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LTC3555 - High Efficiency USB Power Manager + Triple Step-Down DC/DC

Description

The LTC®3555 family are highly integrated USB compatible power management and battery charger ICs for Li-Ion/Polymer battery applications.

Features

  • Power Manager n High Efficiency Switching PowerPath™ Controller with Bat-Track™ Adaptive Output Control n Programmable USB or Wall Current Limit (100mA/500mA/1A) n Full Featured Li-Ion/Polymer Battery Charger n 1.5A Maximum Charge Current n Internal 180mΩ Ideal Diode + External Ideal Diode Controller Powers Load in Battery Mode n Low No-Load Quiescent Current when Powered from BAT (.

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FEATURES Power Manager n High Efficiency Switching PowerPath™ Controller with Bat-Track™ Adaptive Output Control n Programmable USB or Wall Current Limit (100mA/500mA/1A) n Full Featured Li-Ion/Polymer Battery Charger n 1.5A Maximum Charge Current n Internal 180mΩ Ideal Diode + External Ideal Diode Controller Powers Load in Battery Mode n Low No-Load Quiescent Current when Powered from BAT (<32µA) DC/DCs n Triple High Efficiency Step-Down DC/DCs (1A/400mA/400mA IOUT) n All Regulators Operate at 2.25MHz n Dynamic Voltage Scaling on Two Outputs n I2C or Independent Enable, VOUT Controls n Low No-Load Quiescent Current: 20µA n 28-Pin (4mm × 5mm × 0.
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