DC-DC Adjustable Step up/down Power Supply Module 5-25V Voltage display boost and buck converter LM2596&LM2577 DC Converter

NOTE: This module is step-up and step-down converter and have voltage display.  The performance is more than LM2596 and LM2577.

Data Indicators:

• In+:                                                        Input positive
• In-:                                        Input negative
• Out+:                                    Output positive
• Out-:                                                      Output negative
• Size:                                          47x41x16 (length*width*height)(mm) 
• Weight:                                       23g
• Display Color                              green
• Input voltage:                            5.0-25.0V
• LED Indicator :                              YES
• Output voltage:                          0.5-25V(Adjustable) 
• IN/OUT Power :                         25W(MAX)
• Input current:                            Rated current MAX 2A 
• Output current:                         Rated current MAX 2A
• S1 :                                            Choose and remeber the work sate
• OFF/ON:                                                Control the output state

Features:

• Input and output voltage can display alternately
• The starting state can be set freely.
• This modlue has the function of controling the start-up and shutdown by the button. So it can control easily the state of output 
• This module have the big power MOS to protect the circuite in case of connecting reversely. This can improve the effiency and reliablity.

Working state instruction.

• Input voltage mode: Boot default display the Input voltage mode, show **.*, the LED indicator light on and output state shut down

• Output voltage mode: Pess S1, the module switch to output voltage mode. show **.**, the LED indicator light off. If the output state shut down, it show "OFF".
• Alternating mode: Press button again input/output voltage alternately display (3s). Press button again, switch to intput voltage display.  

Memory mode : keeping press S1 more than 2s, the current mode is memorying for default boot state. 

• [0] reresents the default boot show input voltage 
• [1] reresents the default boot show output voltage
• [2] reresents the default boot show alternately input or output voltage

The common voltage data test:(shut down the digital tube to 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%