DC/DC 5-25V to 0.5-25V Auto Boost & Buck Adjustable Power Supply

LM2577 Step Up/Down Module

    Input voltage: 5-25V
    Output voltage: 0.5V-25V
    Input current:3A(MAX) For continous use 2A.
    Output current: 3A(MAX) For continous use 2A
    In/Out power:30W(MAX)
    Size:48x26x13 (length*width*height)(mm)
    Weight:12g
    In+: Input positive
    In-: Input negative
    Out+: Output positive
    Out-: Output negative

Note:
This module don't have reverse protection, if you connect reverse ploatity, it will not be protected. Please pay attention when connecting
When the output shorted, the output will be automatically shut down.

When the module starts or the load is off, it will appear that the output voltage will be more than the preset voltage. So the module is not suitable for the device which are sensitive to voltage.

The common voltage data test:
Boost efficiency:
5.0V to 12V/1A efficiency 86.3%
7.4V to 12V/1A efficiency 88.7%
12V to 18V/1A efficiency 88.3%
18V to 24V/1A efficiency 87.3%
Buck efficiency:
5V to 3.3V/3A efficiency 74.2%
12V to 5V/3A efficiency 83.8%
24V to 12V/2A efficiency 86.4%
24V to 18V/2A efficiency 87.6%
Boost and Buck efficiency
12V to 12V/3A efficiency 87.4%
5V to 5V/2A efficiency 81.4%