Switch with automatic shutdown (CB21258E)

This circuit was found in Maxim documentation from the 1990s. The RC circuit determines the trigger time.

12 V to 9 V Converter (CB15056E)
The output current of this circuit reaches 12 mA. The zener diode determines the output voltage. The...
Switching regulator without inductors (CB8126E)
Found in Maxim's documentation from the 90's, this circuit uses an integrated from the time...
High-speed buffer (CB9556E)
Found in a 1980s documentation, this circuit makes use of components from that time. Modern...