onoffman
Member level 3
Refer to the circuit **broken link removed**
I am using the same except r4=887k and r3= 197k for getting 3.3V
and r2=887k and r1=442k for 1.8v
Vout is given by 0.6(1+r2/r1) volts and 0.6(1+r4/r3)
I have soldered the DFN10 pack chip and after that i am using this as a source for tests
9v batt>Lm7805>"LTC3407A-2 circuit"
But I am getting 1.4Volts and 3.4v. second one seems ok but the first voltage is way too low .. i used 1% tolerance resistors .
Please help me ,what may be the reason of low output? How to test it .
I am using the same except r4=887k and r3= 197k for getting 3.3V
and r2=887k and r1=442k for 1.8v
Vout is given by 0.6(1+r2/r1) volts and 0.6(1+r4/r3)
I have soldered the DFN10 pack chip and after that i am using this as a source for tests
9v batt>Lm7805>"LTC3407A-2 circuit"
But I am getting 1.4Volts and 3.4v. second one seems ok but the first voltage is way too low .. i used 1% tolerance resistors .
Please help me ,what may be the reason of low output? How to test it .