Freedom Board for Kinetis K22F Hardware (FRDM-K22F) User’s Guide, FRDMK22FUG, Rev. 0, 07/2014

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Freescale Semiconductor, Inc.

FRDM-K22F Hardware Description

Figure 2. FRDM-K22F primary component placement

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FRDM-K22F Hardware Description

3.1

Power supply

There are multiple power supply options on the FRDM-K22F board. It can be powered from either of the

USB connectors, the VIN pin on the I/O header, DC jack (optional; not populated), or an off board

1.71–3.6 V supply from the 3.3 V pin on the I/O header. The USB, DC jack, and VIN supplies are regulated

onboard using a 3.3 V linear regulator to produce the main power supply. A direct voltage supply to the

K22F MCU is also available via J15. Table 1 provides the operational details and requirements for the

power supplies.