LM2991QML

現行

負低壓降可調式穩壓器

產品詳細資料

Rating Military Vin (max) (V) 0.3 Vin (min) (V) -26 Iout (max) (A) 1 Output options Adjustable Output Vout (max) (V) -3 Vout (min) (V) -24 Fixed output options (V) 0 Noise (µVrms) 200 PSRR at 100 KHz (dB) 22 Iq (typ) (mA) 0.7 Features Enable Thermal resistance θJA (°C/W) 28 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -55 to 125
Rating Military Vin (max) (V) 0.3 Vin (min) (V) -26 Iout (max) (A) 1 Output options Adjustable Output Vout (max) (V) -3 Vout (min) (V) -24 Fixed output options (V) 0 Noise (µVrms) 200 PSRR at 100 KHz (dB) 22 Iq (typ) (mA) 0.7 Features Enable Thermal resistance θJA (°C/W) 28 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -55 to 125
CFP (NAC) 16 62.9285 mm² (— mm × — mm) DIESALE (Y) See data sheet WAFERSALE (YS) See data sheet

  • Output voltage adjustable from −2V to −25V
  • Output current in excess of 1A
  • Dropout voltage typically 0.6V at 1A load
  • Low quiescent current
  • Internal short circuit current limit
  • Internal thermal shutdown with hysteresis
  • TTL, CMOS compatible ^ON/OFF switch
  • Functional complement to the LM2941 series

  • Output voltage adjustable from −2V to −25V
  • Output current in excess of 1A
  • Dropout voltage typically 0.6V at 1A load
  • Low quiescent current
  • Internal short circuit current limit
  • Internal thermal shutdown with hysteresis
  • TTL, CMOS compatible ^ON/OFF switch
  • Functional complement to the LM2941 series

  • The LM2991 is a low dropout adjustable negative regulator with a output voltage range between −2V to −25V. The LM2991 provides up to 1A of load current and features a ^On /Off pin for remote shutdown capability.

    The LM2991 uses new circuit design techniques to provide a low dropout voltage, low quiescent current and low temperature coefficient precision reference. The dropout voltage at 1A load current is typically 0.6V and a guaranteed worst-case maximum of 1V over the entire operating temperature range. The quiescent current is typically 1 mA with a 1A load current and an input-output voltage differential greater than 3V. A unique circuit design of the internal bias supply limits the quiescent current to only 9 mA (typical) when the regulator is in the dropout mode (VO − VI  3V).

    The LM2991 is short-circuit proof, and thermal shutdown includes hysteresis to enhance the reliability of the device when inadvertently overloaded for extended periods.


    The LM2991 is a low dropout adjustable negative regulator with a output voltage range between −2V to −25V. The LM2991 provides up to 1A of load current and features a ^On /Off pin for remote shutdown capability.

    The LM2991 uses new circuit design techniques to provide a low dropout voltage, low quiescent current and low temperature coefficient precision reference. The dropout voltage at 1A load current is typically 0.6V and a guaranteed worst-case maximum of 1V over the entire operating temperature range. The quiescent current is typically 1 mA with a 1A load current and an input-output voltage differential greater than 3V. A unique circuit design of the internal bias supply limits the quiescent current to only 9 mA (typical) when the regulator is in the dropout mode (VO − VI  3V).

    The LM2991 is short-circuit proof, and thermal shutdown includes hysteresis to enhance the reliability of the device when inadvertently overloaded for extended periods.


    下載 觀看有字幕稿的影片 影片

    技術文件

    找不到結果。請清除您的搜尋條件,然後再試一次。
    檢視所有 2
    重要文件 類型 標題 格式選項 下載最新的英文版本 日期
    * 資料表 LM2991QML Negative Low Dropout Adjustable Regulator datasheet (Rev. A) 2011/10/5
    * SMD LM2991QML SMD 5962-96505 2016/6/21

    設計與開發

    如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

    封裝 針腳 CAD 符號、佔位空間與 3D 模型
    CFP (NAC) 16 Ultra Librarian
    DIESALE (Y) Ultra Librarian
    WAFERSALE (YS) Ultra Librarian

    訂購與品質

    建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

    支援與培訓

    內含 TI 工程師技術支援的 TI E2E™ 論壇

    內容係由 TI 和社群貢獻者依「現狀」提供,且不構成 TI 規範。檢視使用條款

    若有關於品質、封裝或訂購 TI 產品的問題,請參閱 TI 支援。​​​​​​​​​​​​​​

    影片