Loss of Regulation when connecting a Load (Viper06)

[ahmed239955_st]

Posted on July 10, 2016 at 03:24

Hello, 

I have used Viper06L (60KHz) as a buck to get 9V output, with no load I have the right output voltage. But when I connect any load (even it is light) the output voltage drops .

As the load resistance decreases the output voltage decreases !!

The same occurs with Viper06X (30KHz) , the output should be 5V , and it is 5V without load , but when connecting a load the output voltage decreases. 

One Led with a 200 ohm resistor drops the output voltage to 2.8V !!

I have tried to increase the output capacitance but no change occurs .

#viper06

[Patrizia BELLITTO]

Posted on July 13, 2016 at 11:57

Hello,

could you please send us more info about your application?

I.e., a screenshot or the report from eDesign, your board detail and some waveforms, if possible.

Thanks a lot,

Patrizia Bellitto

eDesignSuite developers team