What the ratings mean for the BOM
The 100 kHz switching frequency is the anchor for the boost inductor and EMI filter design. A fixed frequency simplifies the control loop but means the magnetics must be sized for that specific switching loss and core loss trade-off. The 11 V to 25 V supply range covers most auxiliary windings from a PFC boost stage or a downstream DC-DC converter; verify your bias rail stays within that window under all load conditions. The 450 µA startup current is low enough to avoid loading the startup resistor excessively, which helps keep standby losses in check.
Lifecycle and sourcing reality
That means it remains a valid choice for new designs and production BOMs—no last-time-buy scramble or forced redesign on the horizon.