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Part Number: LM2941
Hi - I'm trying to setup two LM2941 regulators to operate with one control. I have built a prototype of a simple setup using a single pair of resistors (OUT to ADJ (1.8k) and ADJ to GND (470 ohm)) on one of the LM2941 regulators and connected a second LM2941 so that its connected to the same input, control (on/off), GND and ADJ - the outputs are separate and there is no OUT to ADJ resistor on the second LM2941 . I get very different output voltages from the two regulator outputs. Obviously they are not tracking at all closely. If I use the same setup with two LM317s it works fine. Is there something else needed or a different arrangement required (for LDOs) to allow two LM2941s to share a single control
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In reply to Ryan Eslinger:
I was after an LDO that could handle at least an input of 12 v and outputs of 6v to 10.5 - using a 3 bit digital control to parallel resistors . The LDOs you mention TPS743 doesn't support my input voltage ...not sure the TPS7B5x-Q1 as I could not find a reference to the family on the TI site ..is the part number right? could you provide a link to any of the devices in that TPS7B5x-Q1 family and I can check out the data sheets from there.
In reply to Charlie Azz:
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