LTC1148

PRODUCTION

High Efficiency Synchronous Step-Down Switching Regulators

Data Sheet

Part Models: 24
1ku List Price: Starting From $6.36

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Part Details

Ultra-High Efficiency: Over 95% Possible
Current-Mode Operation for Excellent Line and Load Transient Response
High Efficiency Maintained Over Three Decades of Output Current
Low 160µA Standby Current at Light Loads
Logic Controlled Micropower Shutdown: I_Q <20µA
Wide V_IN Range: 3.5V to 20V
Short-Circuit Protection
Very Low Dropout Operation: 100% Duty Cycle
Synchronous FET Switching for High Efficiency
Adaptive Nonoverlap Gate Drives
Output Can Be Externally Held High in Shutdown
Available in 14-Pin Narrow SO Package

Part Models: 24
1ku List Price: Starting From $6.36

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
LTC1148CN#PBF	14-Lead PDIP (Narrow 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148CN-3.3#PBF	14-Lead PDIP (Narrow 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148CN-5#PBF	14-Lead PDIP (Narrow 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148CS#PBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148CS#TRPBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148CS-3.3#PBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148CS-3.3#TRPBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148CS-5#PBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148CS-5#TRPBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVCN#PBF	14-Lead PDIP (Narrow 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVCN-3.3#PBF	14-Lead PDIP (Narrow 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVCN-5#PBF	14-Lead PDIP (Narrow 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVCS#PBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVCS#TRPBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVCS-3.3#PBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVCS-3.3#TRPBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVCS-5#PBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVCS-5#TRPBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVIS-5#PBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148HVIS-5#TRPBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148LCS#PBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148LCS#TRPBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148LCS-3.3#PBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1148LCS-3.3#TRPBF	14-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN
No Match Found
Oct 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package
		PCN22_0241_Form Material_Report Qualification Results Summary
LTC1148CN#PBF	PRODUCTION
LTC1148CN-3.3#PBF	PRODUCTION
LTC1148CN-5#PBF	PRODUCTION
LTC1148HVCN#PBF	PRODUCTION
LTC1148HVCN-3.3#PBF	PRODUCTION
LTC1148HVCN-5#PBF	PRODUCTION
Aug 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]
		PCN22_0172_Form Material_Report Delta Qualification Matrix
LTC1148CN#PBF	PRODUCTION
LTC1148CN-5#PBF	PRODUCTION
LTC1148HVCN#PBF	PRODUCTION
LTC1148HVCN-3.3#PBF	PRODUCTION
LTC1148HVCN-5#PBF	PRODUCTION
Oct 12, 2022 - 22_0251 Epoxy Change from Henkel 8290 to 8290A for 14-Lead SOIC Package
		PCN22_0251_Form Material_Report Qualification Results Summary
LTC1148CS#PBF	PRODUCTION
LTC1148CS#TRPBF	PRODUCTION
LTC1148CS-3.3#PBF	PRODUCTION
LTC1148CS-3.3#TRPBF	PRODUCTION
LTC1148CS-5#PBF	PRODUCTION
LTC1148CS-5#TRPBF	PRODUCTION
LTC1148HVCS#PBF	PRODUCTION
LTC1148HVCS#TRPBF	PRODUCTION
LTC1148HVCS-3.3#PBF	PRODUCTION
LTC1148HVCS-3.3#TRPBF	PRODUCTION
LTC1148HVCS-5#PBF	PRODUCTION
LTC1148HVCS-5#TRPBF	PRODUCTION
LTC1148HVIS-5#PBF	PRODUCTION
LTC1148HVIS-5#TRPBF	PRODUCTION
LTC1148LCS#PBF	PRODUCTION
LTC1148LCS#TRPBF	PRODUCTION
LTC1148LCS-3.3#PBF	PRODUCTION
LTC1148LCS-3.3#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
LTC1148CS#PBF	PRODUCTION
LTC1148CS#TRPBF	PRODUCTION
LTC1148CS-3.3#PBF	PRODUCTION
LTC1148CS-3.3#TRPBF	PRODUCTION
LTC1148CS-5#PBF	PRODUCTION
LTC1148CS-5#TRPBF	PRODUCTION
LTC1148HVCS#PBF	PRODUCTION
LTC1148HVCS#TRPBF	PRODUCTION
LTC1148HVCS-3.3#PBF	PRODUCTION
LTC1148HVCS-3.3#TRPBF	PRODUCTION
LTC1148HVCS-5#PBF	PRODUCTION
LTC1148HVCS-5#TRPBF	PRODUCTION
LTC1148HVIS-5#PBF	PRODUCTION
LTC1148HVIS-5#TRPBF	PRODUCTION
LTC1148LCS#PBF	PRODUCTION
LTC1148LCS#TRPBF	PRODUCTION
LTC1148LCS-3.3#PBF	PRODUCTION
LTC1148LCS-3.3#TRPBF	PRODUCTION

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

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC1148
LTC1148-3.3
LTC1148-5
LTC1148HV
LTC1148HV-3.3
LTC1148HV-5
LTC1148L
LTC1148L-3.3

LTpowerCAD

Design tools for the following parts are available in LTpowerCAD:

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.