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LTC3554 - Micropower USB Power Manager

Description

n 10μA Standby Mode Quiescent Current (All Outputs On) n Seamless Transition Between Input Power Sources: Li-Ion/Polymer Battery and USB n 240mΩ Internal Ideal Diode n Dual High Efficiency Step-Down Switching Regulators (200mA IOUT) with Adjustable Output Voltages n Pushbutton On/Off Control w

Features

  • Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators.

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Other Datasheets by Linear Technology (Analog Devices)

Part Number Description
LTC3554-1 Micropower USB Power Manager
LTC3554-2 Micropower USB Power Manager
LTC3554-3 Micropower USB Power Manager
LTC3553-2 Micropower USB Power Manager
LTC3555-1 High Efficiency USB Power Manager + Triple Step-Down DC/DC

Full PDF Text Transcription

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LTC3554/LTC3554-1/ LTC3554-2/LTC3554-3 Features Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators Description n 10μA Standby Mode Quiescent Current (All Outputs On) n Seamless Transition Between Input Power Sources: Li-Ion/Polymer Battery and USB n 240mΩ Internal Ideal Diode n Dual High Efficiency Step-Down Switching Regulators (200mA IOUT) with Adjustable Output Voltages n Pushbutton On/Off Control with System Reset n Reset Time: 5 sec (LTC3554/LTC3554-1), 14 sec (LTC3554-2/LTC3554-3) n Full Featured Li-Ion/Polymer Battery Charger n Programmable Charge Current with Thermal Limiting n Instant-On Operation with Discharged Battery n Battery Float Voltage: 4.2V (LTC3554/LTC3554-2/ LTC3554-3), 4.1V (LTC3554-1) n 3mm × 3mm × 0.
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