DC-DC Step-Up Voltage Regulator module
 
   
 
 
 

Features:
- Requires few external components
- NPN output switches maximal 3A, can stand off 65V
(Attention: load current forever not exceed 3A or load short circuit,this be likely to burn out module,Output Voltage more high, support current will more low,If it use to high load current,input current need high current)
- Wide input voltage range: 3.5V to 40V
- Range of regulation: 5 to 55 Volts Variable Output
- 52 kHz internal oscillator
- Soft-start function reduces in-rush current during start-up
- Output switch protected by current limit, under-voltage lockout, and thermal shutdown

circuit:

 
 
 
     
 
 
     
  PCB picture:  
 
 
     
     
     
     
     
  documentation:
LM2577 datasheet
 
     
     
     
EMAIL: picworld*126.com ("*"need change to "@")