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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Design Notes

• Скачать
  USB Power Solution Includes Switching Power Manager, Battery Charger, Three Synchronous Buck Regulators and LDO &mdash DN420
  PDF, 84 Кб, Файл опубликован: 13 июл 2007
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  USB Power Solution Includes Switching Power Manager,
  Battery Charger, Three Synchronous Buck Regulators and LDO
  Design Note 420
  Brian Shaffer
  Introduction
  Linear Technology offers a variety of parts to simplify the
  task of extracting power from a battery or a USB cable. These
  devices seamlessly manage the power flow between an
  AC adapter, USB cable and Li-Ion battery, all while maintaining USB power specification compliance. As battery
  capacities rise, battery chargers must keep pace by
  steadily improving efficiency to minimize thermal concerns
  and charge times. A USB-based battery charger must
  squeeze as much power from the USB as possible, and
  do it efficiently to meet the stringent space and thermal
  constraints of today’s power-intensive applications.
  The LTCВ® 3555 combines a USB switching power manager
  and battery charger with three synchronous buck regulators and an LDO to provide a complete power supply
  solution in one small (4mm Г— 5mm) package (Figure 1).
  The constant-current, constant-voltage Lithium-Ion/Polymer charger utilizes a Bat-Trackв„ў feature to maximize the
  efficiency of the battery charger by generating an input
  voltage that automatically tracks the battery voltage
  (described below). An I2C serial interface affords the
  system designer complete control over the charger and USB/WALL …

Статьи

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  New Family of Integrated Power Controllers Combine Fast Battery Charging, PowerPath Control and Efficient DC/DC Converters in Less Than 20mm2 &mdash LT Journal
  PDF, 303 Кб, Файл опубликован: 23 сен 2008
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  L DESIGN FEATURES New Family of Integrated Power
  Controllers Combine Fast Battery
  Charging, PowerPath Control and
  Efficient DC/DC Converters in
  by Sam Nork
  Less Than 20mm2
  Introduction
  The quickest way to build an efficient
  power system for a battery-powered
  portable application is to use an
  IC that combines all power control
  functions into a single chip, namely a
  Power Management Integrated Circuit
  (PMIC). PMICs seamlessly manage
  power flow from various power sources
  (wall adapters, USB and batteries) to
  power loads (device systems and the
  charging battery), while maintaining
  current limits where required (such
  as that specified for USB). To this
  end, PMICs typically feature built-in
  PowerPathв„ў control, DC/DC conver-USB/WALL
  4.35V TO 5.5V TO OTHER …

Модельный ряд

Классификация производителя

• Power Management > PMIC & Multifunction > PMIC (DC/DC, PowerPath and Battery Charger)

Варианты написания:

LTC3555IUFD-1PBF, LTC3555IUFD-1 PBF, LTC3555IUFD1#PBF, LTC3555IUFD 1#PBF