Input: 5.5V - 26V (2 - 6LiPo)
Output: 5V/3A - 6V/3A
Dim: 41,6 x 16,6 x 7mm
Vikt: 11g




Output: 5V/3A and 6V/3A (Changeable with an jumper)
Ripple: <50mVp-p(@2A/12V)
Input: 5.5V-26V (2 to 6 cells Lipo battery pack, 5-18 cells NiMH battery pack)
Size: 41.6mm*16.6mm*7.0mm (length*width*height)
Weight: 11g

The UBEC is an advanced switching regulator, provides over-current and over-heat
protection function, and the maximum efficiency of the system is nearly 90%
The smallsize and the light weight make it vbery convenient to use.
The comparison of linear BEC and 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 output 5V/1A, the current flow
into the 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 the linear
mode BEC is just 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 output 5V/1A,
the current flow into BEC is only 0.38A (actual test data), so the power on
BEC is 14.8V* 0.38A =5.6W, and the efficiency of BEC is 5W/5.6W=89.3%.

Don’t worry about the polarity of battery pack. If the polarity is not correct, the UBEC
can’t work, but it will not be destroyed. What you need to do is just swap the battery
pack polarity.

A shield covers almost all the electronic components on PCB, and a ferrite ring is
attached with the output wires to decrease the electromagnetic interference.