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Entry  Mon Aug 12 11:51:38 2019, Shalika Singh, Noise Budget, 2micronLasers, Noise Analysis of Voltage Regulator using SR785 Spectrum Analyser regulator.pdfNoise_across_Voltage_Regulator_Circuit.pdf
    Reply  Mon Aug 12 15:17:05 2019, Koji, Noise Budget, 2micronLasers, Noise Analysis of Voltage Regulator using SR785 Spectrum Analyser 
Message ID: 2393     Entry time: Mon Aug 12 15:17:05 2019     In reply to: 2391
Author: Koji 
Type: Noise Budget 
Category: 2micronLasers 
Subject: Noise Analysis of Voltage Regulator using SR785 Spectrum Analyser 

1. Heat: Check the polarity of the electrolytic or tantalum caps. 

2. Add 0.1uF high-K ceramic caps in pararel to these electrolytic or tantalum caps.

3. Why does LM317 have only one volt drop? It requires minimum 3V mergin between the input and output voltages. (See the datasheet) 

 

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