помогите с подбором стабилизатора напряжения с 20в на 12в

integro

подойдет
BEC 3A 12V 4S-8S For FPV RC Multicopter Helicopter Airplane Car
?

Или сделать самим

для Tarot Brushless Gimbal T-2D for GoPro Hero3 Mount DJI Phantom TL68A00 FPV RTF

и для

5.8G 1W 1000MW Video Audio Transmitter TX

  • Onboard quiet switching regulator, supply 12V camera Transmitter:
  • DC in range: 12V/5000mA(7.0~15V)
  • Operating temperature: -10~+85°c
  1. The working voltage: DC 7.4V ~ 14.8V (Recommended 12V. three lithium battery)
  2. Working current: 200mA-500mA (power supply voltage and the motor related)