LTC4160 - Switching Power Manager with USB On-The-Go And Overvoltage Protection
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
Description
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.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC4160EUDC-1#PBF | 3x4 QFN-20 | UDC | E | 05-08-1742 | Yes |
| LTC4160EUDC-1#TRPBF | 3x4 QFN-20 | UDC | E | 05-08-1742 | Yes |
| LTC4160EUDC#PBF | 3x4 QFN-20 | UDC | E | 05-08-1742 | Yes |
| LTC4160EUDC#TRPBF | 3x4 QFN-20 | UDC | E | 05-08-1742 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC4160EUDC-1#PBF | 3x4 QFN-20 | E | $4.07 | $2.85 | Yes | |
| LTC4160EUDC-1#TRPBF | 3x4 QFN-20 | E | $2.91 | Yes | ||
| LTC4160EUDC#PBF | 3x4 QFN-20 | E | $4.07 | $2.85 | Yes | |
| LTC4160EUDC#TRPBF | 3x4 QFN-20 | E | $2.91 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1463A-A | LTC4160EPDC Demo Board | Switching Power Manager with USB On-the-Go and Overvoltage Protection | $125.00 | |
| DC1463A-B | LTC4160EPDC-1 Demo Board | Switching Power Manager with USB On-the-Go and Overvoltage Protection | $125.00 | |
| Buy Now | |||
Applications
- Media Players and Personal Navigation Devices
- Digital Cameras, PDAs, Smart Phones
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Design Tools
Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:
- LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
- LTpowerCAD - A complete power supply selection, synthesis and design tool
- LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
- PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
- Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
- LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
- And More!
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
