LTC2903CS6-B1#TRMPBF

Supervisors Overview

The LTC2903CS6-B1#TRMPBF is a supervisory circuit manufactured by Analog Devices Inc., designed for monitoring multiple voltage rails in compact electronic systems. It features four independent input channels capable of detecting under-voltage and over-voltage conditions, ensuring system integrity through precise threshold detection. The device operates within a supply voltage range of 2.7 V to 5.5 V and draws a typical quiescent current of 20 µA, making it suitable for power-sensitive applications. Packaged in a space-saving SOT-23-6 outline, it provides an active-low reset output with a fixed delay time to prevent false triggering during transient events.

Supervisors Feature Summary

• Four independent voltage monitoring inputs for comprehensive system supervision
• Active-low reset output with programmable or fixed delay characteristics
• Ultra-low quiescent current consumption for energy-efficient operation
• Compact surface-mount packaging optimized for dense PCB layouts

Supervisors Applications

• Portable battery-powered equipment requiring multi-rail supervision
• Industrial control systems needing reliable voltage monitoring
• Communication infrastructure with strict power management requirements

Supervisors Procurement Notes

Verify the specific suffix B1 against official Analog Devices documentation to confirm threshold configurations and electrical specifications. Ensure compatibility with existing board designs regarding pinout and thermal performance. Confirm availability status as distribution channels may report limited stock or end-of-life notices. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Supervisors Selection Notes

Select this component when designing systems that require simultaneous monitoring of four distinct voltage levels within a minimal footprint. Consider the 20 µA quiescent current for battery life optimization. Evaluate the SOT-23-6 package constraints against available board space. Verify that the reset delay timing meets the system's startup sequence requirements without external components.

Supervisors Part Context

This part belongs to the LTC2903 series of supervisory circuits from Analog Devices, which are engineered for precision voltage monitoring in portable and industrial applications. The CS6 designation indicates the commercial temperature range and SOT-23-6 package type. The TRMPBF suffix specifies the tape and reel packaging format with lead-free termination, aligning with modern manufacturing standards.

Supervisors Replacement Considerations

Consult Analog Devices datasheets for direct replacements within the LTC2903 family, such as variants with different threshold voltages or reset delays. Verify pin-to-pin compatibility before substitution. Check for updated revisions or alternative packages if the current part is discontinued.