Engineering English
Buck Converter
Electrical Engineering · Electronics Engineering · Last updated: July 30, 2026 · How this entry was written
Definition: A buck converter is a DC-to-DC power converter that steps down voltage from its input to its output while maintaining high efficiency.
Example in context
“The buck converter regulates the output voltage to 5V from a 12V input supply.”
“Buck dönüştürücü, çıkış voltajını 12V giriş kaynağından 5V'a düzenler.”
Where engineers use it
Buck converters are common in power supplies for electronics where a higher voltage must be efficiently reduced. Engineers design inductor and capacitor values to meet ripple and transient specifications.
Synonyms: step-down converter, buck regulator
Antonyms: boost converter
In Electronics Engineering
A buck converter is a DC-to-DC power converter that steps down voltage from its input to a lower output voltage. It uses switching elements and an inductor to efficiently regulate the output.
“A buck converter is used to step down 24V to 5V for powering logic circuits in the control board.”
Practice: can you use “Buck Converter” at work?
You are designing a power supply for a microcontroller that requires 3.3V from a 12V battery. Explain why a buck converter is preferred over a linear regulator.
Show a model answer
“A buck converter is ideal for stepping down voltage with high efficiency.”
“Buck Converter” in 21 languages
| English | Buck Converter |
|---|---|
| Turkish | buck dönüştürücü |
| French | convertisseur abaisseur |
| German | Abwärtswandler |
| Spanish | convertidor reductor |
| Chinese | 降压转换器 |
| Arabic | محول خفض الجهد |
| Portuguese | conversor buck |
| Russian | понижающий преобразователь |
| Japanese | 降圧コンバータ |
| Italian | convertitore buck |
| Vietnamese | bộ biến đổi buck |
| Hindi | बक कनवर्टर |
| Thai | คอนเวอร์เตอร์แบบบัค |
| Indonesian | konverter buck |
| Korean | 벅 컨버터 |
| Bengali | বক কনভার্টার |
| Dutch | buck-converter |
| Swedish | buckomvandlare |
| Finnish | buck-muunnin |
| Ukrainian | понижувальний перетворювач |
Frequently asked questions
What does Buck Converter mean in engineering?
A buck converter is a DC-to-DC power converter that steps down voltage from its input to its output while maintaining high efficiency. In Electrical Engineering, the term carries a usage-frequency rating of 10/10 in the Engineering English library.
How do you pronounce Buck Converter?
Buck Converter is pronounced /bʌk kənˈvɜːrtər/ (IPA). The Engineering English app plays audio for the term and checks your pronunciation with speech recognition.
How is Buck Converter used in a sentence?
Example from an engineering context: “The buck converter regulates the output voltage to 5V from a 12V input supply.”
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