# UC3843BN (Component)
## Description
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-Mini DIP #CommonPartsLibrary #IntegratedCircuit #PowerManagement #DCDC #Switching-controller #UC3843
## Component Details
- **Owner:** jecstronic
- **Created:** 2/26/2024
- **Last Updated:** 2/26/2024
- **Visibility:** Public
- **Part Type:** Integrated Circuit
- **Manufacturer Part Number:** UC3843BN
- **Datasheet URL:** https://www.st.com/content/ccc/resource/technical/document/datasheet/b6/e8/cc/ba/4f/cd/42/9b/CD00000966.pdf/files/CD00000966.pdf/jcr:content/translations/en.CD00000966.pdf
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Manufacturer Name:** STMicroelectronics
- **Used in:** 13 projects
- **Stars:** 1
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/uc3843bn/stmicroelectronics.html?utm_currency=USD®ion=europe) | $0.9435 | 3.3K |
| [Digi-Key](https://www.digikey.com/en/products/detail/stmicroelectronics/UC3843BN/1665279) | $0.83 | 1.7K |
| [LCSC](https://www.lcsc.com/product-detail/old-batch_stmicroelectronics-uc3843bn_C22361700.html) | $0.3443 | 0 |
| [Mouser](https://www.mouser.com/en/ProductDetail/onsemi/UC3843BN?qs=xZq1yRCsb1d47tIN5zI4qw%3D%3D) | $1.00 | 3.6K |
| [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=UC3843BN) | $1.26 | 50 |
| [Verical](https://www.verical.com/pd/stmicroelectronics-pwm-controller-UC3843BN-66041?utm_currency=USD) | N/A | N/A |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** STMicroelectronics
- **MPN:** UC3843BN
- **Package / Case Code:** 8-DIP
- **Pin Count:** 8
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | COMP | |
| 2 | VFB | |
| 3 | ISENSE | |
| 4 | RT/CT | |
| 5 | GROUND | |
| 6 | OUTPUT | |
| 7 | VI | |
| 8 | VREF | |
---
*Generated from [https://www.flux.ai/jecstronic/uc3843bn~3d7](https://www.flux.ai/jecstronic/uc3843bn~3d7)*