I am using LP87524B to generate and regulate 3 sources. Buck0 is not used and I left Feedback pin floating. The reason for using only 3 and not 4 is the need to enable/disable bucks using the enable pins EN1, EN2, and EN3.
In order to enable/disable the bucks with both the register bit EN_BUCKx and ENx, I set the registers with the addresses 0x04, 0x06 and 0x08 to the following values respectively: 0xC4/0x44, 0xD4/0x54, AND 0xE4/0x64. However, the bucks are enabled and disabled only when the register is set to the mentioned values. Setting the enable pins high and low has no effect.
Can you help in this please? How can I switch on the bucks by setting the voltage and configuring the register first without generating the voltage, and then when I enable the related pin ENx of the buck, the voltage appears at the output, means I need the voltage to come up/switch off just when the enable pin is high/low respectively.
Thank you for help
