EVAL-LT7175-1-AZ

製品概要

The evaluation kit EVAL-LT7175-1-AZ is a dual-phase, single-output monolithic DC/DC synchronous step-down regulator featuring the LT7175-1, with a 2.7V to 4V input range. With 3V to 12V EXTV_CC provided, the input voltage can be as low as 1.5V. The output can supply a continuous load current of 24A. The Silent Switcher^® regulator structure is incorporated into the LT7175-1 to minimize EMI and reduce PCB layout sensitivity. It also integrates digital power system management functionality, allowing programmability and telemetry through a PMBus/I²C compliant serial interface. Refer to the LT7175-1 data sheet for more detailed information.

The EVAL-LT7175-1-AZ evaluation board is designed for 0.5V output with a switching frequency set at 1.5MHz. The controlled on-time valley current-mode control with 25ns typical minimum on-time enables high switching frequency at low output voltage, along with excellent transient response in a small overall solution size.

The EVAL-LT7175-1-AZ powers up with default settings and produces power based on the NVM configuration without the need for any serial bus communication. This allows for easy evaluation of the DC/DC converter. To fully explore the power system management features of the part, download the LTpowerPlay^® GUI software onto a PC and use ADI’s I²C/SMBus/PMBus dongle (DC1613A) to connect to the board. LTpowerPlay allows the user to reconfigure the part on the fly, store the configuration in NVM, and view telemetry of voltage, current, temperature, and fault status. The NVM can be programmed up to three times.

GUI Download

The software can be downloaded from LTpowerPlay.

The LT7175-1 data sheet provides a complete description of the part, operation, and application information. The data sheet must be read in conjunction with this demo manual for EVAL-LT7175-1-AZ.

For more details and instructions for LTpowerPlay, refer to the LTpowerPlay GUI and the LT7175-1 Quick Start Guide.