Features

• Bidirectional Switching Regulator with Bat- Track™ Adaptive Output Control Provides Efficient Charging and a 5V Output for USB On-The-Go
• Bat-Track Control of External High Voltage Step-Down Switching Regulator
• Overvoltage Protection Guards Against Damage
• “Instant-On” Operation with Discharged Battery
• Triple Step-Down Switching Regulators with I2C Adjustable Outputs (1A/400mA/400mA IOUT)
• 180mΩ Internal Ideal Diode + External Ideal Diode Controller Powers the Load in Battery Mode
• Li-Ion/Polymer Battery Charger (1.5A Max ICHG)
• Battery Float Voltage: 4.2V (LTC3576), 4.1V (LTC3576-1)
• Compact (4mm × 6mm × 0.75mm) 38-pin QFN Package

Typical Application

Applications

• HDD-Based Media Players
• GPS, PDAs, Digital Cameras, Smart Phones
• Automotive Compatible Portable Electronics

Packaging

Datasheet

• LTC3576/LTC3576-1 - Switching Power Manager with USB On-the-Go + Triple Step-Down DC/DCs

Reliability Data

• R415 - Reliability Data

LT Journal

• June 2009 - Power Management IC Combines USB On-The-Go and USB Charging in Compact Easy-to-Use Solution
• March 2009 - 1.2A Monolithic Buck Regulator Shrinks Supply Size and Cost with Programmable Output Current Limit

Press Release

• Switching Power Manager with USB On-The-Go & Overvoltage Protection plus Triple Sync Buck Regulators in 24mm2

Related Product

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• LTC3556 - High Efficiency USB Power Manager with Dual Buck and Buck-Boost DC/DCs
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• LTC3555/LTC3555-X - High Efficiency USB Power Manager + Triple Step-Down DC/DC
• LTC3455/LTC3455-1 - Dual DC/DC Converter with USB Power Manager and Li-Ion Battery Charger
• LTC3553 - Micropower USB Power Manager With Li-Ion Charger, LDO and Buck Regulator
• LTC3566 - High Efficiency USB Power Manager Plus 1A Buck-Boost Converter
• LTC3586/LTC3586-1 - High Efficiency USB Power Manager with Boost, Buck-Boost and Dual Bucks
• LTC3558 - Linear USB Battery Charger with Buck and Buck-Boost Regulators
• LTC3115-1 - 40V, 2A Synchronous Buck-Boost DC/DC Converter