Low cost, high efficiency 42A DC/DC converter
Wei Chen
Abstract
The LTC1709-based, low voltage, high current power supply, which achieves high efficiency and small size simultaneously, is described.
Keywords
DC/DC converter
LTC1709-8
LTC1709-9
Introduction
The LTC1709-8 and the LTC1709-9 are dual, current mode, 2-phase controllers that drive two synchronous buck stages out of phase. This architecture reduces the number of input and output capacitors without increasing the switching frequency. The relatively low switching frequency and integrated high current MOSFET drivers help obtain high power conversion efficiency for low voltage, high current applications. Because of the output ripple current cancellation, lower inductance ...
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