRAIN | passive | Drain of the built-in 730 V high-voltage MOSFET (-0.3 to 730 V), also used as the chip start-up pin; tied with pins 5, 7, 8. |
| 7 | DRAIN | passive | Drain of the built-in 730 V high-voltage MOSFET (-0.3 to 730 V), also used as the chip start-up pin; tied with pins 5, 6, 8. |
| 8 | DRAIN | passive | Drain of the built-in 730 V high-voltage MOSFET (-0.3 to 730 V), also used as the chip start-up pin; tied with pins 5, 6, 7. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Sunmoon Micro |
| Package | DIP-8 |
| Category | Power Management ICs |
| Pins | 8 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain pin max withstand voltage | VDS(max) | -0.3 | | 730 | V | TA=25℃ | 3 |
| Drain pin max voltage at startup | VDS(ST) | -0.3 | | 730 | V | TA=25℃ | 3 |
| Chip supply voltage | HVDD | -0.3 | | 20 | V | TA=25℃ | 3 |
| Clamp current | IHVDD | | | 10 | mA | TA=25℃ | 3 |
| ESD voltage | VESD | | | 2000 | V | TA=25℃ | 3 |
| Junction temperature | TJ | -40 | | 150 | ℃ | TA=25℃ | 3 |
| Storage temperature | TSTG | -55 | | 150 | ℃ | TA=25℃ | 3 |
| Thermal resistance | RthJA | | | 45 | ℃/W | PCB with 200mm2 copper, 35um thick, connected to all GND pins | 3 |
| Drain-source breakdown voltage | BVDS | 730 | | | V | | 3 |
| DRAIN off-state leakage current | IDSS | | | 0.1 | mA | | 3 |
| On-resistance | RDS(on) | | 22 | | Ohm | ID=0.2A | 3 |
| HVDD turn-on voltage | HVDDON | | 11.5 | | V | | 3 |
| HVDD turn-off voltage | HVDDOFF | | 8 | | V | | 3 |
| HVDD hysteresis voltage | HVDDHYS | | 3.5 | | V | | 3 |
| HVDD operating current | IDD2 | | 0.5 | | mA | HVDD=11V | 3 |
| Charging current | IDDCH | | -500 | | uA | VDS=100V; HVDD=5V | 3 |
| Oscillation frequency | FOSC | | 60 | | KHz | | 3 |
| Frequency jitter range | △Fosc | | 4 | | % | | 3 |
| Over-temperature protection temperature | TOVT | | 150 | | ℃ | | 3 |
## CAD (KiCad official)
- Symbol: `SM7055-12`
- Footprint: `Package_DIP:DIP-8_W7.62mm`
- 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files: `sm7055-12-etched.step` / `sm7055-12-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sm7055-12.step` / `sm7055-12.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Shenzhen Sunmoon Micro datasheet](docs/sm7055-12-datasheet.pdf) (9 pp, sha256 `d75b5ecb3e053ec8`, retrieved 2026-10-27, 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-sonnet-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/sm7055-12-datasheet.pdf)