EVAL-LT8350S-AZ

EVAL-LT8350S-AZ is an evaluation board featuring the LT®8350S, a 40V synchronous buck-boost converter. It drives up to 2.5A load at 12V output when VIN is between 9V and 40V and will run down to 3VIN with reduced output current. EVAL-LT8350S-AZ runs at 350kHz switching frequency with spread spectrum frequency modulation (SSFM) disabled. When enabled, SSFM spreads the switching frequency of the LT8350S from fSW to fSW + 25% for a reduced electromagnetic interference (EMI) emission. The LT8350S has an operating input voltage range of 3V to 40V. It has internal, synchronous 42V MOSFETs on the buck side and 20V MOSFETs on the boost side for high efficiency and small size. It has an adjustable switching frequency between 200kHz and 2MHz. The LT8350S can be synchronized to an external source, programmed with SSFM enabled for low EMI, or set to normal operation.

• Reduced EMI emissions for CISPR 25 Class 5
• Spread spectrum frequency modulation, input and output EMI filter
• In-built Input and output high-frequency capacitors
• Adjustable UVLO, VOUT, fSW, output current and limit
• Voltage-monitoring (PGOOD) and current-monitoring (ISMON)
• Configurable SYNC pin for FCM, DCM, SSFM, and external frequency synchronization
• Feed forward function for improved transient response