EVAL-LT8277-AZ

EVAL-LT8277-AZ is an evaluation circuit to evaluate dual-phase nonsynchronous high-power step-up converter featuring the LT8277. It regulates the output voltage up to 60V and drives up to a 3A load at 60V when the VIN is between 9V and 36V. The EVAL-LT8277-AZ runs at 200KHz switching frequency with the ability to turn on spread spectrum frequency modulation (SSFM) for reduced EMI emission. It can run with or without SPI communications. Multiple EVAL-LT8277-AZ can be paralleled to deliver more output power. A graphic user interface (GUI) is available when connected to a DC2026C Linduino One demo circuit. The LT8277 is a dual-phase interleaved current mode boost and SEPIC controller. It has a wide input voltage range from 3V to 40V and an adjustable switching frequency between 100KHz and 2MHz.

• Input voltage PVIN range from 9V to 36V
• 200KHz typ switching frequency
• Output voltage range VOUT range from 9 to 60V at set by SPI interface
• 3A max output current IOUT at VIN = 9V, VOUT = 60V
• 92% typ efficiency at VIN = 12V, VOUT = 60V, IOUT = 3A

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