LT3663 FuncTional block DiagraM V R IN SENSE1 Q1 SW VIN C1 C3 D1 – BOOST A1 Σ + + R Q L – S D2 2.5V INTERNAL SLOPE DRIVER RUN REGULATOR, COMPENSATION REFERENCE, I UVLO AND OVP OSCILLATOR SENSE + – RSENSE2 G2 – + VOUT VOUT I C2 LIM RILIM R1 FB NOTE: RESISTOR DIVIDER V – C IS INTERNAL ON LT3663-X VERSIONS. G1+ R2 INTERNAL 0.8V COMPENSATION EXPOSED PAD (GND) 3663 BD 3663fc 6 For more information www.linear.com/LT3663 Document Outline Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Performance Characteristics Operation Applications Information Package Description