STMicroelectronics UC3843BD1 DC DC Switching Controllers
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3843BD1
Base Model
Detailed Description
IC REG CTRLR BOOST/FLYBACK 8SO
Package
8-SOIC (0.154", 3.90mm Width)
Key Features
Package: 8-SOIC (0.154", 3.90mm Width)
Lifecycle Status
Active
Datasheet
UC3843BD1 Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics UC3843BD1 DC DC Switching Controllers technical specifications.
General
RoHS
Yes
Package / Case
8-SOIC
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C (TJ)
Supply Voltage
7.6V ~ 30V
Lifecycle Status
Active
Package
8-SOIC (0.154", 3.90mm Width)
Output Type
Transistor Driver
Switching Frequency
Up to 500kHz
Number of Outputs
1
Related Parts Comparison (UC3843BD1 vs UC3843BD1013TR vs UC2843BD1013TR vs UC3842BD1)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TJ) | 0°C ~ 70°C (TJ) | -25°C ~ 85°C (TA) | 0°C ~ 70°C (TJ) |
| Supply Voltage | 7.6V ~ 30V | 7.6V ~ 30V | 7.6V ~ 30V | 10V ~ 30V |
| Switching Frequency | Up to 500kHz | Up to 500kHz | Up to 500kHz | Up to 500kHz |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Active |
| Clock Sync | No | No | No | No |
| Control Features | Frequency Control | Frequency Control | Frequency Control | Frequency Control |
| Duty Cycle Max | 96% | 96% | 96% | 96% |
| Function | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down |
| Grade | Industrial | Industrial | Industrial | Industrial |
| Action |
More Parts in DC DC Switching Controllers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
UC2843BD1013TRSTMicroelectronicsBoost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC
UC3842BD1STMicroelectronicsBoost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC
UC2842BD1013TRSTMicroelectronicsBoost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC