日前，德州儀器(TI) 宣布推出最新系列穩(wěn)壓器，其可在不影響效率及電源性能的情況下，提供業(yè)界最低噪聲的1 A 開關(guān)電源，從而可充分滿足當(dāng)前噪聲敏感型醫(yī)療、工業(yè)以及電信設(shè)計(jì)在峰值性能下正常工作而對(duì)平穩(wěn)安靜電源的需求。TI QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" 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title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply" title="QuietSupply">QuietSupply™ 穩(wěn)壓器系列的首款產(chǎn)品TPS54120 與其它電源轉(zhuǎn)換器件相比，可將開關(guān)噪聲銳降達(dá)99%，并可幫助最大限度提高精確數(shù)據(jù)轉(zhuǎn)換器與放大器以及靈敏時(shí)鐘分配電路的性能，充分滿足電信、測(cè)試設(shè)備以及高端音頻視頻設(shè)備等應(yīng)用的使用需求。更多詳情，敬請(qǐng)?jiān)L問：www.ti.com.cn/product/cn/tps54120 。

TPS54120 的主要特性與優(yōu)勢(shì)

·        99% 的噪聲降低：100 Hz 至100 kHz 時(shí)為9 µVRMS，100 Hz 至1 MHz 時(shí)為17 µVRMS；

·        高性能：高電源抑制比(PSRR)，10 kHz 時(shí)為83 db，100 kHz 時(shí)為70 dB；

·        高設(shè)計(jì)靈活性：同步于200 kHz 至1.2 MHz 的外部時(shí)鐘；

·        4.5 V 至17 V 的寬泛輸入電壓，可調(diào)輸出為0.8 V 至6.0 V。

安靜的電源管理

除TPS54120 外，TI 還提供支持低噪聲、寬泛輸入電壓與高PSRR 性能的豐富低壓降線性穩(wěn)壓器(LDO)，如TPS7A8101、TPS7A3001、TPS7A4901 以及超低噪聲LP5900 與LP8900 穩(wěn)壓器等。此外，完整的參考設(shè)計(jì)與評(píng)估板可加速產(chǎn)品上市進(jìn)程。   

供貨情況

采用散熱增強(qiáng)型4 毫米 x 4 毫米、20 引腳QFN 或TSSOP 封裝的TPS54120 現(xiàn)已開始批量供貨，可通過TI 及其授權(quán)分銷商進(jìn)行訂購。簡單易用的TPS54120EVM-103 包含支持內(nèi)部散熱與電流限制關(guān)斷的低噪聲1 A 解決方案所需的所有外部組件、電源狀態(tài)良好輸出監(jiān)控器、跟蹤以及啟用／禁用電路系統(tǒng)。

查閱有關(guān)TI LDO 系列、應(yīng)用手冊(cè)以及評(píng)估板的更多詳情：

·        新版LDO 快速參考指南涵蓋National 與TI 合并后的LDO 產(chǎn)品系列；

·        使用TI 線性穩(wěn)壓器的易用型應(yīng)用設(shè)計(jì)手冊(cè)海量庫；

·         有關(guān)TI LDO 的系列視頻；

·        通過TI在線技術(shù)支持社區(qū)咨詢問題，并幫助解決技術(shù)難題：www.deyisupport.com。