DC-DC step-down voltage regulator 300W, up to 20A, 6-40V to 1.2-36V (SZBK07 compatible)

High-performance DC-DC step-down voltage regulator

This module enables the efficient step-down conversion of an input voltage of 6-40V to an adjustable output voltage of 1.2-36V. It is suitable for applications with higher power requirements such as motor controls, LED supply or laboratory power supplies.

The module is based on a common layout from the SZBK07 series or compatible designs.

Overview:

• Input voltage: 6-40V DC
• Output voltage: 1.2-36V DC (adjustable)
• Max. Output current: up to 20A (with sufficient cooling)
• Max. Power: up to 300W (theoretical maximum value)
• Efficiency: up to ~95% (depending on load and voltage)
• Cooling: integrated passive heat sink

Pin assignment:

• VO + : output, positive
• VO - : output, negative
• + IN: input, positive
• - IN: input, negative
• CC: Regulation of the output current
• CV: Regulation of the output voltage
• EN: Enabler

Instructions /Documentation:

https://www.instructables.com/Controlling-DC-Converter-Modules/?utm_source=chatgpt.com

https://curiousscientist.tech/blog/szbk07-dcdc-buck-converter-voltage-divider

Notes on use (important)

• The specified maximum values (20A / 300W) can only be achieved under optimum conditions (active cooling required)
• We recommend significantly lower loads for continuous operation
• The module is supplied in different, technically comparable variants (e.g. different ICs or layouts)
• Slight deviations in assembly and printing are possible due to production reasons

Scope of delivery:

• 1x DC-DC step-down module - 300W, 20A, 6-40V to 1.2-36V