LT1111

PRODUCTION

Micropower DC/DC Converter Adjustable and Fixed 5V, 12V

Data Sheet Product Selection Table

Part Models: 11
1ku List Price: Starting From $3.08

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Part Details

Operates at Supply Voltages from 2V to 30V
Works with Surface Mount Inductors
72kHz Oscillator
Only Three External Components Required
Step-Up or Step-Down Mode
Low-Battery Detector Comparator On-Chip
User Adjustable Current Limit
Internal 1A Power Switch
Fixed or Adjustable Output Voltage Versions
Space Saving 8-Pin MiniDIP or SO-8 Package

Part Models: 11
1ku List Price: Starting From $3.08

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
LT1111CN8#PBF	8-Lead PDIP (Narrow 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1111CN8-12#PBF	8-Lead PDIP (Narrow 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1111CN8-5#PBF	8-Lead PDIP (Narrow 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1111CS8#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1111CS8#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1111CS8-12#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1111CS8-12#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1111CS8-5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1111CS8-5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1111IS8#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1111IS8#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 8, 2024 - 24_0234 Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package
		PCN24_0234_Form Material_Report Marking Comparison
LT1111CN8#PBF	PRODUCTION
LT1111CN8-12#PBF	PRODUCTION
LT1111CN8-5#PBF	PRODUCTION
Oct 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package
		PCN22_0241_Form Material_Report Qualification Results Summary
LT1111CN8#PBF	PRODUCTION
LT1111CN8-12#PBF	PRODUCTION
LT1111CN8-5#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
LT1111CN8#PBF	PRODUCTION
LT1111CN8-12#PBF	PRODUCTION
LT1111CN8-5#PBF	PRODUCTION
Nov 14, 2022 - 22_0254 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)
		PCN22_0254_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT1111CS8#PBF	PRODUCTION
LT1111CS8#TRPBF	PRODUCTION
Jun 11, 2021 - 21_0060 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
		PCN21_0060_Form Material_Report Delta Qualification Matrix
LT1111CS8#PBF	PRODUCTION
LT1111CS8#TRPBF	PRODUCTION
LT1111CS8-12#PBF	PRODUCTION
LT1111CS8-12#TRPBF	PRODUCTION
LT1111CS8-5#PBF	PRODUCTION
LT1111CS8-5#TRPBF	PRODUCTION
LT1111IS8#PBF	PRODUCTION
LT1111IS8#TRPBF	PRODUCTION
Dec 14, 2023 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)
		PCN22_0255_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT1111CS8-12#PBF	PRODUCTION
LT1111CS8-12#TRPBF	PRODUCTION
LT1111CS8-5#PBF	PRODUCTION
LT1111CS8-5#TRPBF	PRODUCTION
LT1111IS8#PBF	PRODUCTION
LT1111IS8#TRPBF	PRODUCTION

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

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Tools & Simulations

LTspice 1

LT1111 Demo Circuit - µPower DC/DC Converter (3V to 5V @ 100mA)

Models for the following parts are available in LTspice:

LT1111
LT1111-12
LT1111-5

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.

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Part Details

Documentation

Data Sheet 1

Reliability Data 1

Application Note 3

Design Note 1