I have the following test setup.
I am not getting any output from out pin. Kindly suggest if I am doing anything wrong. I have followed the schematic suggested in the datasheet.
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Hi Alok,
In the circuit, the voltage at FB pin is larger than 2.5V internal reference voltage. Then the error amplifier will output a low lever voltage, which is the inverting input of PWM comparator. This voltage will always be lower than CS pin voltage, then resulted in no PWM output.
So please check that whether COMP pin voltage is always lower than CS pin voltage?
Regards,
Teng