Highly integrated high efficiency DC/DC conversion
San-Hwa Chee and Howard Haensel
Abstract
The LTC1574 and LTC1265, high efficiency step-down regulators that minimize external components by using integrated low RDS(ON) P-channel switches, are described.
Keywords
Switching regulator
LTC1574
LTC1265
The LTC1574 and LTC1265 high efficiency step-down regulators minimize external components by using integrated low RDS(ON) P-channel switches. The LTC1574 goes one step further by including a low forward drop Schottky diode—an industry first. Both regulators also include on-chip low-battery detectors.
Burst Mode operation allows the LTC1574 and LTC1265 to achieve over 90% efficiency for load currents as low as 10mA. Current mode ...
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