This non-isolated synchronous DC-DC converter accepts a varying DC input and provides an adjustable regulated output. Its automatic buck-boost design is useful when the source voltage may move above or below the required output voltage.
Key Functions
- Automatic step-up and step-down voltage conversion.
- Adjustable constant-voltage and current-limit controls.
- Two heatsinks support heat dissipation under load.
- Current limiting, short-circuit protection, and thermal protection are listed for the module.
- Output reverse-current protection is included; input reverse-polarity protection is not included.
Electrical Specifications
- Input voltage: DC 5-30V.
- Output voltage: DC 1.25-30V, continuously adjustable.
- Module rating: 100W / 8A as marked on the product.
- Operating frequency: approximately 150kHz.
- Conversion efficiency: typically about 91%, up to 93% under listed test conditions.
- Board dimensions: approximately 60 x 53 x 22mm.
Adjustment and Use
Set the output voltage with the CV control before connecting the load. Use the CC control to set the required current limit. Continuous current capability depends on input/output voltage difference, ambient temperature, airflow, and heatsink temperature, so derating or added cooling may be required for sustained high-load operation.
Typical uses include battery-powered equipment, regulated vehicle or solar supplies, LED current control, and adjustable bench or project power conversion. Observe the IN and OUT terminal markings and verify polarity before power-up.
Package Contents
- 1 x DC-DC buck-boost converter module.
Product Detail Images
