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Microchip Technology EV23P28A Evaluation Board

Microchip Technology EV23P28A Evaluation Board is designed to simplify the evaluation and testing of the MCP16701 IC capabilities. This evaluation board features circuitry that enables load transient testing with fast current rise time and fast and controlled fall time. If multiple channels are tested under the load, the EV23P28A board requires a power supply at VSYST with at least 7A current capability. This evaluation board can be powered directly from the USB connector by connecting jumper J5. The EV23P28A board includes an onboard load transient generator circuit. This circuit can be used with an external signal generator to evaluate the load step response of bucks 1 to 4 and the LDO controller. Typical applications include DSP power and MPU power supply solutions.

Features

  • 2.7V to 5.5V input voltage range
  • 3.4MHz I2C Interface
  • Eight 1.5A buck DC-DC channels
  • Four 300mA high-accuracy LDOs
  • Selectable phase (0°, 90°, 180°, or 270°) for buck channels
  • Global RESET (nRSTO_A) with programmable deassertion delay
  • User-defined RESET (nRSTO_P) with programmable deassertion delay
  • High-accuracy, high-PSRR LDO controller using external N-channel MOSFET (Q1)
  • Output voltage of 1V for paralleled bucks 1 to 4 and current capability up to 6A
  • Output voltage of 1.35V for paralleled bucks 5 to 6 and current capability up to 3A
  • Output voltage of 3.3V for buck 7 and current capability of 1.5A
  • Output voltage of 1.35V for buck 8 and current capability of 1.5A
  • 100% duty cycle capability of buck channels
  • 1.05V LDO controller output voltage
  • Reference Ground (REFGND) is routed to bucks 1 to 4 for an improved accuracy of the output voltage
  • Low-noise forced-PWM and light-load high-efficiency mode available (Pin-selectable or bit control)
  • External synchronization of switching frequency
  • On die programmable NVM
  • NVM write password protection
  • Dedicated VDD supply pin for NVM and interface allows programming without powering up the application
  • Reconfigurable during runtime
  • Hiccup-mode current limit for buck channels (can be disabled)
  • Programmable thermal early warning and thermal shutdown protection
  • LED visual indicator for the nINTO pin (interrupt flag) with selectable interrupt masking for each channel
  • On-board load transient generator for VOUT1234 and LDOC_OUT
  • Test points and headers for all available outputs and input
  • Test points for switch nodes
  • Headers for ease of access to all digital signals
  • USB-C® connector for easy connection with the Host PC
  • General Purpose Output (GPO)
  • Watchdog Timer (WDT)

Applications

  • High-performance MPUs power supply solutions
  • µC/µP, FPGA, and DSP power

Related IC

Microchip Technology MCP16701 Power Management Integrated Circuit

Integrates eight DC-DC Buck regulators, four 300mA LDOs, and one LDO controller.

Learn Moreabout Microchip Technology MCP16701 Power Management Integrated Circuit View Productsrelated to Microchip Technology MCP16701 Power Management Integrated Circuit

Additional Resource

Published: 2025-06-22 | Updated: 2025-07-15