ISL85403FRZ-T7A Datasheet PDF - Intersil

● Buck mode: input voltage range 3V to 40V

● Boost mode expands operating input voltage lower than 2.5V

● Selectable forced PWM mode or PFM mode

● 300µA IC quiescent current (PFM, no load); 180µA input quiescent current (PFM, no load, VOUT tied to AUXVCC)

● Less than 5µA (MAX) shutdown input current (IC disabled)

● Operational topologies

● Synchronous buck

● Non-synchronous buck

● Two-stage boost buck

● Non-inverting single inductor buck boost

● Programmable frequency from 200kHz to 2.2MHz and frequency synchronization capability

● ±1% tight voltage regulation accuracy

● Reliable overcurrent protection

● Temperature compensated current sense -

● Cycle-by-cycle current limiting with frequency foldback

● Hiccup mode for worst case short condition

● 20 Ld 4 x 4 QFN package

● Pb-free (RoHS compliant)