Other Parts Discussed in Thread: LM317, TPS7B4253-Q1, TPS7B4254-Q1, TPS7B4250-Q1
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
thanks charlie