LTC7815

LTC7815 Low IQ, 2.25MHz, Triple Output, Buck/Buck/Boost Synchronous Controller FEATURES DESCRIPTION n Dual Buck Plus Single Boost Synchronous Controllers n Wide Bias Input Voltage Range: 4.5V to 38V n Outputs Remain in Regulation Through Cold Crank Down to a 2.5V Input Supply Voltage n Buck Output Voltage Range: 0.8V ≤ VOUT ≤ 24V n Boost Output Voltage Up to 60V n Low Operating IQ: 28μA (One Channel On) n RSENSE or DCR Current Sensing n 100% Duty Cycle for Boost Synchronous MOSFET Even in Burst Mode® Operation n Phase-Lockable Frequency (320kHz to 2.25MHz) n Programmable Fixed Frequency (320kHz to 2.25MHz) n Very Low Buck Dropout Operation: 98% Duty Cycle n Small 38-Lead 5mm × 7mm QFN Package APPLICATIONS n Automotive Always-On and Start-Stop Systems n Battery Operated Digital Devices n Distributed DC Power Systems n Multioutput Buck-Boost Applications The LTC®7815 is a high performance triple output (buck/ buck/boost) synchronous DC/DC switching regulator ...