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LTC3456 - 2-Cell Multi-Output DC/DC Converter

Features

  • Seamless Transition Between 2-Cell Battery, USB and AC Wall Adapter Input Power Sources.
  • Main Output: Fixed 3.3V Output.
  • Core Output: Adjustable from 0.8V to VBATT(MIN).
  • Hot SwapTM Output for Memory Cards.
  • All Outputs Discharged to Ground During Shutdown.
  • Power Supply Sequencing: Main and Hot Swap Outputs Come Up After Core Output.
  • Accurate USB Current Limiting.
  • High Frequency Operation: 1MHz.
  • High Efficiency: Up to 92%.
  • Small (4mm × 4mm × 0.75m.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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U U LTC3456 2-Cell, Multi-Output DC/DC Converter with USB Power Manager FEATURES ■ Seamless Transition Between 2-Cell Battery, USB and AC Wall Adapter Input Power Sources ■ Main Output: Fixed 3.3V Output ■ Core Output: Adjustable from 0.8V to VBATT(MIN) ■ Hot SwapTM Output for Memory Cards ■ All Outputs Discharged to Ground During Shutdown ■ Power Supply Sequencing: Main and Hot Swap Outputs Come Up After Core Output ■ Accurate USB Current Limiting ■ High Frequency Operation: 1MHz ■ High Efficiency: Up to 92% ■ Small (4mm × 4mm × 0.75mm) 24-Pin QFN Package U APPLICATIO S ■ GPS Portable Navigators ■ MP3 Players ■ Digital Cameras ■ Handheld Computers DESCRIPTIO The LTC®3456 is a complete power management system IC optimized for a variety of portable applications.
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