LTC4160 - Switching Power Manager with USB On-The-Go And Overvoltage Protection

The LTC®4160/LTC4160-1 are high efficiency power management and Li-Ion/Polymer battery charger ICs. They each include a bidirectional switching PowerPath™ controller with automatic load prioritization, a battery charger, and an ideal diode.

The LTC4160/LTC4160-1’s bidirectional switching regulator transfers nearly all of the power available from the USB port to the load with minimal loss and heat which eases thermal constraints in small spaces. These devices feature a precision input current limit for USB compatibility and Bat-Track output control for efficient charging. In addition, the ICs can also generate 5V at 500mA for USB On-The- Go applications.

An overvoltage circuit protects the LTC4160/LTC4160-1 from high voltage damage on the USB/wall adapter inputs with an external N-channel MOSFET and a resistor.

The LTC4160/LTC4160-1 are available in a 3mm × 4mm × 0.75mm QFN surface mount package.

Features
  • Bidirectional Switching Regulator Makes Optimal Use of Limited Power Available from USB Port and also Provides a 5V Output for USB On-The-Go
  • Overvoltage Protection Guards Against Damage
  • 180mΩ Internal Ideal Diode Plus Optional External Ideal Diode Controller Seamlessly Provides Low Loss PowerPath When Input Power is Limited or Unavailable
  • Instant-On Operation with Discharged Battery
  • Full Featured Li-Ion/Polymer Battery Charger
  • Bat-Track™ Adaptive Output Control For Efficient Charging
  • 1.2A Max Input Current Limit
  • 1.2A Max Charge Current with Thermal Limiting
  • Battery Float Voltage: 4.2V (LTC4160), 4.1V (LTC4160-1)
  • Low Battery Powered Quiescent Current (8μA)
  • 20-pin 3mm × 4mm × 0.75mm QFN Package
Typical Application


Applications
  • Media Players and Personal Navigation Devices
  • Digital Cameras, PDAs, Smart Phones
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC4160EUDC-1#PBF3x4 QFN-20E$4.07$2.85
LTC4160EUDC-1#TRPBF3x4 QFN-20E$2.91
LTC4160EUDC#PBF3x4 QFN-20E$4.07$2.85
LTC4160EUDC#TRPBF3x4 QFN-20E$2.91
Demo Boards
Part NumberDescriptionPrice
DC1463A-ALTC4160EPDC Demo Board | Switching Power Manager with USB On-the-Go and Overvoltage Protection$125.00
DC1463A-BLTC4160EPDC-1 Demo Board | Switching Power Manager with USB On-the-Go and Overvoltage Protection$125.00
Datasheet
Reliability Data
Product Selector Card
LT Journal
Press Release
Related Product
LTC4160/LTC4160-1 - Switching Power Manager with USB On-The-Go And Overvoltage Protection
R540 - Reliability Data
I2C Battery Gas Gauges
June 2009 - Bidirectional Power Manager Provides Efficient Charging and Automatic USB On-The-Go with a Single Inductor
具 USB On-The-Go 和过压保护功能的开关电源管理器在一个紧凑的 12 平方毫米占板面积中
LTC4160 Footprints and Symbols