Hi~
Our customer will use LMZ30602 and LMZ31520.
If see LMZ30602 datasheet(19Page), it mentioned as bolow comment for sequensing
Many of the common power supply sequencing methods can be implemented using the SS/TR, INH and
PWRGD pins. The sequential method is illustrated in Figure 29 using two LMZ30602 devices. The PWRGD pin
of the first device is coupled to the INH pin of the second device which enables the second power supply once
the primary supply reaches regulation. Do not place a pull-up resistor on PWRGD in this configuration. Figure 30
shows sequential turn-on waveforms of two LMZ30602 devices.”
Our customer will design that connect to LMZ31520 INH Pin from LMZ30602 PWRGD Pin.
Can we need pull-up resistor to LMZ30602 PWRGD Pin?
Need we pull-up resistor R565/R567??
I attached schematic. Please review.
