LTC3886
LTC3886-1

RECOMMENDED FOR NEW DESIGNS

60V Dual Output Step-Down Controller with Digital Power System Management

Data Sheet (Rev. G) Product Selection Table

Part Models: 8
1ku List Price: Starting From $7.54

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Part Details

PMBus/I²C Compliant Serial Interface
Telemetry Read-Back Includes V_IN, I_IN, V_OUT, I_OUT, Temperature and Faults
Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, Margining, OV/UV/OC, Frequency, and Control Loop Compensation
Output Error Less Than ±0.5% Over Temperature
Integrated 16-Bit ADC and 12-Bit DAC
Integrated High Side Current Sense Amplifier
Internal EEPROM with ECC and Fault Logging
Integrated N-Channel MOSFET Gate Drivers

Power Conversion

Wide V_IN Range: 4.5V to 60V
V_OUT0, V_OUT1 Range: 0.5V to 13.8V
Analog Current Mode Control
Accurate PolyPhase^® Current Sharing for Up to 6 Phases (100kHz to 750kHz)
Available in a 52-Lead (7mm × 8mm) QFN Package

Part Models: 8
1ku List Price: Starting From $7.54

Documentation

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. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC3886EUKG#PBF	52-Lead Plastic QFN (7mm x 8mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3886EUKG#TRPBF	52-Lead Plastic QFN (7mm x 8mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3886EUKG-1#PBF	52-Lead Plastic QFN (7mm x 8mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3886EUKG-1#TRPBF	52-Lead Plastic QFN (7mm x 8mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3886IUKG#PBF	52-Lead Plastic QFN (7mm x 8mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3886IUKG#TRPBF	52-Lead Plastic QFN (7mm x 8mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3886IUKG-1#PBF	52-Lead Plastic QFN (7mm x 8mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3886IUKG-1#TRPBF	52-Lead Plastic QFN (7mm x 8mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 1

LTC297x GitHub Linux Driver Source Code NEW

Hardware Ecosystem

Parts	Product Life Cycle	Description
Digital Power System Managers 1
LTC2975	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement

Parts	Product Life Cycle	Description
LTC3880	RECOMMENDED FOR NEW DESIGNS	Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
LTC3884 LTC3884-1		Dual Output PolyPhase Step-Down Controller with Sub-Milliohm DCR Sensing and Digital Power System Management

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC3886
LTC3886-1

Linduino 3

LTpowerCAD 2

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

Purchase Linduino

LTpowerCAD^® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

Evaluation Kits

Total Power Management: Hot Swap, Intermediate Bus Voltage, Point-of-Load (Featuring LTC4281, LTC3886, LTC3887, LTC2975) [Requires DC1613]

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Product Details

The DC2578A is a complete power chain, including a hot swap controller, an intermediate bus controller, and six point-of-load channels with power system management. The board demonstrates how to safely transfer power from a backplane, through an LTC4281 hot swap controller, through an LTC3886 step-down intermediate bus controller (IBC), and out through the point-of-load converters (POLs) that regulate load voltages. It shows the comprehensive set of power management, cooperation, and safety features of the Analog Devices solution, and showcases how easy it is to configure and manage the whole power hierarchy. Each regulated supply has the ability to sequence, trim, margin, supervise, measure, respond cooperatively to faults, and log fault information in nonvolatile memory. In addition, the onboard load pulser helps with optimizing the adjustable LTC3886 control loop response. The rich set of status and telemetry information provided by the entire system is consolidated and presented under one GUI interface — LTpowerPlay.

Resources

DC2578A - Schematic
638.00K

DC2578A - Demo Board Manual
2.00M

DC2578A - Design Files
4.00M

LTC3886UKG Demo Board (RSENSE) Dual Phase Dual Output PMBus Buck 18V≤VIN≤54V, VOUT0/VOUT1=5V to 12V at 12A per channel, 150kHz

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Product Details

Demonstration circuit 2155A is available in two configurations. The DC2155A-A is a dual output synchronous step-down converter featuring the LTC3886, a dual-phase current mode controller. The DC2155A-B is a single output synchronous step-down converter that operates with four phases: two from the LTC3886 and two from LTC3870, a phase extender. Both versions have a PMBus interface and digital power system management functions.

Resources

DC2155A - Demo Manual (Rev.C)
3.00M

DC2155A-A - Design Files
9.00M

DC2155A-A - Schematic
132.00K

LTC3886 UKG Package Clamshell Programming Demo Board

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Product Details

Demonstration circuit 2277A contains the circuitry needed to program and verify the EEPROM of the LTC3886 in the UKG package and that is its only purpose. The DC2277A is shipped with a LTC3886 installed in the clamshell style programming socket and its EEPROM contains the factory default configuration. The LTpowerPlay^™ #.proj file that corresponds to the factory default can be found in the GUI.