LT1054
LT1054
PRODUCTIONSwitched-Capacitor Voltage Converter with Regulator
- Part Models
- 12
- 1ku List Price
- Starting From $3.49
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Overview
- 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 LTC1044/ICL7660
- Available in SW16 and SO-8 Packages
The LT1054 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/ICL7660.
Applications
- Voltage Inverter
- Voltage Regulator
- Negative Voltage Doubler
- Positive Voltage Doubler
Documentation
Data Sheet 1
Application Note 5
Technical Articles 1
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 |
|---|---|---|---|
| LT1054CN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
| LT1054CS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1054CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1054CSW#PBF | 16-Lead SOIC (Wide 0.3 Inch) | ||
| LT1054CSW#TRPBF | 16-Lead SOIC (Wide 0.3 Inch) | ||
| LT1054IN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
| LT1054IS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1054IS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1054ISW#PBF | 16-Lead SOIC (Wide 0.3 Inch) | ||
| LT1054ISW#TRPBF | 16-Lead SOIC (Wide 0.3 Inch) | ||
| LT1054LCS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1054LCS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 8, 2024 - 24_0234 Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package |
||
| LT1054CN8#PBF | PRODUCTION | |
| LT1054IN8#PBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package |
||
| LT1054CN8#PBF | PRODUCTION | |
| LT1054IN8#PBF | PRODUCTION | |
|
Aug 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG] |
||
| LT1054CN8#PBF | PRODUCTION | |
| LT1054IN8#PBF | PRODUCTION | |
|
Nov 14, 2022 - 22_0254 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2) |
||
| LT1054CS8#PBF | PRODUCTION | |
| LT1054CS8#TRPBF | PRODUCTION | |
| LT1054LCS8#PBF | PRODUCTION | |
| LT1054LCS8#TRPBF | PRODUCTION | |
|
Jun 11, 2021 - 21_0060 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LT1054CS8#PBF | PRODUCTION | |
| LT1054CS8#TRPBF | PRODUCTION | |
| LT1054IS8#PBF | PRODUCTION | |
| LT1054IS8#TRPBF | PRODUCTION | |
| LT1054LCS8#PBF | PRODUCTION | |
| LT1054LCS8#TRPBF | PRODUCTION | |
|
Aug 10, 2022 - 22_0176 Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL |
||
| LT1054CSW#PBF | PRODUCTION | |
| LT1054CSW#TRPBF | PRODUCTION | |
| LT1054ISW#PBF | PRODUCTION | |
| LT1054ISW#TRPBF | PRODUCTION | |
|
Dec 14, 2023 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LT1054IS8#PBF | PRODUCTION | |
| LT1054IS8#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT1054
- LT1054L
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.
Evaluation Kits
Companion board for Buck Converter Basics Active Learning lab exercise
Resources
Companion board for Buck Converter Basics Active Learning lab exercise