# 5V 3A BEC Step-Down Voltage Regulator (POLOLU-2177)

**URL:** <https://forum.core-electronics.com.au/t/5v-3a-bec-step-down-voltage-regulator-pololu-2177/6118>\
**Category:** Pololu\
**Created:** [17 August 2019 04:40 UTC](https://forum.core-electronics.com.au/t/5v-3a-bec-step-down-voltage-regulator-pololu-2177/6118 "2019-08-17T04:40:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Core](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/core/32/57_2.png) [@Core](https://forum.core-electronics.com.au/u/Core)\
**Post date:** [17 August 2019 04:40 UTC](https://forum.core-electronics.com.au/t/5v-3a-bec-step-down-voltage-regulator-pololu-2177/6118/1 "2019-08-17T04:40:22Z")

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This is a placeholder topic for [**“5V 3A BEC Step-Down Voltage Regulator”**](http://core-electronics.com.au/catalog/product/view/sku/POLOLU-2177) comments.

 ![](https://core-electronics.com.au/media/catalog/product//5/v/5v_3a_bec_step_down_voltage_regulator __pololu_2177__ 00.jpg)  
  
This switching step-down (or buck) voltage regulator takes an input voltage of up to 23 V and reduces it to 5 V with a maximum output current of 3 A. It has 22-AWG input leads with stripped and tinned terminations and a 3-pin “JR”-style servo connector on the output lead.  
  
[**Read more**](http://core-electronics.com.au/catalog/product/view/sku/POLOLU-2177)

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**Author:** ![Ming92943](https://avatars.discourse-cdn.com/v4/letter/m/b2d939/32.png) [@Ming92943](https://forum.core-electronics.com.au/u/Ming92943)\
**Post date:** [17 August 2019 04:40 UTC](https://forum.core-electronics.com.au/t/5v-3a-bec-step-down-voltage-regulator-pololu-2177/6118/2 "2019-08-17T04:40:23Z")

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Hi, I am using the Romeo BLE Mini to run 3 x HS805BB servos which are connected to 2, 3 and 8 on the board. I have it all working, using a 5V 3A power plug into the servo power input on the board, which is powered by USB.  
  
  
  
I would like to use bluetooth for comms, so I have ordered the BLE Link, remove the USB cable, and just have one power supply to run the board and the servos.  
  
  
  
Can I splice the power plug I have and hook it into the VIN and Servo power inputs?
