The best replacement for voltage regulator is surge protector.

The best alternatives to voltage regulator are rated as following:
★★★★★  surge protector
★★★★  alternator
★★★★  zener diode
★★★  line conditioner
★★★  transistor
★★★  voltage divider
★★  buck converter
★★  resistor
★★  power conditioner
★★  voltage reference
★★  alternator bad
★  rectifier
★  stator
★  mosfet
★  surge suppressor
★  charge controller
★  voltage stabilizer
  dc dc converter
  stabilizer
  avr

Your alternative for voltage regulator is not listed? Suggest!
Speaking about voltage regulator, one probably shouldn't forget about zener diode.

Other search terms related to voltage regulator and their ratings are:
★★★★★ zener diode
★★ zener
★ arduino
★ capacitors
You have in mind a companion for voltage regulator and it is not yet here? Propose!



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voltage regulator
surge protector
alternator