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  17V Input, Dual 1A Output Synchronous Step-Down Regulator with Ultralow Quiescent Current &mdash DN537
  PDF, 164 Kb, Archivo publicado: feb 12, 2015
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  17V Input, Dual 1A Output Synchronous Step-Down
  Regulator with Ultralow Quiescent Current
  Design Note 537
  Haoran Wu
  Introduction
  The LTC В®3622 dual 1A synchronous monolithic stepdown regulator enables compact, high efficiency supplies for battery powered systems and portable devices
  as well as general purpose point-of-load regulation.
  The tiny 14-pin, 3mm Г— 4mm DFN package takes input
  voltages from 2.7V to 17V, producing two adjustable
  В±1% accurate outputs from 0.6V to VIN while delivering
  up to 1A output current on both channels. The two channels can operate in phase or with 180В°
  phase shift, selected by tying the PHASE pin to GND
  or INTVCC. This provides users the flexibility to
  separate the channels’ switching edges to minimize
  any noise coupling. There are two peak current limit
  levels for the LTC3622 – 1.8A or 1A, selected via the
  ILIM pin. This selectable current limit allows smaller
  size inductors in lower current designs to minimize
  solution size and cost. The LTC3622’s quiescent current with both channels
  enabled is as low as 5ВµA in Burst Mode В® operation
  and less than 0.1ВµA in shutdown. The switching
  frequency is fixed at 1MHz or 2.25MHz with a В±50%
  synchronization range to an external clock. Selectable …

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Clasificación del fabricante

• Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | Micropower Buck Regulators | Internal Power Switch Buck

Otros nombres:

LTC3622EDE-2TRPBF, LTC3622EDE-2 TRPBF, LTC3622EDE2#TRPBF, LTC3622EDE 2#TRPBF