This is the perfect voltage regulator for mini quads. It is extremely tiny. It weighs about 4 grams. I like to think of it as the QAV250 BEC because it is my goto BEC for the QAV250
This BEC is ideal for regulating voltage for many components.
Input voltage: 4.5-28V
Output Voltage: 0.8-20V (adjustable)
Output current: rated current 3A(MAX).
Switching Frequency: 1MHz
Output Ripple: less than 30mV
Operating temperature: Industrial grade (-40 C to +85 C)
Module Properties: Non-isolated step-down module (buck)
Very Small. About 4 grams.
The QuadQuestions Micro BEC is a high frequency step-down switching regulator with an integrated internal high-side high voltage power MOSFET. It provides 3A output with current mode control for fast loop response and easy compensation.
The wide 4.5V to 28V input range accommodates a variety of step-down applications, including those in an automotive, Quadcopter, Airplane and other vehicular input environments. A 100μA operational quiescent current allows use in battery-powered applications.
High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses.
The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation.
By switching at 1.5MHz, the BEC is able to prevent EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications.