TMC8462 Datasheet • Document Revision V1.4 • 2018-May -09
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5.4.6 Minimum External Supply Circuit for Single 3.3V Supply
The diagram shows the minimum external circuit when using a single 3.3V supply only.
Both internal switching regulators are not used in this example. Therefore, both supply ports VS0 and VS1
are not connected.
The high voltage IOs are also not used in this example. Therefore, the three high voltage IO supply ports
VIO1, VIO2, and VIO3 are not connected.
VS=3.3V
VS=3.3V
TMC8462 Supply
VDD5_OUT
VS
100nF
VS0
VS1
SW1
VOUT
4x VCCIO
VOUT_FB
4x100nF
GND1
600 Ω @100MHz
1 Ω
PLLCLK_VCCIO
VDD1V8_OUT
SW0
SW_DIODE
GND_DIODE
100nF
1.8V
GND0
100nF
10x GND
4x VCC_CORE
PLLCLK_GND
4x100nF
VIO1/2/3
GNDIO1/2/3
Figure 24: Minimum external supply circuit for single 3.3V supply
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