DC2575A - Schematics9/5/2017
Demonstration circuit DC2575A is a 60V 2MHz synchronous buck-boost LED driver featuring the LT8391A. It accepts an input voltage from 4V to 60V and drives a single string of LEDs up to 16V at 1.5A. DC2575A runs at 2MHz switching frequency and features spread spectrum frequency modulation (SSFM) which can be enabled with a simple jumper. SSFM spreads the switching frequency from fSW to fSW + 25% for reduced EMI. SSFM is not necessary in applications where EMI is not important.
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