LT1120A
LT1120A
NOT RECOMMENDED FOR NEW DESIGNSMicropower Regulator with Comparator and Shutdown
- Part Models
- 5
- 1ku List Price
- Starting From $4.78
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Overview
- 20µA Supply Current
- 125mA Output Current
- 2.5V Reference
- Reference Output Sources 4mA and Sinks 4mA
- Open Collector Comparator Sinks 10mA
- Logic Shutdown
- 0.2V Dropout Voltage
- Thermal Limiting
- 8-Lead SO Package
The LT1120A is a combination micropower positive regulator and free collector comparator on a single monolithic chip. With only 20µA supply current, the LT1120A can supply over 125mA of output current. Input voltage range is from 4.5V to 36V and dropout voltage is 0.6V at 125mA. Dropout voltage decreases with lower load currents.Also included on the chip is a class B output 2.5V reference that can either source or sink current. This allows it to be used as a supply splitter or auxiliary output. A shutdown pin allows logic shutdown of the output.
The comparator can be used for system or battery monitoring. For example, the comparator can be used to warn of low system voltage. Frequency compensation of the comparator for amplifier applications can be obtained by adding external output capacitance.
| No Load Quiescent Current | |
| LT1120 | 80uA |
| LT1120A | 30uA |
Applications
- Battery Systems
- Battery Backup System
- Portable Terminals
- Portable Instruments
- Memory Keep Alive
Documentation
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 |
|---|---|---|---|
| LT1120ACN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
| LT1120ACS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1120ACS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1120AIS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1120AIS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 8, 2024 - 24_0234 Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package |
||
| LT1120ACN8#PBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package |
||
| LT1120ACN8#PBF | PRODUCTION | |
|
Aug 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG] |
||
| LT1120ACN8#PBF | PRODUCTION | |
|
Oct 8, 2024 - 24_0236 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| LT1120ACS8#PBF | PRODUCTION | |
| LT1120ACS8#TRPBF | PRODUCTION | |
| LT1120AIS8#PBF | PRODUCTION | |
| LT1120AIS8#TRPBF | PRODUCTION | |
|
Oct 12, 2022 - 22_0254 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2) |
||
| LT1120ACS8#PBF | PRODUCTION | |
| LT1120ACS8#TRPBF | PRODUCTION | |
| LT1120AIS8#PBF | PRODUCTION | |
| LT1120AIS8#TRPBF | PRODUCTION | |
|
Jun 11, 2021 - 21_0060 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LT1120ACS8#PBF | PRODUCTION | |
| LT1120ACS8#TRPBF | PRODUCTION | |
| LT1120AIS8#PBF | PRODUCTION | |
| LT1120AIS8#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
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