If the SHDN~ pin 8 signal is connected to pin 2, VL output as shown in: "Figure 1. Using an N-Channel MOSFET (MAX1847 only)" , then the converter does not start up. The SHDN~ pin needs to be connected…
For 300kHz switching frequency, the soft-start time is around 3ms. The MAX1847 features a “digital” soft-start that is preset and requires no external capacitor. Upon startup, the FB threshold decrements…
