Hi. I'm attempting to do a retrofit on an existing product. My "add-on" draws too much power for the host device's wimpy voltage regulator. So I'm wondering if the following "bypass" is OK. Black lines are the existing circuit and blue are proposed. Goal is to be the same as existing but with more current handling ability. How is the dropout affected? If the original Vreg has a d/o of 1.7v and the new one has a d/o of 0.2v, are we looking at a 1.7v? 0.2v or something else? Thanks.
- Steven
ps.
The feasibility of my retrofit should be looked at in terms of mid-scale production run. Ie. its not a one-off that we can expect the end user to do any soldering, component removals, etc. So I guess I'm saying... please answer my question as its asked, rather than try to guess or suggest alternative means because I only have access to certain parts of the circuit and I'm not providing the whole picture here.
- Steven
ps.
The feasibility of my retrofit should be looked at in terms of mid-scale production run. Ie. its not a one-off that we can expect the end user to do any soldering, component removals, etc. So I guess I'm saying... please answer my question as its asked, rather than try to guess or suggest alternative means because I only have access to certain parts of the circuit and I'm not providing the whole picture here.
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