Mini DC-DC 12-24V To 5V 3A Adjustable Step Down Module Buck Converter 97.5%

http://www.icstation.com/3w3w-wireless-bluetooth-audio-receiver-digital-amplifier-module-p-9295.html

Product Introduction:
1.Input Voltage:DC 4.5-24V
2.Output Voltage:integration adjustable and fixed output,back side can choose fiexd output voltage
3.Adjustable Range:0.8-17V,fixed voltage （1.8V 2.5V 3.3V 5V 9V 12V）
4.Output Current:3A (max),actual testing input 12V output 1.5A
5.Transform Efficiency:97.5%(max)（6.5 to 5V 0.7A）
6.Switch Frequency:500KHz
7.Output Ripple Wave:20mV (12V to 5V 3A) 20m band width
8.Operating Voltage:-40℃～85℃
9.Output Overvoltage Protection:no
10.Static Current:0.85MA
11.Load Adjust Rate:±1%
12.Voltage Adjust Rate:±0.5%
13.Dynamic Response Speed:5% 200uS
14.Output Short Circuit Protection:yes
15.Input Transposition Protection:no
16.Enable Control:yes
17.Connecting Type:soldering
18.Input Way:soldering
19.Output Way:soldering/pin
20.Soldering Hole Space:2.54mm