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LTC3556

Part Number	LTC3556
Manufacturer	Linear Technology Corporation
Description	USB Power Manager
Published	Jan 12, 2009
Detailed Description	FEATURES POWER MANAGER n High Efficiency Switching PowerPathTM Controller with Bat-TrackTM Adaptive Output Control n Pro...
Datasheet	LTC3556 PDF File

Overview

FEATURES POWER MANAGER n High Efficiency Switching PowerPathTM Controller with Bat-TrackTM Adaptive Output Control n Programmable USB or Wall Current Limit (100mA/500mA/1A) n Full Featured Li-Ion/Polymer Battery Charger n Instant-On Operation with a Discharged Battery n 1.
5A Maximum Charge Current n Internal 180mΩ Ideal Diode Plus External Ideal Diode Controller Powers Load in Battery Mode n Low No-Load IQ when Powered from BAT (<30µA) DC/DCs n Dual High Efficiency Buck DC/DCs (400mA/400mA IOUT) n High Efficiency Buck-Boost DC/DC (1A IOUT) n All Regulators Operate at 2.
25MHz n Dynamic Voltage Scaling on Two Buck Outputs n I2C Control of Enables, Mode, Two VOUT Settings n ENALL Pin with Power-Up Sequence Control n Low No-Load Quiescent Current: 20µA Each APPLICATIONS n HDD-Based MP3 Players, PDAs, GPS, PMPs n Other USB-Based Handheld Products LTC3556 High Efficiency USB Power Manager with Dual Buck and Buck-Boost DC/DCs DESCRIPTION The LTC®3556 is a highly integrated power management a...

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