Datasheet Linear Technology LT1371IR#PBF — Даташит

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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Другие варианты исполнения

LT1371HV

Application Notes

• Скачать
  Circuitry for Signal Conditioning and Power Conversion &mdash AN75
  PDF, 508 Кб, Файл опубликован: 1 мар 1999
  This publication includes designs for data converters and signal conditioners, transducer circuits, crystal oscillators and power converters. Wideband and micropower circuitry receive special attention. Tutorials on micropower design techniques and parasitic effects of test equipment are included.
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  Application Note 75
  March 1999
  Circuitry for Signal Conditioning and
  Power Conversion
  Designs From a Once Lazy Sabbatical
  Jim Williams
  Introduction
  Linear Technology has a sabbatical program. Every five
  years employees are granted sabbatical leave, which may
  last up to six weeks. You have 18 months from each five
  year employment anniversary to take the leave. Sabbatical
  is fully company paid and has no restrictions. The time is
  yours to do with as you please.
  People exercise all degrees of freedom with their sabbaticals. They go sailing, they go to South Sea islands, they ski
  some mountain nobody ever heard of, they trek in Nepal.
  Houses get fixed, cars restored and children played with.
  For my third sabbatical I resolved to do absolutely nothing.
  For the first time in my life I was really tired, and I knew it.
  A six week rest sounded just fine. I’d walk the dog and
  spend time with my wife and son. That’s it. No transistors,
  no resistors, no op amps and, above all, no writing. I was
  so written out the thought of picking up a pencil produced
  an instant headache. …

Design Notes

• Скачать
  Monolithic DC/DC Converters Break Speed Limits to Shrink Board Space &mdash DN125
  PDF, 80 Кб, Файл опубликован: 2 мар 1996
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  advertisement Monolithic DC/DC Converters Break 1MHz to
  Shrink Board Space – Design Note 125
  Mitchell Lee
  In the never-ending quest for board space, operating
  frequency remains the most important variable in a
  DC/DC converter design. Higher frequency equates
  with smaller coils and capacitors. A new family of fast
  monolithic converters that allows circuit designers to
  reduce the size of their п¬Ѓnished products is now available. Other improvements include quiescent currents
  well below those of slower converters and a new switchdrive technique that reduces dynamic losses by at least
  four fold over previous methods, virtually eliminating
  these losses as a concern in efficiency calculations.
  Table 1 shows the salient features of each member of
  the family. Each is configured as a grounded-switch
  step-up converter, but is equally useful in positive
  and negative high efficiency buck, SEPIC, inverting
  and flyback circuits. The converters are all based
  on the LT В®1372 design, which operates at 500kHz,
  draws 4mA quiescent current and contains a 1.5A,
  0.5О© switch. The LT1371 is designed for higher
  power applications, with a 3A, 0.25О© switch. Supply
  current and operating frequency remain unchanged.
  Reduced quiescent current (1mA) makes the LT1373 …

• Скачать
  High Power CCFL Backlight Inverter for Desktop LCD Displays &mdash DN164
  PDF, 98 Кб, Файл опубликован: 3 сен 1997
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  High Power CCFL Backlight Inverter for Desktop LCD Displays
  Design Note 164
  Jim Williams
  Large LCD (liquid crystal display) displays designed to
  replace CRTs (cathode ray tubes) in desktop computer
  applications are becoming available. The LCD’s reduced
  size and power requirements allow much smaller product
  size, a highly desirable feature.
  CRT replacement requires a 10W to 20W inverter to drive
  the CCFL (cold cathode fluorescent lamp) that illuminates
  the LCD. Additionally, the inverter must provide the wide dimming range associated with CRTs, and it must have
  safety features to prevent catastrophic failures.
  Figure 1’s circuit meets these requirements. It is a
  modified, high power variant of an approach employed
  in laptop computer displays1. T1, Q1, Q2 and associated components form a current fed, resonant Royer
  L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks
  of Linear Technology Corporation. All other trademarks are the property of their
  respective owners. 36pF
  LAMP
  8 2A
  SB 11 5 1 6 12V 36pF
  T1
  3 2 LAMP 0.15ОјF* …

• Скачать
  The LT1370: A 500kHz, 6A Monolithic Boost Converter &mdash DN183
  PDF, 78 Кб, Файл опубликован: 1 июл 1998
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  advertisement A 500kHz, 6A Monolithic Boost Converter – Design Note 183
  Karl Edwards Circuit Description
  The LT1370 is a current mode switcher. This means that
  switch duty cycle is directly controlled by the switch
  current rather than by the output voltage. This technique has several advantages: immediate response to
  input voltage variations, greatly simplified closed-loop
  frequency compensation, and pulse-by-pulse current
  limiting, which provides maximum switch protection.
  An internal low dropout regulator provides a 2.3V supply
  to all control circuitry. This low dropout design allows
  the input voltage to vary from 2.7V to 30V with virtually
  no change in device performance. An internal 500kHz
  oscillator is the basic clock for all timing. A bandgap
  provides the reference for the feedback error amplifier.
  As with the LT1371, error amplifier circuitry allows the
  LT1370 to directly regulate negative output voltages.
  The NFB pin regulates at –2.48V, while the amplifier’s
  output internally drives the FB pin to 1.245V. The error
  amplifier is a current output (gm) type, so its output
  voltage, present on the VC pin, can be externally clamped
  to lower the current limit. A capacitor-coupled external
  clamp provides soft start.
  The S/S pin has two functions: synchronization and …

Модельный ряд

Классификация производителя

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

Варианты написания:

LT1371IRPBF, LT1371IR PBF