Power Signals (Boost, Gnd, Lc); Figure 57: Steval-Isb044V1 Evaluation Board: Power Signal Routing; Figure 58: Steval-Isb044V1 Evaluation Board: Ground Plan - ST STEVAL-ISB044V1 User Manual

UM2301
8.1

Power signals (BOOST, GND, LC)

DC-DC boost signals are designed on the same layer: tracks must be wide (>2 mm) to
handle high current.

Figure 57: STEVAL-ISB044V1 evaluation board: power signal routing

Layer 1: large GND tracks with lot
of vias for high power circuits

Figure 58: STEVAL-ISB044V1 evaluation board: ground plan

Full GND plan
on Layer 2
DocID031141 Rev 1
Board assembly and layout
Layer 1: Large tracks for high
current circuits (booster, half
bridge, LC tank)
Only a few noisy signals
routed partially on this layer
(PWM)
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