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  2. Power Management
  3. Switching Regulators
  4. Inverting Regulators
  5. LT1107


Features and Benefits

  • Operates at Supply Voltages from 2V to 30V
  • Consumes Only 320µA Supply Current
  • Works in Step-Up or Step-Down Mode
  • Only Three External Components Required
  • Low-Battery Detector Comparator On-Chip
  • User Adjustable Current Limit
  • Internal 1A Power Switch
  • Fixed or Adjustable Output Voltage Versions
  • Space Saving 8-Pin MiniDIP or SO-8 Package

Product Details

The LT1107 is a versatile micropower DC/DC converter. The device requires only three external components to deliver a fixed output of 5V or 12V. Supply voltage ranges from 2V to 12V in step-up mode and to 30V in step-down mode. The LT1107 functions equally well in step-up, step-down, or inverting applications.

The LT1107 is pin-for-pin compatible with the LT1111, but has a duty cycle of 70%, resulting in increased output current in many applications. The LT1107 can deliver 150mA at 5V from a 2AA cell input and 5V at 300mA from 24V in step-down mode. Quiescent current is just 320µA, making the LT1107 ideal for power-conscious battery operated systems. The 63kHz oscillator is optimized to work with surface mount inductors and capacitors.

Switch current limit can be programmed with a single resistor. An auxiliary gain block can be configured as a low-battery detector, linear post regulator, undervoltage lock-out circuit, or error amplifier.


  • Palmtop Computers
  • 3V to 5V, 5V to 12V Converters
  • 24V to 5V, 12V to 5V Converters
  • LCD Bias Generators
  • Peripherals and Add-On Cards
  • Battery Backup Supplies
  • Cellular Telephones
  • Portable Instruments

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations


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.


Models for the following parts are available in LTspice:


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

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LT1107CS8#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT1107CS8#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT1107CS8-12#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT1107CS8-12#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT1107CS8-5#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT1107CS8-5#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT1107IS8#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT1107IS8#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
Wafer Fabrication Data R177 Reliability Data

PCN-PDN Information

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Sample & Buy

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Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku 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 Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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