Rochester Electronics, LLC14-SOIC (0.209", 5.30mm Width)RoHS
UC3842D
UC3842 CURRENT-MODE PWM CONTROLL
Category
Subcategory
Pmic Voltage Regulators Dc Dc Switching Controllers
Package
14-SOIC (0.209", 5.30mm Width)
Status
Active
Datasheet
$0.65 / unit (market reference)
MOQ: 461 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
✅ 365-Day Warranty🚚 Global Shipping
Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | UC3842D |
| Package / Case | 14-SOIC (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Topology | Boost, Flyback |
| Frequency - Switching | Up to 500kHz |
| Number of Outputs | 1 |
| Supplier Device Package | 14-SOP |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
UC3842D by Rochester Electronics, LLC is a Boost, Flyback IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to N/A, output adjustable. The 14-SOIC (0.209", 5.30mm Width) package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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All Technical Specifications
| Function | Step-Up, Step-Up/Step-Down |
| Topology | Boost, Flyback |
| Clock Sync | No |
| Output Type | Transistor Driver |
| Output Phases | 1 |
| Control Features | Frequency Control |
| Duty Cycle (Max) | 97% |
| Number of Outputs | 1 |
| Output Configuration | Positive, Isolation Capable |
| Frequency - Switching | Up to 500kHz |
| Synchronous Rectifier | No |
| Voltage - Supply (Vcc/Vdd) | 10V ~ 30V |
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