LTC3114-1
RECOMMENDED FOR NEW DESIGNS40V, 1A Synchronous Buck-Boost DC/DC Converter with Programmable Output Current
- Part Models
- 24
- 1ku List Price
- Starting From $5.98
Overview
- Regulates VOUT Above, Below or Equal to VIN
- Single Inductor
- Wide VIN Range: 2.2V to 40V
- Wide VOUT Range: 2.7V to 40V
- 1A Output Current in Buck Mode
- 0.5A Output Current, VIN = 3.6V, VOUT = 5V
- Programmable Average Output Current
- Up to 96% Efficiency
- Burst Mode® Operation, 30µA No-Load IQ
- Current Mode Control
- 1.2MHz Ultralow Noise PWM
- Accurate RUN Pin Threshold
- Thermally Enhanced, 16-lead 3mm × 5mm DFN and TSSOP Packages
- AEC-Q100 Qualified for Automotive Applications
The LTC3114-1 is a versatile, wide operating voltage range synchronous monolithic buck-boost DC/DC converter with programmable average output current. The LTC3114-1’s proprietary buck-boost PWM control circuitry delivers low noise operation across the entire operating voltage range. Current mode control ensures exceptional line and load transient responses.
Synchronous, internal MOSFET switches and pin selectable Burst Mode operation maintain high efficiency across the entire range of load current. Average output current is programmed with a standard resistor and provides the basis for wide input range, high efficiency charging systems or constant current, high efficiency LED drive. Regulator turn-on is programmable through the accurate RUN pin. Quiescent current is just 3µA in shutdown. Overtemperature protection, short-circuit protection and soft-start are integrated. The LTC3114-1 is offered in 16-lead 3mm × 5mm × 0.75mm DFN and 16 lead TSSOP (FE) packages.
Applications
- 24V/28V Industrial Power Supply
- 12V Lead-Acid to 12V Regulator
- High Power LED Driver
- 12V/24V Solar Panel Battery Charging Systems
- Automotive Power Systems
Documentation
Data Sheet 1
User Guide 2
Technical Articles 1
Webcast 2
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 Models | Product Lifecycle | PCN |
|---|---|---|
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Apr 17, 2025 - 25_0043 Change of Gold to Copper Wire and BOM (Automotive) |
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| LTC3114EDHC-1#PBF | PRODUCTION | |
| LTC3114EDHC-1#TRPBF | PRODUCTION | |
| LTC3114EDHC-1#WPBF | PRODUCTION | |
| LTC3114EDHC-1#WTRPBF | PRODUCTION | |
| LTC3114EFE-1#WPBF | PRODUCTION | |
| LTC3114EFE-1#WTRPBF | PRODUCTION | |
| LTC3114HDHC-1#PBF | PRODUCTION | |
| LTC3114HDHC-1#TRPBF | PRODUCTION | |
| LTC3114IDHC-1#WPBF | PRODUCTION | |
| LTC3114IDHC-1#WTRPBF | PRODUCTION | |
| LTC3114IFE-1#WPBF | PRODUCTION | |
| LTC3114IFE-1#WTRPBF | PRODUCTION | |
|
Jul 31, 2020 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan) |
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| LTC3114EDHC-1#PBF | PRODUCTION | |
| LTC3114EDHC-1#TRPBF | PRODUCTION | |
| LTC3114EDHC-1#WPBF | PRODUCTION | |
| LTC3114EDHC-1#WTRPBF | PRODUCTION | |
| LTC3114EFE-1#PBF | PRODUCTION | |
| LTC3114EFE-1#TRPBF | PRODUCTION | |
| LTC3114EFE-1#WPBF | PRODUCTION | |
| LTC3114EFE-1#WTRPBF | PRODUCTION | |
| LTC3114HDHC-1#PBF | PRODUCTION | |
| LTC3114HDHC-1#TRPBF | PRODUCTION | |
| LTC3114HFE-1#PBF | PRODUCTION | |
| LTC3114HFE-1#TRPBF | PRODUCTION | |
| LTC3114IDHC-1#PBF | PRODUCTION | |
| LTC3114IDHC-1#TRPBF | PRODUCTION | |
| LTC3114IDHC-1#WPBF | PRODUCTION | |
| LTC3114IDHC-1#WTRPBF | PRODUCTION | |
| LTC3114IFE-1#PBF | PRODUCTION | |
| LTC3114IFE-1#TRPBF | PRODUCTION | |
| LTC3114IFE-1#WPBF | PRODUCTION | |
| LTC3114IFE-1#WTRPBF | PRODUCTION | |
| LTC3114MPDHC-1#PBF | PRODUCTION | |
| LTC3114MPDHC-1#TRPBF | PRODUCTION | |
| LTC3114MPFE-1#PBF | PRODUCTION | |
| LTC3114MPFE-1#TRPBF | PRODUCTION | |
|
Nov 18, 2019 - 19_0215 LTC3114 - Die Revision |
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| LTC3114EDHC-1#PBF | PRODUCTION | |
| LTC3114EDHC-1#TRPBF | PRODUCTION | |
| LTC3114EDHC-1#WPBF | PRODUCTION | |
| LTC3114EDHC-1#WTRPBF | PRODUCTION | |
| LTC3114EFE-1#PBF | PRODUCTION | |
| LTC3114EFE-1#TRPBF | PRODUCTION | |
| LTC3114HDHC-1#PBF | PRODUCTION | |
| LTC3114HDHC-1#TRPBF | PRODUCTION | |
| LTC3114HFE-1#PBF | PRODUCTION | |
| LTC3114HFE-1#TRPBF | PRODUCTION | |
| LTC3114IDHC-1#PBF | PRODUCTION | |
| LTC3114IDHC-1#TRPBF | PRODUCTION | |
| LTC3114IDHC-1#WPBF | PRODUCTION | |
| LTC3114IDHC-1#WTRPBF | PRODUCTION | |
| LTC3114IFE-1#PBF | PRODUCTION | |
| LTC3114IFE-1#TRPBF | PRODUCTION | |
| LTC3114MPDHC-1#PBF | PRODUCTION | |
| LTC3114MPDHC-1#TRPBF | PRODUCTION | |
| LTC3114MPFE-1#PBF | PRODUCTION | |
| LTC3114MPFE-1#TRPBF | PRODUCTION | |
|
Apr 12, 2022 - 22_0081 Moisture Sensitivity Level Rating Change of LTC3114-1, LTC3115-1, LTC3115-2 with #W for LFCSP Package. |
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| LTC3114EDHC-1#WPBF | PRODUCTION | |
| LTC3114EDHC-1#WTRPBF | PRODUCTION | |
| LTC3114IDHC-1#WPBF | PRODUCTION | |
| LTC3114IDHC-1#WTRPBF | PRODUCTION | |
|
May 18, 2026 - 26_0072 Epoxy Change for Select TSSOP Products |
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| LTC3114EFE-1#PBF | PRODUCTION | |
| LTC3114EFE-1#TRPBF | PRODUCTION | |
| LTC3114EFE-1#WPBF | PRODUCTION | |
| LTC3114EFE-1#WTRPBF | PRODUCTION | |
| LTC3114HFE-1#PBF | PRODUCTION | |
| LTC3114HFE-1#TRPBF | PRODUCTION | |
| LTC3114IFE-1#PBF | PRODUCTION | |
| LTC3114IFE-1#TRPBF | PRODUCTION | |
| LTC3114IFE-1#WPBF | PRODUCTION | |
| LTC3114IFE-1#WTRPBF | PRODUCTION | |
| LTC3114MPFE-1#PBF | PRODUCTION | |
| LTC3114MPFE-1#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL |
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| LTC3114EFE-1#PBF | PRODUCTION | |
| LTC3114EFE-1#TRPBF | PRODUCTION | |
| LTC3114EFE-1#WPBF | PRODUCTION | |
| LTC3114EFE-1#WTRPBF | PRODUCTION | |
| LTC3114HFE-1#PBF | PRODUCTION | |
| LTC3114HFE-1#TRPBF | PRODUCTION | |
| LTC3114IFE-1#PBF | PRODUCTION | |
| LTC3114IFE-1#TRPBF | PRODUCTION | |
| LTC3114IFE-1#WPBF | PRODUCTION | |
| LTC3114IFE-1#WTRPBF | PRODUCTION | |
| LTC3114MPFE-1#PBF | PRODUCTION | |
| LTC3114MPFE-1#TRPBF | PRODUCTION | |
|
Mar 4, 2022 - 22_0018 Moisture Sensitivity Level Rating Change of LTC3114-1 with #W eTSSOP Package. |
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| LTC3114EFE-1#WPBF | PRODUCTION | |
| LTC3114EFE-1#WTRPBF | PRODUCTION | |
| LTC3114IFE-1#WPBF | PRODUCTION | |
| LTC3114IFE-1#WTRPBF | PRODUCTION | |
|
Jan 20, 2020 - 19_0215 LTC3114 - Die Revision |
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| LTC3114IFE-1#WPBF | PRODUCTION | |
| LTC3114IFE-1#WTRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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|---|---|---|
| Hot Swap Controllers 1 | ||
| LTC4364 | RECOMMENDED FOR NEW DESIGNS | Surge Stopper with Ideal Diode |
Tools & Simulations
LTspice 2
- LTC3114-1 - Buck-Boost Regulators
- LTC3114-1 Demo Circuit - Wide Vin Range Regulator with Bootstrapped LDO (2.7-40V to 5V @ 1A)
Models for the following parts are available in LTspice:
- LTC3114-1
LTpowerCAD 1
Design tools for the following parts are available in LTpowerCAD:
- LTC3114-1
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.
LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.
Evaluation Kits
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