LTC3114-1

RECOMMENDED FOR NEW DESIGNS

40V, 1A Synchronous Buck-Boost DC/DC Converter with Programmable Output Current

Data Sheet (Rev. D) Product Selection Table

Part Models: 24
1ku List Price: Starting From $4.72

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Overview

Regulates V_OUT Above, Below or Equal to V_IN
Single Inductor
Wide V_IN Range: 2.2V to 40V
Wide V_OUT Range: 2.7V to 40V
1A Output Current in Buck Mode
0.5A Output Current, V_IN = 3.6V, V_OUT = 5V
Programmable Average Output Current
Up to 96% Efficiency

Burst Mode^® Operation, 30µA No-Load I_Q
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

Part Models: 24
1ku List Price: Starting From $4.72

Documentation

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
LTC3114EDHC-1#PBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114EDHC-1#TRPBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114EDHC-1#WPBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114EDHC-1#WTRPBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114EFE-1#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114EFE-1#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114EFE-1#WPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114EFE-1#WTRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114HDHC-1#PBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114HDHC-1#TRPBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114HFE-1#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114HFE-1#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114IDHC-1#PBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114IDHC-1#TRPBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114IDHC-1#WPBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114IDHC-1#WTRPBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114IFE-1#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114IFE-1#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114IFE-1#WPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114IFE-1#WTRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114MPDHC-1#PBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114MPDHC-1#TRPBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114MPFE-1#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3114MPFE-1#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 17, 2025 - 25_0043 Change of Gold to Copper Wire and BOM (Automotive)
		PCN25_0043_Form Material_Report Delta Qualification Matrix Qualification Results Summary
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)
		PCN20_0245_Form Material_Report Delta Qualification Matrix Other Qualification Results Summary
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
		PCN19_0215_Form Material_Report Other Other Other Other Delta Qualification Matrix
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.
		PCN22_0081_Form Material_Report Delta Qualification Matrix
LTC3114EDHC-1#WPBF	PRODUCTION
LTC3114EDHC-1#WTRPBF	PRODUCTION
LTC3114IDHC-1#WPBF	PRODUCTION
LTC3114IDHC-1#WTRPBF	PRODUCTION
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL
		PCN22_0068_Form Material_Report Delta Qualification Matrix
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.
		PCN22_0018_Form Material_Report Delta Qualification Matrix
LTC3114EFE-1#WPBF	PRODUCTION
LTC3114EFE-1#WTRPBF	PRODUCTION
LTC3114IFE-1#WPBF	PRODUCTION
LTC3114IFE-1#WTRPBF	PRODUCTION
Jan 20, 2020 - 19_0215 LTC3114 - Die Revision
		PCN19_0215_Form Material_Report Other Other Other Other Delta Qualification Matrix
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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Request a Driver/Software

Hardware Ecosystem

Parts	Product Life Cycle	Description
Protection Switches & Controllers 1
LTC4364	RECOMMENDED FOR NEW DESIGNS	Surge Stopper with Ideal Diode

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC3114-1

LTpowerCAD 1

LTC3114-1 Project - 40V, 1A, Monolithic Synchronous Buck-Boost Supply (2.7-40V to 5V @ 1A)

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

LTC3114 Signal Chain Evaluation Board | 40V, 1A Synchronous Buck-Boost DC/DC Converter with Programmable Output Current

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Product Details

Demonstration circuit SCP-LTC3114-1-EVALZ features the LTC3114-1, a wide operating range, synchronous mono-lithic buck-boost converter with programmable average output current. The circuit operates with a 2.2V to 40V in-put voltage range.

Like all boards in the Signal Chain Power series, this board is designed to be easily plugged into other SCP boards to form a complete signal chain power system, enabling fast evaluation of low power signal chains. To evaluate this board, some universal SCP hardware is required, namely:

SCP-INPUT-EVALZ
SCP-OUTPUT-EVALZ
SCP-1X5BKOUT-EVALZ
SCP-THRUBRD-EVALZ

SCP-FILTER-EVALZ
SCP-1X2BKOUT-EVALZ
SCP-5X1-EVALZ

To properly evaluate SCP series demo boards, you will need the SCP Configurator companion software. SCP Configurator can help you choose the right board and topology for your design.

Note that the Demo Manual does not cover details important to the operation and configuration regarding the LTC3114-1. Please refer to the LTC3114-1 data sheet for a complete description of the part.

Resources

SCP-LTC3114-1-EVALZ - Demo Manual (Rev.0)
2/1/2021

SCP-LTC3114-1-EVALZ - Schematic
2/1/2021

LTC3114EDHC-1 Demo Board | Sync Buck-Boost, VIN=2.7V to 40V, VOUT = 5V @ Up to 1A

Buy Now View Details

Product Details

Demonstration circuit 1821B features the LTC3114-1, a wide operating range synchronous monolithic buck-boost converter with programmable average output current. DC1821B operates with a 2.7V to 40V input voltage range. The demo board has been designed with the output voltage set to 5V and can provide up to 1A output with V_IN > 6V. It features two user selectable operating modes: Burst Mode^® operation and Fixed Frequency PWM (JP2). There is also an accurate programmable RUN pin which is used to ENABLE the converter (JP1).

The LTC3114-1 uses average current mode control to simplify voltage loop compensation and provide good line and load transient response. It incorporates a proprietary low noise switching algorithm which optimizes efficiency with input voltages above, below or equal to the output voltage and ensures seamless transitions between operating modes.

Resources

DC1821B - Design File
12/20/2016

DC1821B - Schematic
12/20/2016

DC1821B - Demo Manual
12/20/2016

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LTC3114-1

Overview

Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Technical Articles 1

Webcast 2

Software Resources

Can't find the software or driver you need?

Hardware Ecosystem

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTpowerCAD 1

Design tools for the following parts are available in LTpowerCAD:

Evaluation Kits

Product Details

Resources

Product Details

Resources

Latest Discussions

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