LTC2903-1
LTC2903-1
PRODUCTIONPrecision Quad Supply Monitor in 6-Lead SOT-23
- Part Models
- 20
- 1ku List Price
- Starting From $2.90
Viewing:
Overview
- Ultralow Voltage Reset: VCC = 0.5V Guaranteed
- Monitor Four Inputs Simultaneously
- 3.3V, 2.5V, 1.8V, ADJ (LTC2903-A1)
- 5V, 3.3V, 2.5V, 1.8V (LTC2903-B1)
- 5V, 3.3V, 1.8V, –5.2V (LTC2903-C1)
- 3.3V, ADJ, ADJ, ADJ (LTC2903-D1)
- 5V, ADJ, ADJ, ADJ (LTC2903-E1)
- Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage over Temperature
- 10% (A1, B1, C1) and 5% (D1, E1) Undervoltage Monitoring
- Low Supply Current: 20µA Typical
- 200ms Reset Time Delay
- Active Low Open-Drain RST Output
- Power Supply Glitch Immunity
- Low Profile (1mm) SOT-23 (ThinSOT™) Package
The LTC2903-1 monitors up to four supply voltages. The common reset output remains low until all four inputs have been in compliance for 200ms. Voltage thresholds maintain ±1.5% accuracy over temperature (with respect to the monitored voltage). The LTC2903-1 features an open-drain RST output with a weak internal pullup.
Internal supply voltage (VCC) is generated from the greater voltage on the V1, V2 inputs. VCC = V1 for LTC2903-D1 and LTC2903-E1. The RST output is guaranteed to sink at least 5µA (VOL = 0.15V) for VCC down to 0.5V and will typically conduct current down to 0V. Quiescent current is 20µA typical, making the LTC2903-1 ideal for power conscious systems. The LTC2903-1 is available in a 6-lead low profile (1mm) SOT-23 package.
Applications
- Multivoltage Systems
- Optical Networking Systems
- Cell Phone Base Stations
- 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 |
|---|---|---|---|
| LTC2903CS6-A1#TRMPBF | 6-Lead TSOT-23 | ||
| LTC2903CS6-A1#TRPBF | 6-Lead TSOT-23 | ||
| LTC2903CS6-B1#TRMPBF | 6-Lead TSOT-23 | ||
| LTC2903CS6-B1#TRPBF | 6-Lead TSOT-23 | ||
| LTC2903CS6-C1#TRMPBF | 6-Lead TSOT-23 | ||
| LTC2903CS6-C1#TRPBF | 6-Lead TSOT-23 | ||
| LTC2903CS6-D1#TRMPBF | 6-Lead TSOT-23 | ||
| LTC2903CS6-D1#TRPBF | 6-Lead TSOT-23 | ||
| LTC2903CS6-E1#TRMPBF | 6-Lead TSOT-23 | ||
| LTC2903CS6-E1#TRPBF | 6-Lead TSOT-23 | ||
| LTC2903IS6-A1#TRMPBF | 6-Lead TSOT-23 | ||
| LTC2903IS6-A1#TRPBF | 6-Lead TSOT-23 | ||
| LTC2903IS6-B1#TRMPBF | 6-Lead TSOT-23 | ||
| LTC2903IS6-B1#TRPBF | 6-Lead TSOT-23 | ||
| LTC2903IS6-C1#TRMPBF | 6-Lead TSOT-23 | ||
| LTC2903IS6-C1#TRPBF | 6-Lead TSOT-23 | ||
| LTC2903IS6-D1#TRMPBF | 6-Lead TSOT-23 | ||
| LTC2903IS6-D1#TRPBF | 6-Lead TSOT-23 | ||
| LTC2903IS6-E1#TRMPBF | 6-Lead TSOT-23 | ||
| LTC2903IS6-E1#TRPBF | 6-Lead TSOT-23 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Power System Management (PSM) & Sequencers 1 | ||
| LTC2974 | RECOMMENDED FOR NEW DESIGNS | 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement |
| Temperature Sensors 1 | ||
| LTC2991 | RECOMMENDED FOR NEW DESIGNS | Octal I2C Voltage, Current, and Temperature Monitor |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTC2903-A1
- LTC2903-B1
- LTC2903-C1
- LTC2903-D1
- LTC2903-E1
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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