LTC3118

RECOMMENDED FOR NEW DESIGNS

18V, 2A Buck-Boost DC/DC Converter with Low-Loss Dual Input PowerPath

Data Sheet Product Selection Table

Part Models: 16
1ku List Price: Starting From $6.84

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Part Details

Integrated High Efficiency Dual Input PowerPath^™ Plus Buck-Boost DC/DC Converter
Ideal Diode or Priority V_IN Select Modes
V_IN1 and V_IN2 Range: 2.2V to 18V
V_OUT Range: 2V to 18V
Either V_IN Can Be Above, Below or Equal to V_OUT
Generates 5V at 2A for V_IN > 6V
1.2MHz Low Noise Fixed Frequency Operation
Current Mode Control
All Internal N-Channel MOSFETs
Pin-Selectable PWM or Burst Mode^® Operation
Accurate, Independent RUN Pin Thresholds
Up to 94% Efficiency
V_IN and V_OUT Power Good Indicators
I_Q of 50μA in Sleep, 2μA in Shutdown
4mm × 5mm 24-Lead QFN or 28-Lead TSSOP Packages

Part Models: 16
1ku List Price: Starting From $6.84

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
LTC3118EFE#PBF	28-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118EFE#TRPBF	28-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118EUFD#PBF	24-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118EUFD#TRPBF	24-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118HFE#PBF	28-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118HFE#TRPBF	28-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118HUFD#PBF	24-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118HUFD#TRPBF	24-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118IFE#PBF	28-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118IFE#TRPBF	28-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118IUFD#PBF	24-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118IUFD#TRPBF	24-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118MPFE#PBF	28-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118MPFE#TRPBF	28-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118MPUFD#PBF	24-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3118MPUFD#TRPBF	24-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

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
LTC3118EFE#PBF	PRODUCTION
LTC3118EFE#TRPBF	PRODUCTION
LTC3118HFE#PBF	PRODUCTION
LTC3118HFE#TRPBF	PRODUCTION
LTC3118IFE#PBF	PRODUCTION
LTC3118IFE#TRPBF	PRODUCTION
LTC3118MPFE#PBF	PRODUCTION
LTC3118MPFE#TRPBF	PRODUCTION
Apr 11, 2019 - 19_0067 Notification of Wafer Fab Location Change for 0.35 BCD Process
		PCN19_0067_Form Material_Report Delta Qualification Matrix Qualification Results Summary Detailed Parts List Other
LTC3118EFE#PBF	PRODUCTION
LTC3118EFE#TRPBF	PRODUCTION
LTC3118EUFD#PBF	PRODUCTION
LTC3118EUFD#TRPBF	PRODUCTION
LTC3118HFE#PBF	PRODUCTION
LTC3118HFE#TRPBF	PRODUCTION
LTC3118HUFD#PBF	PRODUCTION
LTC3118HUFD#TRPBF	PRODUCTION
LTC3118IFE#PBF	PRODUCTION
LTC3118IFE#TRPBF	PRODUCTION
LTC3118IUFD#PBF	PRODUCTION
LTC3118IUFD#TRPBF	PRODUCTION
LTC3118MPFE#PBF	PRODUCTION
LTC3118MPFE#TRPBF	PRODUCTION
LTC3118MPUFD#PBF	PRODUCTION
LTC3118MPUFD#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
PowerPath, Ideal Diodes, and Load Switches 2
LTC4417	RECOMMENDED FOR NEW DESIGNS	Prioritized PowerPath^™ Controller
LTC4419	RECOMMENDED FOR NEW DESIGNS	18V Dual Input Micropower PowerPath Prioritizer

Parts	Product Life Cycle	Description
LTC3126	RECOMMENDED FOR NEW DESIGNS	42V, 2.5A Synchronous Step-Down Regulator with No-Loss Input PowerPath

Tools & Simulations

LTspice 1

LTC3118 - Power Monitor, Control, and Protection

Models for the following parts are available in LTspice:

LTC3118

LTpowerCAD 1

LTC3118 Project - 18V, 2A Buck-Boost DC/DC Converter with Low-Loss Dual Input PowerPath (2.5-18V to 5V @ 2A)

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

LTC3118EUFD Demo Board | Dual Input Buck-Boost, 2.5V ≤ VIN ≤ 18V, VOUT = 5V @ up to 2A

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Product Details

Demonstration Circuit 2045A featuring the LTC3118 is a dual input fixed frequency synchronous buck-boost converter with an intelligent integrated low-loss Power-Path™. The unique all N-Channel architecture provides efficient operation from either input source to a programmable output voltage above, below or equal to the input. Voltage capability of up to 18V provides flexibility and voltage margin for a variety of applications and power sources.

Resources

DC2045A - Design Files
1.00M

DC2045A - Schematic
88.00K

DC2045A - Demo Manual
946.00K

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