UMW UC3843B
MPNUC3843B
Active
SOP-8 AC-DC CONTROLLERS & REGULA
$0.6300Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Voltage - start up | 8.4 V |
| Voltage - supply (Vcc (Vdd)) | 7.6V ~ 30V |
| Frequency | 50kHz, 52kHz |
| Duty cycle | 97% |
| Operating temperature | 0°C~70°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Topology | Boost, Flyback |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Control features | Frequency Control, Soft Start |
| Fault protection | Current Limiting, UVLO |
| Output isolation | Non-Isolated |
| Internal switch | Yes |