I'm trying to make a 9v to 5v step-down voltage regulator using MC34063
I used an online calculator for the values and assembled this schematic for stepdown config:
The calculator gave me these values (for Vin=9, Vout=5, Iout=750, Vripple=1, Fmin=100):
Ct=257 pF Ipk=1500 mA Rsc=0.2 Ohm Lmin=13 uH Co=1875 uF R1=1k R2=3k (5V)
I used a 1800uF capacitor and 10mH inductor but on the output I'm measuring 0.8V instead of 5v with voltmeter
What I'm doing wrong?