Mini DC-DC Buck Converter Step Down Module Description 1. Module Properties: non-isolated step-up module (BOOST) 2. Input voltage: 1-5V 3. Output voltage: 5.1~5.2V 4. Output Current: Rated 1A~1.5A (Single lithium battery input) 5. Conversion efficiency: up to 96% ( input voltage, the higher the efficiency ) 6. Switching Frequency: 500KHz 7. Output ripple: 30mV (Max) 20M Bandwidth ( Input 4V, Output 5.1V 1A) 8. Voltage indication: LED lights with a load (input voltage is lower than 2.7V LED indicator off ) 9. Operating temperature: Industrial grade (-40 Celsius to +85 Celsius ) 10. Full load temperature rise: 30 Celsius 11. Quiescent Current: 130uA 12. Load regulation: ± 1% 13. Voltage regulation: ± 0.5% 14. Dynamic response speed: 5% 200uS 15. Short circuit protection: None 16.Input Reverse Polarity Protection: None 17.Wiring: Welding