LTC1727
LTC1727
PRODUCTIONMicropower Precision Triple Supply Monitors in 8-Lead MSOP and 5-Lead SOT-23 Packages
- Part Models
- 12
- 1ku List Price
- Starting From $3.24
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Overview
- Monitors Three Inputs Simultaneously
- LTC1727-5: 5V, 3.3V and ADJ
- LTC1727-2.5: 2.5V, 3.3V and ADJ
- LTC1728-5: 5V, 3.3V and ADJ
- LTC1728-2.5: 2.5V, 3.3V and ADJ
- LTC1728-1.8: 3V, 1.8V and ADJ
- LTC1728-3.3: 3.3V, 1.8V and ADJ
- ±1.5% Threshold Accuracy Over Temperature
- Very Low Supply Current: 10µA Typ
- 200ms Reset Time Delay
- Active Low RESET Output
- Power Supply Glitch Immunity
- Guaranteed RESET for VCC3 ≥ 1V or VCC5/VCC25/VCC18 ≥ 1V
- LTC1727 Includes Monitor Output for Each Supply
- LTC1727: 8-Lead MSOP and SO Packages
- LTC1728: 5-Lead SOT-23 Package
The LTC1727 is a triple supply monitor intended for systems with multiple supply voltages. Each supply monitor has its own open-drain output for individual supply monitoring. A common open-drain reset output remains low until all three supplies have been in compliance for 200ms. Tight 1.5% accuracy specifications and glitch immunity ensure reliable reset operation without false triggering.
The LTC1728 is functionally identical to the LTC1727 without the individual monitor outputs.
The RST output is guaranteed to be in the correct state for VCC5/VCC25/VCC18 or VCC3 down to 1V. The LTC1727/LTC1728 may also be configured to monitor any one or two VCC inputs instead of three, depending on system requirements.
Very low (10µA typical) supply current makes the LTC1727/LTC1728 ideal for power conscious systems.
The LTC1727 is available in an 8-lead MSOP or SO package and the LTC1728 is available in a 5-lead SOT-23 package.
Applications
- Desktop Computers
- Notebook Computers
- Intelligent Instruments
- Portable Battery-Powered Equipment
- Network Servers
Documentation
Data Sheet 1
Technical Articles 1
Product Selector Card 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 |
|---|---|---|---|
| LTC1727EMS8-2.5#PBF | 8-Lead MSOP | ||
| LTC1727EMS8-2.5#TRPBF | 8-Lead MSOP | ||
| LTC1727EMS8-5#PBF | 8-Lead MSOP | ||
| LTC1727EMS8-5#TRPBF | 8-Lead MSOP | ||
| LTC1727ES8-2.5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1727ES8-2.5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1727ES8-5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1727ES8-5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1727IS8-2.5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1727IS8-2.5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1727IS8-5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1727IS8-5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0004 Epoxy Change from Henkel 8290 to 8290A for MSOP (3) |
||
| LTC1727EMS8-2.5#PBF | PRODUCTION | |
| LTC1727EMS8-2.5#TRPBF | PRODUCTION | |
| LTC1727EMS8-5#PBF | PRODUCTION | |
| LTC1727EMS8-5#TRPBF | PRODUCTION | |
|
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC1727EMS8-2.5#PBF | PRODUCTION | |
| LTC1727EMS8-2.5#TRPBF | PRODUCTION | |
| LTC1727EMS8-5#PBF | PRODUCTION | |
| LTC1727EMS8-5#TRPBF | PRODUCTION | |
|
Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| LTC1727ES8-2.5#PBF | PRODUCTION | |
| LTC1727ES8-2.5#TRPBF | PRODUCTION | |
| LTC1727ES8-5#PBF | PRODUCTION | |
| LTC1727ES8-5#TRPBF | PRODUCTION | |
| LTC1727IS8-2.5#PBF | PRODUCTION | |
| LTC1727IS8-2.5#TRPBF | PRODUCTION | |
| LTC1727IS8-5#PBF | PRODUCTION | |
| LTC1727IS8-5#TRPBF | PRODUCTION | |
|
Oct 12, 2022 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LTC1727ES8-2.5#PBF | PRODUCTION | |
| LTC1727ES8-2.5#TRPBF | PRODUCTION | |
| LTC1727ES8-5#PBF | PRODUCTION | |
| LTC1727ES8-5#TRPBF | PRODUCTION | |
| LTC1727IS8-2.5#PBF | PRODUCTION | |
| LTC1727IS8-2.5#TRPBF | PRODUCTION | |
| LTC1727IS8-5#PBF | PRODUCTION | |
| LTC1727IS8-5#TRPBF | PRODUCTION | |
|
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LTC1727ES8-2.5#PBF | PRODUCTION | |
| LTC1727ES8-2.5#TRPBF | PRODUCTION | |
| LTC1727ES8-5#PBF | PRODUCTION | |
| LTC1727ES8-5#TRPBF | PRODUCTION | |
| LTC1727IS8-2.5#PBF | PRODUCTION | |
| LTC1727IS8-2.5#TRPBF | PRODUCTION | |
| LTC1727IS8-5#PBF | PRODUCTION | |
| LTC1727IS8-5#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- LTC1727-2.5
- LTC1727-5
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.