# Bold Green Carbonite Freezer
## Description
Welcome to your new project. Imagine what you can build here.
## Project Details
- **Owner:** randylbl
- **Created:** 9/22/2025
- **Last Updated:** 9/23/2025
- **Visibility:** Public
## Key Components
### D1 — [MURA140T3G](https://www.flux.ai/lcsc/mura140t3g~kww6.md)
- Manufacturer Name: onsemi(安森美)
- LCSC Part Number: C111833
- Part Type: Diodes - Fast Recovery Rectifiers
- Manufacturer Part Number: MURA140T3G
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010301_onsemi-MURA140T3G_C111833.pdf
- Product Info Url: https://lcsc.com/product-detail/Diodes-General-Purpose_ON_MURA140T3G_MURA140T3G_C111833.html
- Package or Case Code: SMA_L4.4-W2.8-LS5.4-RD
- JLCPCB Part Class: Extended Part
**Pins:**
- A [pin 2]
- K [pin 1]
### Q1 — [BSS138K](https://www.flux.ai/lcsc/bss138k~mgdb.md)
- Part Type: MOSFETs
- JLCPCB Part Class: Extended Part
- LCSC Part Number: C255592
- Package or Case Code: SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BR
- Manufacturer Name: onsemi(安森美)
- Manufacturer Part Number: BSS138K
- Datasheet URL: https://lcsc.com/product-detail/Others_ON-Semicon-ON-BSS138K_C255592.html
- Product Info Url: https://lcsc.com/product-detail/Others_ON-Semicon-ON-BSS138K_C255592.html
**Pins:**
- D [pin 3]
- G [pin 1]
- S [pin 2]
### T1 — Step Up Transformer
- Primary Inductance: 400 uH
- Ratio: 10
- Coupling Coefficient: 0.99
**Pins:**
- P1
- P2
- S1
- S2
### U1 — [LT3757IMSE#TRPBF](https://www.flux.ai/lcsc/lt3757imsetrpbf~3gxd.md)
- Package or Case Code: MSOP-10_L3.0-W3.0-P0.50-LS5.0-BL-EP
- Manufacturer Name: ADI(亚德诺)
- Product Info Url: https://lcsc.com/product-detail/Pre-ordered-Products_Analog-Devices_LT3757IMSE-TRPBF_Analog-Devices-ADI-LINEAR-LT3757IMSE-TRPBF_C671481.html
- Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2304140030_Analog-Devices-LT3757IMSE-TRPBF_C671481.pdf
- LCSC Part Number: C671481
- JLCPCB Part Class: Extended Part
- Part Type: DC-DC Controllers
- Manufacturer Part Number: LT3757IMSE#TRPBF
**Pins:**
- ~{SHDN}/UVLO [pin 9]
- EP [pin 11]
- FBX [pin 2]
- GATE [pin 7]
- INTVCC [pin 8]
- RT [pin 4]
- SENSE [pin 6]
- SS [pin 3]
- SYNC [pin 5]
- VC [pin 1]
- VIN [pin 10]
### V1 — [DC Supply](https://www.flux.ai/jharwinbarrozo/dc-supply~35.md)
- Voltage: 3V
**Pins:**
- ANODE
- CATHODE
*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/randylbl/bold-green-carbonite-freezer~2e](https://www.flux.ai/randylbl/bold-green-carbonite-freezer~2e).*
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*Generated from [https://www.flux.ai/randylbl/bold-green-carbonite-freezer~2e](https://www.flux.ai/randylbl/bold-green-carbonite-freezer~2e)*