- legacy wiki page - https://w.electrodragon.com/w/Category:DC-DC_Buck
Features:
- Model Name LM2596S DC-DC step-down module
- Input voltage 3.2V~46V (recommended to be used within 40V)
- The output voltage 1.25V~35V Output current 3A (not more than)
- Conversion efficiency 92% (not more than)
- Output ripple <30mV
- On-off level 65KHz
- Operating temperature -45℃~ +85℃
- Size 43mm * 21mm * 14mm (length * width * height)
output voltage tuning
factory tuning output volatge around 20V each counter clock tuning = 1V
Pin Definitions
- IN+ input positive pole
- IN-input negative pole!
- OUT+ output positive pole
- OUT-output negative pole
output and input
Input voltage range: DC 3.2V to 46V
It is recommended to use within 40V! (The input voltage must be more than 1.5V higher than the output voltage. It cannot be boosted)
Output voltage range: DC 1.25V to 35V, continuously adjustable voltage, high efficiency (maximum 92%)
The maximum output current is 3A.
The actual measured load regulation rate at 12V input and 5V output current is less than 1% when the current is 1A.
Note:
- This is a buck module, the input voltage must be higher than the output voltage.
- If the output is below 2A, you don’t need to add a heat sink for a long time.
- If the output current is greater than 2.5A (or the output power is greater than 10W), please add a heat sink when working for a long time.
Dimension
Applications Examples
- output running Tungsten