thank you for the help , components are all correct and layout too.
i tested as follows
> reduced the 5v supply with a 270ohm to approx 4.7v .(Measured with DMM at input )
resulted in o/p 1.01v and 2.7v
This shows that the regulator is not running...as i suspected IC is wrongly soldered.
Vref1 =0.5v
and Vref2=2v !!!!
datasheet tells these need to be 0.6v
IC is in dfn10 pack i soldered with a thin iron , it got tilted a little .. i will borrow a Hot air pencil and remove the chip and put new one properly.
>