1  Specifications

1.1 Output capacity : 5V/3A
1.2 Power input :5.5-23V (2-5 series lithium battery pack or 5-15 NiMH / NiCd battery pack)

1.3 Size : 43mm * 17mm * 7mm (L * W * H)

1.4 Weight : 11g

1.5 Ripple: less than 50mVp-p (in 2A/12V case)

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2  Features

2.1 The use of switching power supply structure, design, switching power supply control chip frequency is 300KHz, both over-current and over temperature protection, the chip efficiency up to 92%;
2.2 The minimum size, light weight;

2.3 shield electronic devices to be protected, the output line with a ring, which greatly reduces electromagnetic interference and receiver work

2.4 has the power to prevent reverse polarity protection feature , if you accidentally reverse power, will not cause damage UBEC

Comparison of the traditional advantages of BEC:
    Switching power mode BEC and the BEC using a linear regulator compared to the advantages mainly in: When using the 3 series (11.1V) or more batteries, can significantly reduce the BEC fever, and improve overall efficiency.
    For example: When using 4 string lithium, the normal use of the voltage is about 14.8V.

¡´ Communication with a linear regulator by way of current to the output 5V/1A power supply side must also be input 1A of current. So there will be 14.8V ¡Ñ 1A = 14.8W of power consumption on the BEC, however, the actual useful output BEC only 5V ¡Ñ 1A = 5W, so the overall efficiency of only 5/14.8 = 33.8%, while power consumption is 9.8W into heat, so overheating will lead to BEC, the chip can not enter the protected work;

¡´ use of switching power supply means, to output 5V/1A the current, we actually test showed that the power supply terminal can simply enter the current 0.38A, ie 14.8V ¡Ñ 0.38A = 5.6W of power