Overview

Features and Benefits

  • 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

Product Details

The LTC4160/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.

Applications

  • Media Players and Personal Navigation Devices
  • Digital Cameras, PDAs, Smart Phones

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (2)

Product Recommendations

LTC4160 Companion Parts

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Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.