Minimize input capacitors in multioutput, high current power supplies
Wei Chen
Abstract
The LTC1628-SYNC, which minimizes input capacitors in multioutput, high current power supplies, is described.
Keywords
LTC1628-SYNC
LTC1629
Multiple output applications
Introduction
In broadband networking and high speed computing applications, multiple high current, low voltage power supplies are needed to power FPGAs, flash memory, DSPs and microprocessors. One such example calls for a maximum of 60A of current to power the CPU at 1.5V and up to 15A to power the memory at 2.5V from a 12V input. While a customized DC/DC module is usually expensive, the external circuitry for synchronization further increases the cost of individual supplies. ...
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