LT1118
LT1118
PRODUCTIONLow IQ, Low Dropout, 800mA, Source and Sink Regulators Adjustable and Fixed 2.5V, 2.85V, 5V Output
- Part Models
- 14
- 1ku List Price
- Starting From $3.74
Viewing:
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 CLOAD ≥ 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
Documentation
Data Sheet 1
Design Note 3
Brochure 1
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) | ||
| LT1118CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1118CS8-2.5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1118CS8-2.5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1118CS8-2.85#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1118CS8-2.85#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1118CS8-5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1118CS8-5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1118CST-2.5#PBF | 3-Lead SOT-223 | ||
| LT1118CST-2.5#TRPBF | 3-Lead SOT-223 | ||
| LT1118CST-2.85#PBF | 3-Lead SOT-223 | ||
| LT1118CST-2.85#TRPBF | 3-Lead SOT-223 | ||
| LT1118CST-5#PBF | 3-Lead SOT-223 | ||
| LT1118CST-5#TRPBF | 3-Lead SOT-223 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 8, 2024 - 24_0236 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| 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) |
||
| 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 |
||
| 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.
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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.