Digital Current Mode DC/DC converter IC tape out
Use an all-digital delay line circuit for voltage-to-time conversion. This delay line converts the VDD power signal of a transistor to the delay time of input pulses.
The DC to DC converter IC, which includes a delay line converter, PID controller, and a DPWM circuit, is implemented in TSMC 0.35 process. The photo of the IC is in this link:
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