TPS54538 3.8V to 28V, 5A, Synchronous Buck Converter With User Selectable Mode

1 Features ? Configured for a wide range of applications – 3.8V to 28V input voltage range – 0.6V to 22V output voltage range – Up to 5A continuous output current – 0.6V ±1% reference voltage (–40°C to 150°C) – 70ns and 114ns minimum switching on and offtime – 8us maximum switching on-t

文件：2.31814 Mbytes 頁(yè)數(shù)：44 Pages

TI

德州儀器

TPS54x38 3.8V to 28V, 5A, 4A, 3A, Synchronous Buck Converter With User Selectable Mode

1 Features ? Configured for a wide range of applications – 3.8V to 28V input voltage range – 0.6V to 22V output voltage range – Up to 5A (TPS54538), 4A (TPS54438), 3A (TPS54338) continuous output current – 0.6V ±1% reference voltage (–40°C to 150°C) – 70ns and 114ns minimum switching on

文件：2.35593 Mbytes 頁(yè)數(shù)：46 Pages

TI

德州儀器

3.8V 至 28V、5A、200kHz 至 2.2MHz、同步降壓轉(zhuǎn)換器

TPS54538 是一款高效率、高電壓輸入、易于使用的同步降壓轉(zhuǎn)換器，具有高設(shè)計(jì)靈活性。TPS54538 具有 3.8V 至 28V 的寬工作輸入電壓范圍，設(shè)計(jì)用于由 5V、12V、19V 和 24V 總線電源軌供電的系統(tǒng)。該器件支持高達(dá) 5A/4A/3A 的持續(xù)輸出電流和 98% 的最大占空比。\n\nTPS54538 采用固定頻率峰值電流控制模式，并具有內(nèi)部補(bǔ)償功能，可實(shí)現(xiàn)快速瞬態(tài)響應(yīng)以及出色的線性調(diào)整率和負(fù)載調(diào)整率。該器件具有經(jīng)過(guò)優(yōu)化的內(nèi)部環(huán)路補(bǔ)償功能，因此在寬輸出電壓范圍和開(kāi)關(guān)頻率范圍內(nèi)無(wú)需外部補(bǔ)償。集成自舉電容器有助于實(shí)現(xiàn)單層 PCB 并減少外部元件數(shù)量。\n\nTPS545 配置適用于各種應(yīng)用 \n \n輸入電壓范圍為 3.8V 至 28V\n \n0.6V 至 22V 輸出電壓范圍\n \n持續(xù)輸出電流高達(dá) 5A\n \n0.6V ±1% 基準(zhǔn)電壓（–40°C 至 150°C）\n \n70ns 和 114ns 最短開(kāi)關(guān)導(dǎo)通和關(guān)斷時(shí)間\n \n8us 最大開(kāi)關(guān)導(dǎo)通時(shí)間\n \n98% 最大占空比\n \n\n \n高效率 \n \n集成 47mΩ 和 21mΩ MOSFET\n \n28uA 的低靜態(tài)電流（典型值）\n \n\n \n易于使用且設(shè)計(jì)小巧 \n \n峰值電流模式，具有內(nèi)部補(bǔ)償\n \n200kHz 至 2.2MHz 可選頻率\n \;

TI

德州儀器

絲印：538；Package：VQFN-HR；TPS54538 3.8V to 28V, 5A, Synchronous Buck Converter With User Selectable Mode

1 Features ? Configured for a wide range of applications – 3.8V to 28V input voltage range – 0.6V to 22V output voltage range – Up to 5A continuous output current – 0.6V ±1% reference voltage (–40°C to 150°C) – 70ns and 114ns minimum switching on and offtime – 8us maximum switching on-t

文件：2.31814 Mbytes 頁(yè)數(shù)：44 Pages

TI

德州儀器

絲?。?a target="_blank" title="Marking" href="/538/marking.html">538；Package：VQFN-HR；TPS54x38 3.8V to 28V, 5A, 4A, 3A, Synchronous Buck Converter With User Selectable Mode

1 Features ? Configured for a wide range of applications – 3.8V to 28V input voltage range – 0.6V to 22V output voltage range – Up to 5A (TPS54538), 4A (TPS54438), 3A (TPS54338) continuous output current – 0.6V ±1% reference voltage (–40°C to 150°C) – 70ns and 114ns minimum switching on

文件：2.35593 Mbytes 頁(yè)數(shù)：46 Pages

TI

德州儀器