Datasheet Linear Technology LT8410 — Даташит

Datasheets

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Экологический статус

Другие варианты исполнения

LT8410-1

Design Notes

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  Ultralow Power Boost Converters Require Only 8.5ОјA of Standby Quiescent Current &mdash DN465
  PDF, 83 Кб, Файл опубликован: 9 апр 2009
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  Ultralow Power Boost Converters Require Only 8.5ВµA of Standby
  Quiescent Current
  Design Note 465
  Xiaohua Su
  Introduction
  Industrial remote monitoring systems and keep-alive
  circuits spend most of their time in standby mode. Many
  of these systems also depend on battery power, so power
  supply efficiency in standby state is very important to
  maximize battery life. The LT®8410/-1 high efficiency
  boost converter is ideal for these systems, requiring
  only 8.5ОјA of quiescent current in standby mode. The
  device integrates high value (12.4M/0.4M) output feedback resistors, significantly reducing input current when
  the output is in regulation with no load. Other features
  include an integrated 40V switch and Schottky diode,
  output disconnect with current limit, built in soft-start,
  overvoltage protection and a wide input range, all in a
  tiny 8-pin 2mm Г— 2mm DFN package.
  Application Example
  Figure 1 details the LT8410 boost converter generating a 16V output from a 2.5V-to-16V input source. The
  LT8410/-1 controls power delivery by varying both the
  peak inductor current and switch off time. This control
  scheme results in low output voltage ripple as well as high efп¬Ѓciency over a wide load range. Figures 2 and 3 show …

Статьи

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  Ultralow Power Boost Converters Require Only 8.5µA of Standby Quiescent Current &mdash LT Journal
  PDF, 263 Кб, Файл опубликован: 1 июн 2009
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  L DESIGN IDEAS Ultralow Power Boost Converters
  Require Only 8.5ВµA of Standby
  by Xiaohua Su
  Quiescent Current
  Introduction Application Example
  Figure 1 details the LT8410 boost
  converter generating a 16V output
  from a 2.5V-to-16V input source. The
  LT8410/-1 controls power delivery by
  varying both the peak inductor current and switch off time. This control
  scheme results in low output voltage
  ripple as well as high efficiency over a
  wide load range. Figures 2 and 3 show
  efficiency and output peak-to-peak
  ripple for Figure 1’s circuit. Output
  ripple voltage is less than 10mV despite the circuit’s small (0.1µF) output
  capacitor.
  The soft-start feature is implemented by connecting an external
  capacitor to the VREF pin. If soft-start
  is not needed, the capacitor can be
  removed. Output voltage is set by a
  resistor divider from the VREF pin to
  ground with the center tap connected …

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  Boost Converters for Keep-Alive Circuits Draw Only 8.5µA of Quiescent Current &mdash LT Journal
  PDF, 670 Кб, Файл опубликован: 1 мар 2009
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  L DESIGN FEATURES Boost Converters for Keep-Alive
  Circuits Draw Only 8.5ОјA of
  by Xiaohua Su
  Quiescent Current
  Introduction
  Industrial remote monitoring systems
  and keep-alive circuits spend most of
  their time idle. Many of these systems
  use batteries, so to maximize run time
  power losses,even during low power
  idle modes, must be minimized. Even
  at no load, power supplies draw some
  current to produce a regulated voltage
  for keep-alive circuits.
  The LT8410/-1 DC/DC boost
  converter features ultralow quiescent
  current and integrated high value
  feedback resistors to minimize the
  draw on the battery when electronics
  are idle.
  An entire boost converter takes very
  little space, as shown in Figure 1. Ultralow Quiescent Current
  Low Noise Boost Converter …

Модельный ряд

Классификация производителя

• Power Management > Switching Regulator > Step-Up (Boost) Regulators > Micropower Boost | Internal Power Switch Boost