LM2577 Automatic Boost / step-up and step-down (Buck) Module

The following is the maximum output current tested, leaving the margin.

Input 4.2V Output 12V Output Maximum Current 0.5A

Input 5.0V Output 12V Output Maximum Current 0.6A

Input 8.2V Output 12V Output Maximum Current 1A

Input 10V output 12V output maximum current 1.2A

Input 12V output 12V output maximum current 1.3A

Input 14V Output 12V Output Maximum Current 1.5A

Input 24V Output 12V Output Maximum Current 1.7A

Input 30V output 12V output maximum current 1.8A

 

The following is the actual measurement of the voltage and current efficiency of reference (for reference only)

 

Conversion efficiency:

 

Input 3.7V Output 5V 0.55A Efficiency 75%

Input 5V Output 5V 0.7A Efficiency 78%

Input 7.4V Output 5V 1.2A Efficiency 80%

Input 12V Output 5V 1.5A Efficiency 80%

Input 24V Output 5V 1.8A Efficiency 80%

Input 30V Output 5V 2A Efficiency 76%

Input 10V Output 12V 1A Efficiency 81%

Input 14V Output 12V 1A Efficiency 83%

Input 24V Output 12V 1A Efficiency 83%

Input 24V Output 12V 2A Efficiency 84%

 

Operating temperature:

Industrial grade (-40 ℃ to +85 ℃) (ambient temperature of more than 40 degrees, please reduce the power to use, or strengthen the heat)

 

Full load temperature rise: 45 ℃

No-load current: 10mA typical (10-14V to 12V)

 

Load regulation: ± 1 %

 

Voltage regulation: ± 0.5%

 

Dynamic response speed: 5% 200uS

 

Short circuit protection: None (Please input fuse or protective circuit at input)

 

Application scope

1) . Battery regulator , you can bar 12V battery (10-14V) output regulator at 12V, 24V battery output regulator at 24V.

2 ) . Solar charging regulator, you can stabilize the solar cell fluctuation voltage, and can charge the battery to avoid battery overshoot .

3 ) . For your electronic equipment power supply , wide voltage step-down design to the wide voltage range.

4 ) . The system front power supply , wide pressure step-down design to the wide voltage range.