LTC1985ES5-1.8#TRMPBF

Supervisors Overview

The LTC1985ES5-1.8#TRMPBF is a micropower precision triple supply monitor featuring push-pull reset outputs, manufactured by Analog Devices Inc. It operates within a voltage range of 2.0V to 5.5V and provides a fixed 1.8V reference threshold for monitoring applications. The device is housed in a compact 5-lead SOT-23 package, suitable for space-constrained designs. It includes an open-drain power-good output and supports active-low or active-high reset configurations via the RESET pin. The component ensures reliable system supervision with low quiescent current consumption.

Supervisors Feature Summary

• Triple supply monitoring capability with dedicated power-good indication
• Push-pull reset output architecture for robust drive strength
• Configurable reset polarity through external resistor selection
• Micropower operation optimized for battery-powered systems

Supervisors Applications

• Portable electronic devices requiring multi-voltage supervision
• Battery-operated equipment needing low-power monitoring
• Embedded systems with multiple logic voltage rails
• Industrial control units requiring reliable power sequencing

Supervisors Procurement Notes

Verify the specific suffix configuration against official Analog Devices documentation to ensure correct reset polarity and threshold settings. Confirm package integrity and lead condition upon receipt. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity. Check for any recent product change notifications that may affect electrical characteristics or packaging specifications before finalizing procurement orders.

Supervisors Selection Notes

Select this component when precise voltage monitoring is required for multiple supply rails in a small footprint. The push-pull reset output eliminates the need for external pull-up resistors, simplifying circuit design. Consider the fixed 1.8V threshold if it aligns with the target supply voltage being monitored. Evaluate the quiescent current requirements against battery life expectations for portable applications.

Supervisors Part Context

This part belongs to the LTC1985 family of micropower supply monitors from Analog Devices. These components are designed for applications requiring accurate voltage supervision with minimal power consumption. The ES5 variant indicates a specific temperature grade and package type within the broader product line, ensuring compatibility with standard surface-mount assembly processes.

Supervisors Replacement Considerations

Consult Analog Devices official documentation for verified substitute part numbers. Ensure any replacement maintains compatible voltage ranges, reset functionality, and package dimensions. Verify electrical parameter equivalence before implementation.