LTC3601 FUNCTIONAL BLOCK DIAGRAM V C ON IN VON VIN 180k VIN AV = 1 3.3V VIN REG ION CONTROLLER ION 6V INTVCC VVON CVCC tON = R IION S Q BOOST RT OSC TG M1 CBOOST RRT SWITCH LOGIC ON SW L1 15k AND + + ANTI- SHOOT COUT ICMP IREV THROUGH SENSE+ MODE/SYNC – – OSC SENSE– PLL-SYNC RUN BG M2 PGND FOLDBACK DISABLED INTV AT START-UP CC PGOOD + 0.3V FOLDBACK – – 0.648V Q2 Q4 OV R2 ITHB FB Q6 + R1 Q1 SGND – UV + 0.552V INTVCC – SS + – RUN + EA + + – 1.4µA 0.48V 1.25V 0.6V REF INTERNAL SOFT-START ITH RUN TRACK CC1 CSS RC 3605 BD 3601fc 8 For more information www.linear.com/LTC3601 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Related Parts