Analog Devices Inc. DC2407A Demo Circuit for LT8650S

Analog Devices Inc. DC2407A Demo Circuit is a demonstration and evaluation board featuring a typical application circuit based on the LT8650S Synchronous Step-DownSilent Switcher 2. The demonstration circuit has offers 5V and 3.3V outputs. Each output can source up to 4A continuous current at the same time. The SYNC pin on the Demo Circuit Board is grounded by default for low ripple Burst Mode® operation. Jumper adjustments allow o synchronizing to to an external clock and enabling spread spectrum mode. The Demo Circuit 2407A runs at 2MHz to minimize solution size. The efficiency is 92%. The IC temperature rise is less than 50°C when both channels run at full load, 4A each, at 2MHz.

Specifications

  • Input Supply Range (VIN): 5.4V to 42.0V
  • Output1 Voltage (VOUT1): 4.8V to 5.2V, 5V typical
  • Maximum Output1 Current (IOUT1): 4A
  • Output2 Voltage (VOUT2): 3.168V to 3.432V, 3.3V typical
  • Maximum Output2 Current (IOUT2): 4A
  • Switching Frequency (fSW): 1.85MHz to 2.15MHz, 2MHz typical
  • Efficency @ DC OUT1=4A, IOUT2=4A, VIN=12V (EFE): 92%

Measurement Equipment Setup

Mechanical Drawing - Analog Devices Inc. DC2407A Demo Circuit for LT8650S

Conducted EMI Performance

Performance Graph - Analog Devices Inc. DC2407A Demo Circuit for LT8650S

Radiated EMI Performance

Performance Graph - Analog Devices Inc. DC2407A Demo Circuit for LT8650S
Published: 2019-05-22 | Updated: 2022-03-10