Analog Devices LTC7131-1, Manual

1

DEMO MANUAL 

DC2824A-A

Rev. 0

DESCRIPTION

LTC7131-1 

25A Monolithic Synchronous DC/DC Step-

Down Converter with PMBus Interface 

Demonstration circuit 2824A-A is a single output buck 

converter with 4.5V to 20V input voltage range featuring 

the 

LTC

®

7131-1

, a 25A monolithic synchronous step-

down converter with a PMBus interface. The output volt-

age is adjustable from 0.4V to 4V and the converter can 

supply up to 25A of load current. 
The DC2824A-A powers up to default settings and pro-

duces power based on configuration resistors without the 

need for any serial bus communication, which allows easy 

evaluation of the DC/DC converter. 
To fully explore the extensive power system manage-

ment features of the part, download the GUI software 

LTpowerPlay

®

 onto your PC and use ADI’s USB-to-PMBus 

dongle 

DC1613A

 to connect to the board. 

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BOARD PHOTO

LTpowerPlay allows users to monitor fault status and 

real-time telemetry of input and output voltages, input 

and output current, and internal IC die temperature. 

Programmable parameters include device address, out-

put voltage, on/off control, and fault response to output 

overvoltage and output overcurrent. 
The LTC7131-1 data sheet gives a complete description 

of this part, its operation and application information and 

must be read in conjunction with this quick start guide 

for DC2824A-A.

Design files for this circuit board are available

.