Sunking IC3....

[Boom]

Hi,

does anyone know if IC3 can be subbed for a IC7660S ? I can only get that one and the LTC1044, which I know is compatible.

Thanks

[madbean]

The ICL7660SPCA is the default charge pump for the stock unit. Not sure if there is any difference between an "S" and the "SCPA" version. My guess is probably none.

[oldhousescott]

The "S" is critical because it specifies the expanded voltage and oscillator frequency range. The "CPA" means 8-pin DIP with 0 to +70°C operating range.

[Boom]

Great, thanks guys.

Now that I know that they´ll both be ok, I´m gonna check what the real difference between those is. The LTC1044 is about TRIPLE the price of the IC7660S !