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 開關電源，從而可充分滿足當前噪聲敏感型醫(yī)療、工業(yè)以及電信設計在峰值性能下正常工作而對平穩(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)壓器系列的首款產品TPS54120 與其它電源轉換器件相比，可將開關噪聲銳降達99%，并可幫助最大限度提高精確數據轉換器與放大器以及靈敏時鐘分配電路的性能，充分滿足電信、測試設備以及高端音頻視頻設備等應用的使用需求。更多詳情，敬請訪問：www.ti.com.cn/product/cn/tps54120 。

TPS54120 的主要特性與優(yōu)勢

·        99% 的噪聲降低：100 Hz 至100 kHz 時為9 µVRMS，100 Hz 至1 MHz 時為17 µVRMS；

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

·        高設計靈活性：同步于200 kHz 至1.2 MHz 的外部時鐘；

·        4.5 V 至17 V 的寬泛輸入電壓，可調輸出為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，完整的參考設計與評估板可加速產品上市進程。   

供貨情況

采用散熱增強型4 毫米 x 4 毫米、20 引腳QFN 或TSSOP 封裝的TPS54120 現已開始批量供貨，可通過TI 及其授權分銷商進行訂購。簡單易用的TPS54120EVM-103 包含支持內部散熱與電流限制關斷的低噪聲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。

查閱有關TI LDO 系列、應用手冊以及評估板的更多詳情：

·        新版LDO 快速參考指南涵蓋National 與TI 合并后的LDO 產品系列；

·        使用TI 線性穩(wěn)壓器的易用型應用設計手冊海量庫；

·         有關TI LDO 的系列視頻；

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