Power solutions for Altera’s Arria 10 FPGA, from Linear Tech.

Feature articles | August 27, 2015

By eeNews Europe

For example, the LTC3877 VID controller plus LTC3874 phase extender DC/DC regulator provide 105A at 0.95V for the core rail from a 12V input. To complement the power saving advantages of the Arria 10 FPGA, this solution provides two advantages that Linear ites as key;

– a 6-bit parallel VID that interfaces directly with the Arria 10’s SmartVID to reduce the FPGA’s static and dynamic power consumption

– ultralow value and temperature compensated DCR load current sensing, which maximise the efficiency and load current precision

Full details of this board can be found at linear.com/altera – Individual power rails are provisioned as follows; (next page)

Rail/Function	Part Number(s)	Description
FPGA core	LTC3877 + LTC3874	105A @ 0.9V regulator interfaces with Arria 10 SmartVID
High speed transceivers	LTM4637	20A µModule regulator
Power UP/DOWN sequencing, power monitoring, voltage margining and fault management	LTC2977	8-channel PMBus power system manager
PowerPath^™ management	LTC4357	High voltage ideal diode controller
3.3V intermediate bus from 12V_IN	LTM4620	Dual 13A or single 26A µModule regulator
Input overvoltage protection	LTC4365	Overvoltage, undervoltage and reverse supply protection controller
Housekeeping system power and power management	LT1965, LT3082, LTC4352, LTC3025-1, LTC2418	Low noise linear regulators, 24-bit ADC; low voltage ideal diode