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Корпус / Упаковка / Маркировка

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Экологический статус

Design Notes

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  Robust 140V VIN, 400mA Step-Down Regulator for Industrial, Telecom and Automotive Environments &mdash DN543
  PDF, 173 Кб, Файл опубликован: 19 авг 2015
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  Robust 140V VIN, 400mA Step-Down Regulator for Industrial,
  Telecom and Automotive Environments
  Design Note 543
  Mike Shriver
  The LTC В®7138 is a 400mA step-down regulator that
  can operate over an input voltage range of 4V to 140V,
  ideal for industrial, telecom, automotive and other
  applications subject to harsh line transients. Due to
  the regulator’s hysteretic architecture, no external
  compensation is required. The output voltage is pinprogrammable to 1.8V, 3.3V or 5.0V, or if an external
  divider is used, the output can be adjusted from 0.8V
  to VIN. 100% duty cycle operation is possible because
  of the internal P-channel FET. The LTC7138 is offered
  in a thermally enhanced high voltage (skipped pins)
  MSOP package.
  Simple 5V/400mA Buck with Wide VIN Range
  Figure 1 shows a 5V buck converter with a maximum
  input voltage of 140V using only four external
  components. Its output is set to 5V by tying the VPRG1
  pin to the SS pin and the VPRG2 pin to ground. It does
  not require any external compensation.
  Efficiency remains high over a broad range of loads
  due in part to the LTC7138’s Burst ModeВ® operation …

Модельный ряд

Классификация производителя

• Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck | High Input Voltage Buck
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

Варианты написания:

LTC7138HMSEPBF, LTC7138HMSE PBF