Datasheet Linear Technology LT8650SEV#PBF — Даташит

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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Design Notes

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  Dual Channel 42V, 4A Monolithic Synchronous Step-Down Silent Switcher 2 with 6.2ОјA Quiescent Current &mdash DN1044
  PDF, 403 Кб, Файл опубликован: 14 ноя 2017
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  Design Note
  Dual Channel 42V, 4A Monolithic Synchronous Step-Down Silent
  Switcher 2 with 6.2ВµA Quiescent Current
  Hua (Walker) Bai
  Introduction
  The LTВ®8650S 42V, dual channel, 4A, synchronous Silent
  SwitcherВ®2 regulator features a wide input voltage range of
  3V to 42V, ideal for automotive, industrial and other stepdown applications. Its quiescent current is only 6.2ВµA, with
  the outputs in regulation, a critical feature in automotive
  environments, where always-on systems can drain the
  battery even when the car is not running. EMI can be, and
  a problem if overlooked in the board layout. The Silent
  Switcher 2 design of the LT8650S can save the day when
  it comes to passing stringent automotive EMI standards,
  since layout becomes less critical than in other designs. excursions. Switching is at 2MHz, which allows higher loop
  bandwidth and faster transient response.
  Figure 2 shows the output response to a 0A to 4A load step,
  where VOUT drops less than 100mV for both the 3.3V and
  7.5V outputs. This response is combined with high initial
  accuracy for a solution that meets tight VOUT tolerances. 3.3V OUTPUT (AC)
  100mV/DIV
  7.5V OUTPUT (AC)
  100mV/DIV 7.5V/4A and 3.3V/4A Outputs Have Fast Transient …

Статьи

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  High Power Monolithic Silent Switcher 2 Regulators Meet CISPR 25 Class 5 EMI, Fit Tight Spaces &mdash LT Journal
  PDF, 3.5 Мб, Файл опубликован: 3 янв 2018
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  Journal of Power Management
  January 2018 I N T H I S Volume 1 Number 1
  I S S U E 2MHz buck-boost controller
  drives LED headlight
  cluster, meets CISPR 25
  Class 5 EMI 11 the refulator: precision
  voltage reference is High Power Monolithic Silent
  Switcher 2 Regulators Meet CISPR
  25 Class 5 EMI, Fit Tight Spaces
  Hua (Walker) Bai, Dong Wang and Ying Cheng an accurate low noise
  regulator for 200mA loads
  17 in your pocket white noise
  generator for quickly
  testing circuit signal
  response 26 As the quantity of electronic systems in automobiles multiplies, so
  does the risk of intra-vehicle electromagnetic interference. For this
  reason, electronics in modern vehicles often must meet the CISPR
  25 Class 5 test standard, which stringently limits conducted and
  radiated emissions. Switching power supplies, by their very nature,
  are rife with EMI, and proliferate throughout an automobile. Low
  EMI is now a key requirement for automobile power supplies, along
  with small solution size, high
  efficiency, thermal proficiency, …

Модельный ряд

Классификация производителя

• Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck | Micropower Buck Regulators | High Input Voltage Buck
• Power Management > Switching Regulator > Ultralow Noise Regulators

Варианты написания:

LT8650SEVPBF, LT8650SEV PBF