LTC3586/LTC3586-1 - High Efficiency USB Power Manager with Boost, Buck-Boost and Dual Bucks
Features
Power Manager- High Efficiency Switching PowerPathTM Controller with Bat-TrackTM Adaptive Output Control and “Instant-On” Operation
- Programmable USB or Wall Current Limit (100mA/500mA/1A)
- Full Featured Li-Ion/Polymer Battery Charger with Float Voltage of 4.1V (LTC3586-1) or 4.2V (LTC3586) with 1.5A Maximum Charge Current
- Internal 180mΩ Ideal Diode Plus External Ideal Diode Controller Powers Load in Battery Mode
- <30μA No-Load Quiescent Current when Powered from BAT
- Dual High Efficiency Buck DC/DCs (400mA IOUT)
- High Efficiency Buck-Boost DC/DC (1A IOUT)
- High Efficiency Boost DC/DC (800mA IOUT)
- Compact (4mm × 6mm × 0.75mm) 38-Pin QFN Package
Typical Application
Description
The LTC3586/LTC3586-1 are highly integrated 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, battery charger, ideal diode, and four synchronous switching regulators (two bucks, one buck-boost and one boost). Designed specifically for USB applications, the LTC3586/LTC3586-1’s switching power manager automatically limits input current to a maximum of either 100mA or 500mA for USB applications or 1A for adapter-powered applications.
Unlike linear chargers, the LTC3586/LTC3586-1 switching architecture transmits nearly all of the power available from the USB port to the load with minimal loss and heat which eases thermal constraints in small places. The two buck regulators can provide up to 400mA each, the buck-boost can deliver 1A, and the boost delivers at least 800mA.
The LTC3586/LTC3586-1 are available in a low profile 0.75mm) 38-pin 4mm × 6mm QFN package.
| Options | Float Voltage (V) | Fault Pin Functionality | Boost Overvoltage Threshold (V) | Boost Overvoltage Hysteresis |
|---|---|---|---|---|
| LTC3586 | 4.2V | Bi-Directional with Latch | 5.3V | 300mV |
| LTC3586-1 | 4.1V | Bi-Directional with Latch | 5.3V | 300mV |
| LTC3586-2 | 4.2V | Output Only, No Latch | 5.5V | 100mV |
| LTC3586-3 | 4.1V | Output Only, No Latch | 5.5V | 100mV |
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 |
|---|---|---|---|---|---|
| LTC3586EUFE-1#PBF | 4x6 QFN-38 | UFE | E | 05-08-1750 | Yes |
| LTC3586EUFE-1#TRPBF | 4x6 QFN-38 | UFE | E | 05-08-1750 | Yes |
| LTC3586EUFE#PBF | 4x6 QFN-38 | UFE | E | 05-08-1750 | Yes |
| LTC3586EUFE#TRPBF | 4x6 QFN-38 | UFE | E | 05-08-1750 | 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 | |
|---|---|---|---|---|---|---|
| LTC3586EUFE-1#PBF | 4x6 QFN-38 | E | $7.57 | $5.30 | Yes | |
| LTC3586EUFE-1#TRPBF | 4x6 QFN-38 | E | $5.36 | Yes | ||
| LTC3586EUFE#PBF | 4x6 QFN-38 | E | $7.57 | $5.30 | Yes | |
| LTC3586EUFE#TRPBF | 4x6 QFN-38 | E | $5.36 | 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 |
|---|---|---|---|
| DC1306A | LTC3586EUFE Demo Board I High Efficiency USB Power Manager + Dual Buck + Boost + Buck-Boost DC/DC | $125.00 | |
| Buy Now | |||
Applications
- Digital Still Cameras
- HDD-Based MP3 Players, PDAs, GPS, PMPs
- Other USB-Based Handheld Products
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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.
