LTC1258CMS8-5#TRPBF

Overview

The Analog Devices LTC1258CMS8-5#TRPBF is a micropower bandgap voltage reference in an 8-lead MSOP package. It provides a fixed 5V output with a maximum initial accuracy of 0.18% and a temperature coefficient of 60 ppm/°C over the 0°C to +70°C range. The device features a maximum dropout voltage of 200mV at 10mA load current and draws only 4μA typical quiescent current. It supports sourcing up to 10mA and sinking up to 2mA, operating within an input voltage range of 5.2V to 12.6V.

Feature Summary

• Combines high accuracy and low drift with ultralow quiescent current for battery-powered applications
• Capable of sourcing 10mA and sinking 2mA without requiring an output bypass capacitor
• Utilizes curvature compensation and trimmed thin-film resistors for precision performance

Applications

• Battery-powered systems
• Handheld instruments
• Precision power supplies
• A/D and D/A converters

Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging versus tube options. Confirm the CMS8 designation matches the required MSOP-8 package type and commercial temperature range. Ensure the -5 suffix corresponds to the 5V fixed output variant. Cross-reference the manufacturer part number against official Analog Devices documentation to validate availability status and lead-free finish specifications.

Selection Notes

Select this component when a fixed 5V reference is required with minimal supply current consumption. The low dropout characteristic allows operation from voltages close to the output level. Consider the 60 ppm/°C temperature coefficient and 0.18% initial accuracy limits for circuit precision requirements. Verify that the 10mA source and 2mA sink capabilities meet the load demands of the target application.

Part Context

This part belongs to the LTC1258 series of micropower low dropout references. The series includes adjustable and fixed voltage options such as 2.5V, 3V, and 4.1V variants. All members share similar architectural features including internal P-channel pass transistors and curvature compensation. The series is designed to offer power dissipation advantages over traditional shunt references.

Replacement Considerations

LTC1258CMS8-5#PBF is the tube version of this component.