Like subject says really, I'm seeing if its Good... erm, Acceptable Design to power two EEPROM ics from a voltage divider (knowcked down to 3V) off of my 5V regulator ?
I have two 8pin EEPROMs, one is 1.8-5V tolerant, the other has a maximum of 3V. If I split off a divider from my 5V regulator and these two chips are both writing at the same time I think the current should be around 20mA (writing both at the same time will never happen, but lets just say)
There shouldn't be a problem with this correct ? Maybe I should set it up for a zener instead ? I think my only concern is making sure the resistors that make up the divider are relatively of low. I could add a 3V regulator, but I'm trying to keep costs down, these roms will rarely be read from, probably never written to (accept for initial programming)
Just getting opinions, Thanks
I have two 8pin EEPROMs, one is 1.8-5V tolerant, the other has a maximum of 3V. If I split off a divider from my 5V regulator and these two chips are both writing at the same time I think the current should be around 20mA (writing both at the same time will never happen, but lets just say)
There shouldn't be a problem with this correct ? Maybe I should set it up for a zener instead ? I think my only concern is making sure the resistors that make up the divider are relatively of low. I could add a 3V regulator, but I'm trying to keep costs down, these roms will rarely be read from, probably never written to (accept for initial programming)
Just getting opinions, Thanks