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LP38513

現行

具電源良好與啟用功能且適用 1.8 V 的 3-A 超低壓降電壓穩壓器

產品詳細資料

Rating Catalog Vin (max) (V) 5.5 Vin (min) (V) 2.25 Iout (max) (A) 3 Output options Fixed Output Vout (max) (V) 1.8 Vout (min) (V) 1.8 Fixed output options (V) 1.8 Noise (µVrms) 45 PSRR at 100 KHz (dB) 29 Iq (typ) (mA) 10 Features Enable, Power good Thermal resistance θJA (°C/W) 31.9, 32, 32.9 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 425 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 5.5 Vin (min) (V) 2.25 Iout (max) (A) 3 Output options Fixed Output Vout (max) (V) 1.8 Vout (min) (V) 1.8 Fixed output options (V) 1.8 Noise (µVrms) 45 PSRR at 100 KHz (dB) 29 Iq (typ) (mA) 10 Features Enable, Power good Thermal resistance θJA (°C/W) 31.9, 32, 32.9 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 425 Operating temperature range (°C) -40 to 125
TO-220 (NDH) 5 86.0552 mm² 10.16 x 8.47 TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • Input Supply Voltage 2.25 V to 5.5 V
  • Conversions from 2.5-V Rail to 1.8-V Rail
  • Stable with Ceramic Capacitors
  • Low Ground Pin Current
  • Load Regulation of 0.1% for 10 mA to 3-A Load Current
  • 60-μA Typical Quiescent Current in Shutdown Mode
  • Specified Output Current of 3 A
  • Specified VOUT Accuracy of ±2.6% With
    TJ from 0°C to +125°C
  • ERROR Flag Indicates VOUT Status
  • Overtemperature and Overcurrent Protection
  • −40°C to +125°C Operating TJ Range
  • Input Supply Voltage 2.25 V to 5.5 V
  • Conversions from 2.5-V Rail to 1.8-V Rail
  • Stable with Ceramic Capacitors
  • Low Ground Pin Current
  • Load Regulation of 0.1% for 10 mA to 3-A Load Current
  • 60-μA Typical Quiescent Current in Shutdown Mode
  • Specified Output Current of 3 A
  • Specified VOUT Accuracy of ±2.6% With
    TJ from 0°C to +125°C
  • ERROR Flag Indicates VOUT Status
  • Overtemperature and Overcurrent Protection
  • −40°C to +125°C Operating TJ Range

The LP38513 fast-response ultra-low dropout linear regulator operates from a 2.25-V to 5.5-V input supply. This device responds very quickly to step changes in line or load conditions, making it suitable for low-voltage microprocessor applications. Developed on a CMOS process, with a PMOS pass transistor, the LP38513 has low quiescent-current operation independent of the output load current. Ground Pin Current: Typically 12 mA at 3-A load current.Disable Mode: Typically 60 µA quiescent current when the enable (EN) pin is pulled low.ERROR Flag: The ERROR flag goes low if VOUT falls more than typically 15% below the nominal value.Precision Output Voltage: A specified VOUT accuracy of ±2.6% with TJ from 0°C to 125°C.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP38513 fast-response ultra-low dropout linear regulator operates from a 2.25-V to 5.5-V input supply. This device responds very quickly to step changes in line or load conditions, making it suitable for low-voltage microprocessor applications. Developed on a CMOS process, with a PMOS pass transistor, the LP38513 has low quiescent-current operation independent of the output load current. Ground Pin Current: Typically 12 mA at 3-A load current.Disable Mode: Typically 60 µA quiescent current when the enable (EN) pin is pulled low.ERROR Flag: The ERROR flag goes low if VOUT falls more than typically 15% below the nominal value.Precision Output Voltage: A specified VOUT accuracy of ±2.6% with TJ from 0°C to 125°C.

For all available packages, see the orderable addendum at the end of the data sheet.

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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet LP38513 3-A Fast Response Ultra-Low Dropout Linear Regulator datasheet (Rev. E) PDF | HTML 2015年 11月 19日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 2018年 3月 21日

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)。

參考設計

TIDA-00826 — 50 Ohm 2 GHz 示波器前端參考設計

此參考設計為 50Ω 輸入示波器應用類比前端的一部分。系統設計師可以輕鬆使用此評估平台,在頻域和時域應用中處理從 DC 至 2GHz 的輸入訊號。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00359 — 適用於 GSPS ADC 的時鐘解決方案參考設計

適用於 GSPS 資料轉換器的低成本、高性能時脈解決方案。此參考設計探討 TRF3765 的使用,這是一款低雜訊頻率合成器,可為 4GSPS 類比轉數位轉換器 (ADC12J4000) 產生取樣時脈。實驗展示了產品規格表可比較的 SNR 和 SFDR 性能。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
TO-220 (NDH) 5 Ultra Librarian
TO-263 (KTT) 5 Ultra Librarian

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  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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