LTC7106 - A 7-Bit Current DAC with PMBus Interface


  • ±0.8% IDAC Positive Output Current Accuracy (Over Temp)
  • ±1.5% IDAC Negative Output Current Accuracy (Over Temp)
  • PMBus/I2C Compliant Serial Interface
  • Input Voltage Range: 2.5V to 5.5V
  • High Impedance at IDAC Output When Disabled
  • Wide IDAC Operation Voltage (0.4V to 2.0V)
  • 7-Bit Programmable DAC Output Current for DC/DC VOUT Control
  • Wide Range IDAC Output Current: ±16μA to ±256μA
  • Programmable Slew Rate: 500ns ~ 3ms per Bit
  • Available in a 10-Lead (3mm × 2mm) DFN Package

Typical Application

LTC7106 Typical Application
LTC7106 Typical Application


The LTC®7106 is a precision, PMBus controlled, bidirectional current digital-to-analog converter that adjusts the output voltage of any conventional VFB referenced regulator. The LTC7106 can work with the vast majority of power management controllers or regulators to enable digital control of the output voltage. Internal power-on reset circuitry keeps the DAC output current at zero (high impedance IDAC) until a valid write takes place. Features include a range bit for easy interfacing to almost any impedance resistor divider, and an open-drain GPO output for controlling the Run or Enable pin of the DC/ DC regulator. For most applications, the current DAC error is significantly attenuated with proper design. See more detail about VOUT accuracy in the Applications Information section of this data sheet. The LTC7106 is supported by the ADI LTpowerPlay® development tool with graphical user interface (GUI).


For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
LTC7106EDDB#PBF 3x2 DFN-10 DDB E 05-08-1722 Yes
LTC7106EDDB#TRMPBF 3x2 DFN-10 DDB E 05-08-1722 Yes
LTC7106EDDB#TRPBF 3x2 DFN-10 DDB E 05-08-1722 Yes
LTC7106IDDB#PBF 3x2 DFN-10 DDB I 05-08-1722 Yes
LTC7106IDDB#TRMPBF 3x2 DFN-10 DDB I 05-08-1722 Yes
LTC7106IDDB#TRPBF 3x2 DFN-10 DDB I 05-08-1722 Yes

LTC7106 Package Drawing

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
LTC7106EDDB#PBF 3x2 DFN-10 E $1.79 Yes
LTC7106EDDB#TRMPBF 3x2 DFN-10 E $1.79 $1.30 Yes
LTC7106EDDB#TRPBF 3x2 DFN-10 E $1.79 $1.25 Yes
LTC7106IDDB#PBF 3x2 DFN-10 I $1.96 Yes
LTC7106IDDB#TRMPBF 3x2 DFN-10 I $1.96 $1.42 Yes
LTC7106IDDB#TRPBF 3x2 DFN-10 I $1.96 $1.37 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

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
DC2620A LTC7106EDDB Demo Board | 7-Bit IDAC with PMBus interface to adjust VOUT of a Regulator Contact Factory
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Click here to view our complete list of demo boards


  • General Purpose Power Systems
  • Telecom Systems
  • Industrial Applications

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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