I want to use the LM9036 with a series resistor (variable between 1k and 10k) in the supply line.
24V --- [3,3k] ---- Vin[LM9036] I have Cin=100nF and Cout=10µF. No additional load. Later there will be a load of 100 to 150µA
If I turn on the 24V voltage, a current of 6mA flows into the regulator. The voltage at Vin breaks down to 2,8V. This situation stays until I bypass the resistor a very short time. Then the supply current to Vin reduces to 15µA.
The same with series resistor 10k: A Current of 2,2mA flows when I turn on the 24V, until I bypass the resistor.
Which regulators with Vinmax=40V and a quiescent current of max 100µA can start without problems with a series resistor of 10k (with Load max 150µA) ?
It doesn´t need to be a low drop regulator, any other is fine, too.
In the later design the regulator will be switched on and off about once a second.
I have not testet this with the LM2936. Makes it sense to buy/sample this, or will it have the same behavior?
Are there any other regulator that can solve this problem?