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概览

优势和特点

  • Operates from a 6.5V to 80V Input Supply
  • Up to 3A Load Current
  • 5V Output Voltage
  • 400kHz Switching Frequency
  • High 91% Efficiency (VIN = 48V, IOUT = 3A)
  • Selectable PWM and SFM Modes of Operation
  • Die Temperature Monitor
  • Enable/UVLO Input, Resistor-Programmable Input Undervoltage Lockout (UVLO) Threshold
  • Adjustable Soft-Start Time
  • Open-Drain RESET Output
  • External Frequency Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven Printed Circuit Board (PCB) Layout
  • Fully Assembled and Tested
  • Complies with CISPR 32 (EN55032) Class B Conducted and Radiated Emissions

产品详情

The MAX17793 5V output evaluation board provides a proven design to evaluate the MAX17793 high voltage, high-efficiency, synchronous step-down DC-DC converters. The application circuit is configured to demonstrate optimum performance and component sizes in the evaluation board. The evaluation board also provides a good layout example, optimized for conducted, radiated Electromagnetic interference (EMI), and thermal performance.

The evaluation board is configured to operate at 400kHz switching frequency over a 6.5V to 80V input voltage range and deliver up to 3A load current.

The evaluation board features an adjustable input undervoltage-lockout, adjustable soft-start, open-drain RESET/TJ, die temperature monitor, external clock synchronization, thermal shutdown, and selectable mode of operation [pulse-width modulation (PWM) or switching frequency modulation (SFM)].

The MAX17793 converter data sheet provides a complete description of the part that should be read in conjunction with this user guide before operating the evaluation board.

技术与领域

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