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線性與低壓差 (LDO) 穩壓器

LP38511

現行

具電源良好和啟用功能的 800-mA、低壓降電壓穩壓器

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TPS746 現行 具有電源良好指示和啟用功能的 1A、低 IQ、高準確度、可調整超低壓差電壓穩壓器 Lower dropout and better accuracy in a smaller package

LP38511

現行
產品規格表 立即訂購

產品詳細資料

Output options Fixed Output Iout (max) (A) 0.8 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 1.8 Vout (min) (V) 1.8 Fixed output options (V) 1.8 Noise (µVrms) 75 Iq (typ) (mA) 7.5 Thermal resistance θJA (°C/W) 60 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 42 Dropout voltage (Vdo) (typ) (mV) 260 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.8 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 1.8 Vout (min) (V) 1.8 Fixed output options (V) 1.8 Noise (µVrms) 75 Iq (typ) (mA) 7.5 Thermal resistance θJA (°C/W) 60 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 42 Dropout voltage (Vdo) (typ) (mV) 260 Operating temperature range (°C) -40 to 125
TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24 TO-263 (NDQ) 5 142.3416 mm² 10.16 x 14.01
  • 2.25V to 5.5V Input Voltage Range
  • 1.8V Fixed Output Voltage
  • 800 mA Output Load Current
  • +/- 2.5% VOUT Accuracy over Line, Load, and Full-Temperature Range from -40°C to +125°C
  • Stable with tiny 10 µF Ceramic Capacitors
  • 0.20% Output Voltage Load Regulation from 10 mA to 800 mA
  • Enable pin
  • Error Flag Indicates Status of Output Voltage
  • 1 µA of Quiescent Current in Shutdown
  • 40dB of PSRR at 100 kHz
  • Over-Temperature and Over-Current Protection
  • DDPAK/TO-263 and PFM Surface Mount Packages

All trademarks are the property of their respective owners.

  • 2.25V to 5.5V Input Voltage Range
  • 1.8V Fixed Output Voltage
  • 800 mA Output Load Current
  • +/- 2.5% VOUT Accuracy over Line, Load, and Full-Temperature Range from -40°C to +125°C
  • Stable with tiny 10 µF Ceramic Capacitors
  • 0.20% Output Voltage Load Regulation from 10 mA to 800 mA
  • Enable pin
  • Error Flag Indicates Status of Output Voltage
  • 1 µA of Quiescent Current in Shutdown
  • 40dB of PSRR at 100 kHz
  • Over-Temperature and Over-Current Protection
  • DDPAK/TO-263 and PFM Surface Mount Packages

All trademarks are the property of their respective owners.

The LP38511-1.8 Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38511-1.8 uses a proprietary control loop that enables extremely fast response to change in line conditions and load demands. Output Voltage DC accuracy is specified at ±2.5% over line, load and full temperature range from -40°C to +125°C. The LP38511-1.8 is designed for inputs from the 2.5V, 3.3V, and 5.0V rail, is stable with 10uF ceramic capacitors, and has a fixed 1.8V output. An Error Flag feature monitors the output voltage and notifies the system processor when the output voltage falls more than 15% below the nominal value. The LP38511-1.8 provides excellent transient performance to meet the demand of high performance digital core ASICs, DSPs, and FPGAs found in highly-intensive applications such as servers, routers/switches, and base stations.

The LP38511-1.8 Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38511-1.8 uses a proprietary control loop that enables extremely fast response to change in line conditions and load demands. Output Voltage DC accuracy is specified at ±2.5% over line, load and full temperature range from -40°C to +125°C. The LP38511-1.8 is designed for inputs from the 2.5V, 3.3V, and 5.0V rail, is stable with 10uF ceramic capacitors, and has a fixed 1.8V output. An Error Flag feature monitors the output voltage and notifies the system processor when the output voltage falls more than 15% below the nominal value. The LP38511-1.8 provides excellent transient performance to meet the demand of high performance digital core ASICs, DSPs, and FPGAs found in highly-intensive applications such as servers, routers/switches, and base stations.
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類型 標題 日期
* Data sheet LP38511-1.8 800mA Fast-Trans Resp Low-Drpot Linear VReg w/Error Flag datasheet (Rev. E) 2013年 4月 4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
EVM User's guide AN-1675 LP38511TS-1.8 Evaluation Board (Rev. A) 2013年 4月 24日
EVM User's guide AN-1770 LP38511MR-ADJ Evaluation Board (Rev. B) 2013年 4月 24日
EVM User's guide AN-1801 LP38511TJ-ADJ Evaluation Board (Rev. B) 2013年 4月 24日

設計與開發

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開發板

LP38511TS-1.8EV — 具有錯誤標記的 LP38511TS-1.8 800mA 快速瞬態響應 LDO 評估板

This board is designed to enable the evaluation of the LP38511TS-1.8 voltage regulator.

使用指南: PDF
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