LTC3104 - 2.6μA Quiescent Current, 15V, 300mA Synchronous Step-Down DC/DC Converter and 10mA LDO


  • Ultralow Quiescent Current: 2.6μA
  • Synchronous Rectification Efficiency Up to 95%
  • Wide VIN Range: 2.5V to 15V
  • Wide VOUT Range: 0.6V to 13.8V
  • 300mA Output Current
  • User-Selectable Automatic Burst Mode® Operation or Forced Continuous Operation
  • Accurate and Programmable RUN Pin Threshold
  • 1.2MHz Fixed Frequency PWM
  • Internal Compensation
  • Power Good Status Output for VOUT
  • 10mA Adjustable LDO
  • n Available in Thermally Enhanced 3mm × 4mm × 0.75mm, 14-Lead DFN and 16-Lead MSOP Packages

Typical Application

LTC3104 Typical Application
LTC3104 Typical Application


The LTC®3104 is a high efficiency, monolithic synchronous step-down converter using a current mode architecture capable of supplying 300mA of output current. The LTC3104 includes an integrated, adjustable 10mA LDO to power noise sensitive functions.

The LTC3104 offers two operational modes: automatic Burst Mode operation and forced continuous mode allowing the user to optimize output voltage ripple, noise and light load efficiency. With Burst Mode operation enabled, the typical DC input supply current at no load drops to 2.6μA, maximizing the efficiency for light loads. Selection of forced continuous mode provides very low noise constant frequency, 1.2MHz operation.

Additionally, the LTC3104 includes an accurate RUN comparator, thermal overload protection, a power good output and an integrated soft-start feature to guarantee that the power system start-up is well controlled.


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
LTC3104EDE#PBF 4x3 DFN-14 DE E 05-08-1708 Yes
LTC3104EDE#TRPBF 4x3 DFN-14 DE E 05-08-1708 Yes
LTC3104EMSE#PBF MS-16E MSE E 05-08-1667 Yes
LTC3104EMSE#TRPBF MS-16E MSE E 05-08-1667 Yes
LTC3104IDE#PBF 4x3 DFN-14 DE I 05-08-1708 Yes
LTC3104IDE#TRPBF 4x3 DFN-14 DE I 05-08-1708 Yes
LTC3104IMSE#PBF MS-16E MSE I 05-08-1667 Yes
LTC3104IMSE#TRPBF MS-16E MSE I 05-08-1667 Yes

LTC3104 Package Drawing
LTC3104 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
LTC3104EDE#PBF 4x3 DFN-14 E $3.81 $2.70 Yes
LTC3104EDE#TRPBF 4x3 DFN-14 E $2.76 Yes
LTC3104EMSE#PBF MS-16E E $3.81 $2.70 Yes
LTC3104EMSE#TRPBF MS-16E E $2.76 Yes
LTC3104IDE#PBF 4x3 DFN-14 I $4.19 $2.96 Yes
LTC3104IDE#TRPBF 4x3 DFN-14 I $3.01 Yes
LTC3104IMSE#PBF MS-16E I $4.19 $2.96 Yes
LTC3104IMSE#TRPBF MS-16E I $3.90 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
DC1754A LTC3104EDE Demo Board | 2.5V to 15V input, 3.3V at 300mA (Buck) and 1.8V at 10mA (LDO) Contact Factory
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  • Remote Sensor Networks
  • Distributed Power Systems
  • Multicell Battery or SuperCap Regulator
  • Energy Harvesters
  • Portable Instruments
  • Low Power Wireless Systems

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