***This UBEC is an advanced switching regulator, provides over-current and over-heat protection function, and the witching frequency
is 300KHz.The max efficiency of this chip is 92%
***The smallest size and the lightest weight.
***Compare linear BEC with switch-mode BEC: When using a lithium battery pack more than 3s, a switch-mode BEC has much higher
efficiency than linear BEC.
***For a traditional linear BEC: For example,a 4s lithium battery pack has a typical voltage of 14.8V, in order to let BEC outputs
5V/1A, the current flow into BEC is at least 1A, so the power on BEC is 14.8V* 1A=14.8W. But the useful output power is only
5V*1A=5W, so the efficiency of BEC is 5W/14.8W=33.8%, the redundant power 14.8W-5W=9.8W changes to heat, which makes
the BEC very hot.
*** For a switch-mode BEC: In the above case, in order to let BEC outputs 5V/1A, the current flow into BEC is only 0.38A (actual test
data), so the power on BEC is 14.8V* 0.38V=5.6W, and the efficiency of BEC is 5W/5.6=89.3%

Specs:
Output: 5V/3A and 6V/3A switchable
Input: 5.5V-23V (2-5s lithium battery pack, 5-15cells NiMh / NiCd battery pack)
Weight: 6.5g(input and output cables not included); 10g(cables included)