DC/DC Converter: what this category covers
A DC/DC converter turns one DC voltage into another regulated one, and some types also separate input from output. This category covers non-isolated buck, boost and boost-buck modules, plus isolated converters for instrumentation. Inputs are normally drawn from 12V, 24V, 36V, 48V and 72V batteries or vehicle systems; typical outputs are 5V, 12V, 13.8V, 19V, 24V and 48V. If your supply comes from AC mains, these modules are not the right fit, and our AC/DC power supply range covers those instead.
Which converter architecture fits your project
Battery bank step-down. Dropping 36V, 48V or 72V to a usable 12V or 13.8V rail is the normal job of a non-isolated buck DC/DC converter. Efficiency stays highest while the input remains above the output, so this is the standard route for powering electronics from a higher-voltage vehicle battery.
12V rail step-up. To drive 19V, 24V or 48V radios, pumps and accessories from a 12V source, specify a non-isolated boost DC/DC converter. A boost stage keeps the load on one supply instead of adding a second battery.
Overlapping input and output range. A vehicle battery may sit anywhere between 9V and 40V while the output has to hold at 24V. A non-isolated boost-buck converter regulates in both directions, so no manual switching between modes is needed.
Isolated input and output. Signal chains, sensors and instrumentation need an isolated type DC/DC converter, which breaks the electrical connection between the two sides and holds the isolation barrier at its rated voltage.
Key parameters to verify
The real input voltage window, not only the nominal rating. A 12V alternator system can swing from 9V to 16V, and a 48V battery pack reads higher while charging.
Continuous current draw against the peak current your load needs at start-up, especially with motors and other inductive loads.
Whether galvanic isolation is required, or whether input and output may share a common ground.
Ambient temperature where the unit is mounted, which sets the thermal derating and the usable output current.
Ingress protection and terminal style, for example IP67 or IP68 with cable or bolt connections.
Electrical noise limits and the protection functions your downstream load demands, such as over-voltage, over-current and reverse-polarity protection.
Further reading and enquiries
For stabilizing vehicle power, review the 12V/24V to 5V waterproof buck converter. Grounding and isolation are covered in DC/DC converter input range and isolation, and heavy-duty applications in DC/DC converter selection for vehicles and forklifts.
Send the input voltage window, the output voltage and current, the isolation requirement, the ambient temperature inside your cabinet, your preferred mounting style and your target quantity. Our engineering team will confirm the matching model and the lead time.
