DATASHEET
ISL85033
Wide VIN Dual Standard Buck Regulator With 3A/3A Continuous Output Current FN6676
Rev 8.00
February 17, 2015 Features The ISL85033 is a dual standard buck regulator capable of 3A
per channel continuous output current. With an input range of
4.5V to 28V, it provides a high frequency power solution for a
variety of point of load applications. Wide input voltage range from 4.5V to 28V Adjustable output voltage with continuous output current up
to 3A The PWM controller in the ISL85033 drives an internal
switching N-Channel power MOSFET and requires an external
Schottky diode to generate the output voltage. The integrated
power switch is optimized for excellent thermal performance
up to 3A of output current. The PWM regulator switches at a
default frequency of 500kHz and it can be user programmed
or synchronized from 300kHz to 2MHz. The ISL85033 utilizes
peak current mode control to provide flexibility in component
selection and minimize solution size. The protection features
include overcurrent, UVLO and thermal overload protection. Current mode control Adjustable switching frequency from 300kHz to 2MHz Independent power-good detection Selectable in-phase or out-of-phase PWM operation Independent, sequential, ratiometric or absolute tracking
between outputs Internal 2ms soft-start time Overcurrent/short circuit protection, thermal overload
protection, UVLO The ISL85033 is available in a small 4mmx4mm Thin Quad
Flat No-Lead (TQFN) Pb-free package. Boot undervoltage detection Related Literature Pb-free (RoHS compliant) AN1574 “ISL85033DUALEVAL1Z Wide VIN Dual Standard
Buck Regulator With 3A/3A Output Current” Applications AN1585 “ISL85033EVAL2Z (Small Form) Wide VIN Dual
Standard Buck Regulator With 3A/3A Output Current -Short …
