凌力尔特模拟创新杂志 (SEPTEMBER 2009）

Today’s high reliability systems require complex digital power management solutions to sequence, supervise, monitor and margin a large number of voltage rails. Indeed, it is not unusual for a single application board to have dozens of rails, each with its own unique requirements. Typically the power management solutions for these systems require that several discrete devices controlled by an FPGA or a microcontroller are sprinkled around the board in order to sequence, super-vise, monitor and margin the power supply array. In this scheme, signifi-cant time is required to develop the necessary firmware, and the tendency to underestimate the complexity and duration of that task is well known. The LTC®2978 octal PMBus power supply monitor and controller with EEPROM offers power supply system designers an integrated, modular solution that reduces debugging time and effort over microcontroller solu-tions. The LTC2978 can sequence on, sequence off, monitor, supervise, margin and trim up to eight power supplies. Multiple LTC2978s can be.
LINEAR TECHNOLOGY
SEPTEMBER 2009 VOLUME XIX NUMBER 3


IN THIS ISSUE… Power Management IC
COVER ARTICLE Digitally Monitors and
Controls Eight Supplies
Power Management IC Digitally
Monitors and Controls Eight Supplies
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Andrew Gardner

Linear in the News…............................2 by Andrew Gardner