摘要:目前,單片開關式穩壓器正在逐步取代線性穩壓器。本文介紹ST公司新推出的L4978型單片開關式穩壓器的原理及應用。
敘詞:單片開關式穩壓器 雙極型晶體管-CMOS電路-DMOS功率管 軟啟動 自舉電路
Abstract:At present,the ingle-chip switching voltage regulator is progressively replacing the linear voltage regulator,This paper introduces the principle and application of L4978 type single-chip switching voltage regulator produced by ST compangy newly.
Keyword:single-chip switching voltage regulator Bi-CMOS-DMOS soft start bootstrap circuit