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Direct Effi cient DC/DC Conver

消耗积分:2 | 格式:rar | 大小:44 | 2009-09-30

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Direct Effi cient DC/DC Conversion of 100V Inputs for Telecom/Automotive Supplies

Automotive, telecom and industrial systems have harsh,
unforgiving environments that demand robust electronic
systems. In telecom systems the input rail can vary from
36V to 72V, with transients as high as 100V. In automotive
systems the DC battery voltage may be 12V, 24V or 42V
with load dump conditions causing transients up to 60V
or more. The LTC®3810 is a current mode synchronous
switching regulator controller that can directly step
down input voltages up to 100V, making it ideal for these
harsh environments. The ability to step down the high
input voltage directly allows a simple single inductor
topology, resulting in a compact high performance power
supply—in contrast to the low side drive topologies that
require bulky, expensive transformers.

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