BUCK FUNCTION REGISTER (BFCR) – 0x38

This register allows the Buck switcher clock frequency to be spread across a wider range, allowing for less Electro-magnetic

Interference (EMI). The spread spectrum modulation frequency refers to the rate at which the frequency ramps up and down,

centered at 2 MHz.

20197825

D7-2

D1

D0

Name

—

BK_SLOMOD

BK_SSEN

Access

—

R/W

R/W

Data

Reserved

Buck Spread Spectrum Modulation

0 – 10 kHz triangular wave

1 – 2 kHz triangular wave

Spread Spectrum Function Output

0 – Disabled

1 – Enabled

Reset

000010

1

0

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