LT1118

PRODUCTION

Low I_Q, Low Dropout, 800mA, Source and Sink Regulators Adjustable and Fixed 2.5V, 2.85V, 5V Output

Part Models: 14
1ku List Price: Starting From $2.96

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Overview

Regulates While Sourcing or Sinking Current
Provides Termination for up to 27 SCSI Lines
600µA Quiescent Current
Ultra-Low Power Shutdown Mode
Current Limit and Thermal Shutdown Protection
Stable for Any C_LOAD ≥ 0.22µF
Fast Settling Time
1V Dropout Voltage

The LT1118 family of low dropout regulators has the unique capability of maintaining output regulation while sourcing or sinking load current. The 2.85V output voltage regulator is ideal for use as a Boulay termination of up to 27 SCSI data lines. The regulator maintains regulation while both sourcing and sinking current, enabling the use of active negation drivers for improved noise immunity on the data lines. Regulation of output voltage is maintained for TERMPWR voltages as low as 4.0V. When unloaded, quiescent supply current is a low 600µA, allowing continuous connection to the TERMPWR lines. An ultralow power shutdown mode is also available on the SO-8 version. In Shutdown the output is high impedance and supply current drops to less than 10µA.

Current limits in both sourcing and sinking modes, plus on-chip thermal shutdown make the circuit tolerant of output fault conditions.

The LT1118 is available in 3-lead SOT-223 and 8-lead SO packages.

Applications

Active Negation SCSI Terminations
Computers
Disk Drives
CD-ROM
Supply Splitter

Part Models: 14
1ku List Price: Starting From $2.96

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
LT1118CS8#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CS8#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CS8-2.5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CS8-2.5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CS8-2.85#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CS8-2.85#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CS8-5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CS8-5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CST-2.5#PBF	3-Lead SOT-223	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CST-2.5#TRPBF	3-Lead SOT-223	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CST-2.85#PBF	3-Lead SOT-223	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CST-2.85#TRPBF	3-Lead SOT-223	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CST-5#PBF	3-Lead SOT-223	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1118CST-5#TRPBF	3-Lead SOT-223	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 8, 2024 - 24_0236 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package
		PCN24_0236_Form Material_Report Marking Comparison Delta Qualification Matrix
LT1118CS8#PBF	PRODUCTION
LT1118CS8#TRPBF	PRODUCTION
LT1118CS8-2.5#PBF	PRODUCTION
LT1118CS8-2.5#TRPBF	PRODUCTION
LT1118CS8-2.85#PBF	PRODUCTION
LT1118CS8-2.85#TRPBF	PRODUCTION
LT1118CS8-5#PBF	PRODUCTION
LT1118CS8-5#TRPBF	PRODUCTION
Oct 12, 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
LT1118CS8#PBF	PRODUCTION
LT1118CS8#TRPBF	PRODUCTION
LT1118CS8-2.5#PBF	PRODUCTION
LT1118CS8-2.5#TRPBF	PRODUCTION
LT1118CS8-2.85#PBF	PRODUCTION
LT1118CS8-2.85#TRPBF	PRODUCTION
LT1118CS8-5#PBF	PRODUCTION
LT1118CS8-5#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
LT1118CS8#PBF	PRODUCTION
LT1118CS8#TRPBF	PRODUCTION
LT1118CS8-2.5#PBF	PRODUCTION
LT1118CS8-2.5#TRPBF	PRODUCTION
LT1118CS8-2.85#PBF	PRODUCTION
LT1118CS8-2.85#TRPBF	PRODUCTION
LT1118CS8-5#PBF	PRODUCTION
LT1118CS8-5#TRPBF	PRODUCTION

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

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LT1118
LT1118-2.5
LT1118-2.85
LT1118-5

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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2 Years Ago

LT1118

Overview

Documentation

Data Sheet 1

Reliability Data 1

Design Note 3

Solutions Bulletin & Brochure 1