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LT3091 Current Fold back

Processors & DSP iParmaksiz243 Feb 27, 2021 00:00 0 replies Original on forum ↗
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iParmaksiz243 Question
Feb 27, 2021 00:00

Hello there,

I have two power supplies operates at -26V,and 26V. I am trying to regulate voltage outputs to +24V and -24V. I have no issue with positive voltage regulator ,LT3081. LT3091 for some reason activates current fold back limit that only outputs -1.6 V when a load is connected. If there is no load I get -24V. However, when I do power cycle, I get -24 V out with a load. Could anyone help me with this behavior? I have to do this power cycling every time i turn on circuit.

LDO Linear Regulators

LT3081

LDO Plus

Positive Linear Regulators (LDO)

lt3091

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Screenshot-from-2021-02-27-10-01-33.png