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LM34936: Wrong output voltage

Part Number: LM34936

Hi 

I have an issue with LM34936circuit which I put together which is exact circuit as EVM board. The output voltage supposes to be 12v but I am getting around 1.943V.

Below is the measurement for different points:

V input = 24V
VEN= 4.7V
VCC = 4.374V
Vmode = 1.877V
Vosns = 1.933V
Vbias = 1.944V
Vfb = 0.131V
Vcomp = 3.187V
VHo1= 3.13V
VSW1= 1.778V
VLo1= 0.353V
VLo2= 0.1V
Vsw2 =1.786V
VH02 = 4.403V
VCS = 0.014V
VCSG = 0.016V
Vpgood = 0.055V

Dither is grounded

Please let me know if you need any more reading. Please also ignore Enable circuit I know is not correct, but I am manually turning on the Enable.

Enable is off = 0V Showing SW1

Enable is on Showing SW1

A-1300.pdf