CY8CKIT-030 PSoC® 3 Development Kit Guide, Doc. # 001-61038 Rev. *J
21
Hardware
Figure 4-6. USB Interface
4.2.4
Boost Convertor
The PSoC 3 device has the unique capability of working from a voltage supply as low as 0.5 V. This
is possible using the boost convertor. The boost convertor uses an external inductor and a diode.
These components are prepopulated on the board.
Figure 4-7
shows the boost convertor.
To enable the boost convertor functionality, make the following hardware changes on the board:
■
Populate resistors R25, R27, R29, and R31
■
Ensure that R1 and R28 are not populated
After making these changes, you can configure the project to make a boost convertor-based design.
The input power supply to the boost convertor must be provided through the test points marked Vbat
and GND.
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