SG3843DM
IC REG CTRLR BUCK 8SOICManufacturer: Microsemi Corporation
Categories: DC DC Switching Controllers
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The Microsemi Corporation SG3843DM is a high-performance, fixed-frequency current-mode PWM controller designed for efficient step-down (buck) DC-DC converter applications. This device features a wide operating voltage range of 7.6V to 30V, making it suitable for various power supply designs. The SG3843DM supports switching frequencies from 1Hz up to 500kHz, offering flexibility in component selection for optimized power density and efficiency. It includes a transistor driver output for controlling external power switches, with a maximum duty cycle of 95% ensuring robust performance. The controller is packaged in an 8-SOIC (0.154" width) surface-mount configuration, ideal for space-constrained designs. Applications include power supplies for industrial automation, consumer electronics, and lighting systems.
Additional Information
Series: -RoHS Status: RoHS CompliantManufacturer Lead Time: No lead time information availableProduct Status: DiscontinuedPackaging: BulkDatasheet:Download Free CAD Model:
Technical Details:
| Packaging | Bulk |
| Package / Case | 8-SOIC (0.154"", 3.90mm Width) |
| Output Type | Transistor Driver |
| Mounting Type | Surface Mount |
| Function | Step-Down |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Output Configuration | Positive |
| Frequency - Switching | 1Hz ~ 500kHz |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) | 7.6V ~ 30V |
| Supplier Device Package | 8-SOIC |
| Synchronous Rectifier | No |
| Control Features | - |
| Serial Interfaces | - |
| Output Phases | 1 |
| Duty Cycle (Max) | 95% |
| Clock Sync | No |
| Number of Outputs | 1 |
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