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| ![](data:image/svg+xml,%3csvg%20xmlns=%27http://www.w3.org/2000/svg%27%20version=%271.1%27%20width=%2769%27%20height=%2770%27/%3e) ![UC3842B UC3842B](/_next/image?url=https%3A%2F%2Foss.origin-ic.net%2FproductThumbImages%2FMFG_UC3842B_tmb.jpg&w=256&q=75) | SOP-8 AC-DC CONTROLLERS & REGULA | | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | 0°C ~ 70°C (TA) | - | 8-SOIC (0.154", 3.90mm Width) | 8-SOP | PWM | - | - | - | Boost, Flyback | - | Up to 500kHz | - | 10V ~ 30V | - | 50% | - | Frequency Control, Soft Start | - |
| ![](data:image/svg+xml,%3csvg%20xmlns=%27http://www.w3.org/2000/svg%27%20version=%271.1%27%20width=%2769%27%20height=%2770%27/%3e) ![UC3845B UC3845B](/_next/image?url=https%3A%2F%2Foss.origin-ic.net%2FproductThumbImages%2FMFG_UC3845B_tmb.jpg&w=256&q=75) | SOP-8 AC-DC CONTROLLERS & REGULA | | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | 0°C ~ 70°C (TA) | - | 8-SOIC (0.154", 3.90mm Width) | 8-SOP | PWM | - | - | - | Boost, Flyback | - | Up to 500kHz | - | 7.6V ~ 30V | - | 50% | - | Frequency Control, Soft Start | - |
| ![](data:image/svg+xml,%3csvg%20xmlns=%27http://www.w3.org/2000/svg%27%20version=%271.1%27%20width=%2769%27%20height=%2770%27/%3e) ![UC3843B UC3843B](/_next/image?url=https%3A%2F%2Foss.origin-ic.net%2FproductThumbImages%2FMFG_UC3843B_tmb.jpg&w=256&q=75) | SOP-8 AC-DC CONTROLLERS & REGULA | | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | 0°C ~ 70°C (TA) | - | 8-SOIC (0.154", 3.90mm Width) | 8-SOP | PWM | - | - | - | Boost, Flyback | - | Up to 500kHz | - | 7.6V ~ 30V | - | 50% | - | Frequency Control, Soft Start | - |