The ISL85001 is a high-performance, simple output
controller that provides a single, high frequency power
solution for a variety of point-of-load applications. The
ISL85001 integrates a 1A standard buck PWM controller and
switching MOSFET.
The PWM controller in the ISL85001 drives an internal
switching N-Channel power MOSFET and requires an
external Schottky diode to generate an output voltage from
0.6V to 19V. The integrated power switch is optimized for
excellent thermal performance for up to 1A of output current.
The standard buck input voltage range supports a fixed 5V
or variable 5.5V to 25V range. The PWM regulator switches
at a fixed frequency of 500kHz and utilizes simple voltage
mode control with input voltage feed-forward to provide
flexibility in component selection and minimize solution size.
Protection features include overcurrent, undervoltage and
thermal overload protection integrated into the IC. The
ISL85001 power-good signal output indicates loss of
regulation on the PWM output.
ISL85001 is available in a small 4mmx3mm Dual Flat
No-Lead (DFN) package.