TMC8462 Datasheet • Document Revision V1.4 • 2018-May -09
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5.4.7 Minimum External Supply Circuit for Single 5V Supply
The diagram shows the minimum external circuit when using a single 5V supply only.
Switching regulator 0 is used to generate the 3.3V for VCCIO and PLLCLK_VCCIO.
Switching regulator 1 is not used in this example. Therefore, supply port VS1 is 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=5V
TMC8462 Supply
VDD5_OUT
VS
100nF
100nF
100nF
SW1
VOUT
VS0
VOUT_FB
VS1
GND1
3.3V
1.8V
3.3V
4x VCCIO
22µH
22µF
4x100nF
SW0
SW_DIODE
GND_DIODE
1 Ω
600 Ω @100MHz
47µF
PLLCLK_VCCIO
VDD1V8_OUT
4x VCC_CORE
VIO1/2/3
100nF
GND0
100nF
10x GND
PLLCLK_GND
4x100nF
GNDIO1/2/3
Figure 25: Minimum external supply circuit for single 5V supply
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