ISL85403FRZ-T7A

Conv DC-DC Single-OUT Step Up/Step Down 3V to 36V 20Pin QFN T/R

* 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