PWM CONTROLLER MULTI-TOPOLOGY 8-SOIC


Bypass caps, pull-ups, strapping resistors, custom silkscreen & more
Design a Custom BoardFixed-frequency PWM controller for use in multiple topologies including buck, boost, and flyback converters. Operates at 500 kHz typical switching frequency with 5V output logic. Integrated oscillator, error amplifier, and current-sense comparator enable flexible power supply designs from 8-35V input. Suitable for industrial and consumer DC-DC conversion applications requiring compact control.
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | UC2843AD8TR |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Frequency - Switching | Up to 500kHz |
| Number of Outputs | 1 |
| Output Type | PWM |
| Topology | Boost, Buck, Flyback, Forward Converter |
BILL OF MATERIALS
PCB SPECIFICATIONS
< 0.9" (straddles breadboard)
2.54mm standard
Lead-free, reflow assembled
FR4, lead-free HASL