AN1127.2, Application Note for ISL6740EVAL3Z

AN1127.2, Application Note for ISL6740EVAL3Z used for a 48V to 12V, 3.3V and 1.5V isolated power supply. It utilizes an ISL6740 double-ended voltage mode controller in half bridge topology to provide an isolated 48V to 12V conversion. An ISL6402 dual PWM controller in synchronous buck topology provides 3.3V and 1.5V outputs from +12V rail