Datasheet Linear Technology LT3758AEDD#TRPBF — 数据表

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• 下载
  2-Wire Virtual Remote Sensing for Voltage Regulators - Clairvoyance Marries Remote Sensing &mdash AN126
  PDF, 1.4 Mb, 档案已发布: Oct 1, 2010
  Wires and connectors have resistance. This simple, unavoidable truth dictates that a power source’s remote load voltage will be less than the source’s output voltage. Traditional methods for countering this include increasing the power source voltage and "4-wire" remote voltage sensing. Both have limitations. A new IC based approach achieves "virtual" remote sensing at the load without adding the usual two extra sense wires. Numerous circuit examples show the IC working with various voltage regulators and remote loads. Appendices detail IC internal operation and design guidelines for applying the part in any regulator circuit.
  从文件中提取

  Application Note 126
  October 2010
  2-Wire Virtual Remote Sensing for Voltage Regulators
  Clairvoyance Marries Remote Sensing
  Jim Williams, Jesus Rosales, Kurk Mathews, Tom Hack
  Introduction
  Wires and connectors have resistance. This simple, unavoidable truth dictates that a power source’s remote load
  voltage will be less than the source’s output voltage. Figure 1
  shows this, and implies that intended load voltage can
  be maintained by raising regulator output. Unfortunately,
  line resistance and load variations introduce uncertainties,
  limiting achievable performance.
  WIRING DROPS POWER
  SUPPLY LOAD
  AN125 F01 WIRING DROPS Figure 1. Unavoidable Wiring Drops Cause Low Load
  Voltage. Line and Load Resistance Variations Introduce
  Additional Load Voltage Uncertainty, Mitigating Against
  Compensation by Raising Supply Voltage LOAD
  VOLTAGE
  REGULATOR POWER
  SUPPLY LOAD
  AN125 F02 Figure 2. Local Regulation Stabilizes
  Load Voltage But is Inefп¬Ѓcient VOUT+ VOLTAGE DROP Figure 2 illustrates one compensatory approach. Locally …

文章

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  Two New Controllers for Boost, Flyback, SEPIC and Inverting DC/DC Converters Accept Inputs up to 100V &mdash LT Journal
  PDF, 457 Kb, 档案已发布: Jun 1, 2009
  从文件中提取

  LINEAR TECHNOLOGY JUNE 2009 IN THIS ISSUE…
  COVER ARTICLE
  Two New Controllers for Boost,
  Flyback, SEPIC and Inverting DC/DC
  Converters Accept Inputs up to 100V
  .1
  Wei Gu Linear in the News….2
  DESIGN FEATURES
  Charge Li-Ion Batteries Directly
  from High Voltage Automotive
  and Industrial Supplies Using
  Standalone Charger in a
  3mm Г— 3mm DFN.5
  Jay Celani Power Management IC Combines
  USB On-The-Go and USB Charging
  in Compact Easy-to-Use Solution.8
  George H. Barbehenn and Sauparna Das Power Management IC with
  Pushbutton Control Generates
  Six Voltage Rails from USB or
  2 AA Cells Via Low Loss
  PowerPathв„ў Topology.12
  John Canfield Improve Hot Swap Performance and
  Save Design Time with Hot Swapв„ў …

模型线

制造商分类

• Power Management > Switching Regulator > SEPIC Regulators | Flyback, Forward and Isolated Controllers | Inverting Regulators
• Power Management > Switching Regulator > Step-Up (Boost) Regulators > External Power Switch Boost
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

其他名称:

LT3758AEDDTRPBF, LT3758AEDD TRPBF