I'm building a Buck Converter using TI's UC3573 (www.ti.com.cn/.../uc3573.pdf), 10-15V input, 5V 2A output. However, it doesn't convert. AT ALL. The output voltage and input voltage are basically the same. Here's the schematic:
Output inductor is 100 uH.
Output capacitor is 660 uF.
Switching frequency is 100 kHz.
Is there something that I missed? My calculations check out.