LTC1149

PRODUCTION

High Efficiency Synchronous Step-Down Switching Regulators

Data Sheet Product Selection Table

Part Models: 9
1ku List Price: Starting From $6.96

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Part Details

Operation to 48V Input Voltage
Ultrahigh Efficiency: Up to 95%
Current Mode Operation for Excellent Line and Load Transient Response
High Efficiency Maintained over Wide Current Range
Logic-Controlled Micropower Shutdown
Short-Circuit Protection
Very Low Dropout Operation: 100% Duty Cycle
Synchronous FET Switching for High Efficiency
Adaptive Nonoverlap Gate Drives
Available in 16-Pin Narrow SO Package

Part Models: 9
1ku List Price: Starting From $6.96

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
LTC1149CN#PBF	16-Lead PDIP (Narrow 0.30 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1149CN-3.3#PBF	16-Lead PDIP (Narrow 0.30 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1149CN-5#PBF	16-Lead PDIP (Narrow 0.30 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1149CS#PBF	16-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1149CS#TRPBF	16-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1149CS-3.3#PBF	16-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1149CS-3.3#TRPBF	16-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1149CS-5#PBF	16-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1149CS-5#TRPBF	16-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Aug 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]
		PCN22_0172_Form Material_Report Delta Qualification Matrix
LTC1149CN#PBF	PRODUCTION
LTC1149CN-3.3#PBF	PRODUCTION
LTC1149CN-5#PBF	PRODUCTION
Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package
		PCN24_0246_Form Material_Report Marking Comparison Delta Qualification Matrix
LTC1149CS#PBF	PRODUCTION
LTC1149CS#TRPBF	PRODUCTION
LTC1149CS-3.3#PBF	PRODUCTION
LTC1149CS-3.3#TRPBF	PRODUCTION
LTC1149CS-5#PBF	PRODUCTION
LTC1149CS-5#TRPBF	PRODUCTION
Aug 6, 2022 - 22_0173 Laser Top Mark Conversion for SOICN14 and SOICN16 Packages Assembled on ADPG [PNG]
		PCN22_0173_Form Material_Report Delta Qualification Matrix
LTC1149CS#PBF	PRODUCTION
LTC1149CS#TRPBF	PRODUCTION
LTC1149CS-3.3#PBF	PRODUCTION
LTC1149CS-3.3#TRPBF	PRODUCTION
LTC1149CS-5#PBF	PRODUCTION
LTC1149CS-5#TRPBF	PRODUCTION

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

Tools & Simulations

LTspice 1

LTC1149 - Step-Down (Buck) Regulators

Models for the following parts are available in LTspice:

LTC1149
LTC1149-3.3
LTC1149-5

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.

Latest Discussions

2 Years Ago

Part Details

Documentation

Data Sheet 1

Reliability Data 1

Application Note 3

Design Note 4

Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

Latest Discussions

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