RE: Putzing with a MAXIM ICL7662 Voltage Converter

volly — Tue, 16 Aug 2016 22:34:02 GMT

[mention:f80b53cee57c44bc9d7c577d07d7c791:e9ed411860ed4f2ba0265705b8793d05]. Simply excellent!

RE: Putzing with a MAXIM ICL7662 Voltage Converter

DAB — Wed, 03 Aug 2016 17:45:08 GMT

Great post and demo John.

Well done.

DAB

RE: Putzing with a MAXIM ICL7662 Voltage Converter

shabaz — Wed, 03 Aug 2016 10:11:15 GMT

Hi John,

It is such a useful circuit, and nice method to demonstrate it, with that LED! It is so useful other manufacturers like Microchip have a version of the device too (TC7662).

Although current output is low with this device, nevertheless it is less noisy than DC-DC converters with inductor, so perfect for op-amp circuits as you say.

I needed to do that recently for powering some analog circuitry (similar circuit but in voltage doubling mode, I needed a >9V supply from 5V),

there is a lower-priced alternative which is pin-compatible, Analog Devices ADM660, and it has the benefit of higher output current.

(I like the voltage doubling circuit, one of the few circuits where you apply the +ve supply to the GND pin of the IC!).

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