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DC-DC Buck Boost Converter Teardown

Unboxing
IMAGE 01
Initial Unboxing
Module arrives in anti-static packaging with protective foam. Note the compact form factor optimized for breadboard prototyping.
Top View
IMAGE 02
Top View - Controls
Two potentiometers for voltage and current adjustment. LED display provides real-time voltage readout.
Bottom View
IMAGE 03
Bottom View - PCB
PCB layout reveals power trace routing. Wide copper pours handle 4A current without excessive I²R losses.
Inductor Closeup
IMAGE 04
Power Inductor
Toroidal inductor (~100µH) with ferrite core. Critical component for storing energy in buck-boost switching cycle.
Display Module
IMAGE 05
LED Display Driver
3-digit 7-segment LED with dedicated driver IC. Multiplexed display reduces pin count requirements.
Heatsink
IMAGE 06
MOSFET Heatsinking
Aluminum heatsink bonded to switching MOSFET. Essential for thermal management at max 4A load.