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LTC3555-3 Datasheet High Efficiency USB Power Manager + Triple Step-Down DC/DC

Manufacturer: Linear Technology (now Analog Devices)

Download the LTC3555-3 datasheet PDF. This datasheet also includes the LTC3555 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (LTC3555_LinearTechnology.pdf) that lists specifications for multiple related part numbers.

General Description

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

They include a high efficiency current limited switching PowerPath manager with automatic load prioritization, a battery charger, an ideal diode and three general purpose synchronous step-down switching regulators.

The LTC3555 family limits input current to either 100mA or 500mA for USB applications or 1A for adapter-powered applications.

Key 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 (.

More Datasheets from Linear Technology (now Analog Devices)

Part Number Description
LTC3555-1 High Efficiency USB Power Manager + Triple Step-Down DC/DC
LTC3553-2 Micropower USB Power Manager
LTC3554 Micropower USB Power Manager
LTC3554-1 Micropower USB Power Manager
LTC3554-2 Micropower USB Power Manager
LTC3554-3 Micropower USB Power Manager
LTC3525D-3.3 400mA Micropower Synchronous Step-Up DC/DC Converter
LTC3525L-3 400mA Micropower Synchronous Step-Up DC/DC Converter
LTC3526L-2 550mA 2MHz Synchronous Step-Up DC/DC Converters
LTC3526LB-2 550mA 2MHz Synchronous Step-Up DC/DC Converters