DATASHEET
ISL97656 FN6439
Rev 6.00
July 19, 2012 Step-Up Regulator with 4A Integrated Switch Features The ISL97656 is a high frequency, high efficiency current
mode control non-synchronous step-up voltage regulator
operated at constant PMW switching frequency. It has an
internal 4.0A, 120mО© Low side MOSFET and can deliver high
output current and efficiency over 90%. The selectable 640kHz
and 1.22MHz switching frequency allows use of smaller
inductor and faster transient response. An external
compensation pin gives the user flexibility in setting frequency
compensation allowing the use of low ESR ceramic output
capacitors. 4.0A, Low rDS(ON) Integrated Low Side MOSFET +2.2V to +6.0V Operating Input Voltage Range +1.1*VIN to +24V Output Voltage Range 640kHz or 1.22MHz Switching Frequency Higher Efficiency and Better Thermal Performance Adjustable Soft-Start Internal Thermal Protection When in shut down mode, ISL97656 draws current …
