LT1054 - Switched-Capacitor Voltage Converter with Regulator


  • Output Current: 100mA (LT1054)
    125mA (LT1054L)
  • Reference and Error Amplifier for Regulation
  • Low Loss: 1.1V at 100mA
  • Operating Range:
    3.5V to 15V (LT1054)
    3.5V to 7V (LT1054L)
  • External Shutdown
  • External Oscillator Synchronization
  • Can Be Paralleled
  • Pin Compatible with the LTC®1044/ICL7660
  • Available in SW16 and SO-8 Packages

Typical Application

LT1054 Typical Application
LT1054 Typical Application


The LT®1054 is a monolithic, bipolar, switched-capacitor voltage converter and regulator. The LT1054 provides higher output current than previously available converters with significantly lower voltage losses. An adaptive switch driver scheme optimizes efficiency over a wide range of output currents. Total voltage loss at 100mA output current is typically 1.1V. This holds true over the full supply voltage range of 3.5V to 15V. Quiescent current is typically 2.5mA.

The LT1054 also provides regulation, a feature not previously available in switched-capacitor voltage converters. By adding an external resistive divider a regulated output can be obtained. This output will be regulated against changes in both input voltage and output current. The LT1054 can also be shut down by grounding the feedback pin. Supply current in shutdown is less than 100μA.

The internal oscillator of the LT1054 runs at a nominal frequency of 25kHz. The oscillator pin can be used to adjust the switching frequency or to externally synchronize the LT1054.

The LT1054 is pin compatible with previous converters such the LTC1044/LTC7660.


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
LT1054CN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1054CS8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1054CS8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1054CSW#PBF SW-16 SW C 05-08-1620 (SW16) Yes
LT1054CSW#TRPBF SW-16 SW C 05-08-1620 (SW16) Yes
LT1054IN8#PBF N-8 N I 05-08-1510 (N8) Yes
LT1054IS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1054IS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1054ISW#PBF SW-16 SW I 05-08-1620 (SW16) Yes
LT1054ISW#TRPBF SW-16 SW I 05-08-1620 (SW16) Yes
LT1054LCS8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1054LCS8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes

LT1054 Package Drawing
LT1054 Package Drawing
LT1054 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
LT1054CN8#PBF N-8 C $3.25 $2.65 Yes
LT1054CS8#PBF SO-8 C $3.40 $2.80 Yes
LT1054CS8#TRPBF SO-8 C $2.86 Yes
LT1054CSW#PBF SW-16 C $4.00 $3.15 Yes
LT1054CSW#TRPBF SW-16 C $3.21 Yes
LT1054IN8#PBF N-8 I $4.75 $3.85 Yes
LT1054IS8#PBF SO-8 I $5.75 $4.50 Yes
LT1054IS8#TRPBF SO-8 I $4.56 Yes
LT1054ISW#PBF SW-16 I $5.75 $4.65 Yes
LT1054ISW#TRPBF SW-16 I $4.71 Yes
LT1054LCS8#PBF SO-8 C $2.30 $2.00 Yes
LT1054LCS8#TRPBF SO-8 C $2.06 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.

Click here to view our complete list of demo boards


  • Voltage Inverter
  • Voltage Regulator
  • Negative Voltage Doubler
  • Positive Voltage Doubler

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