LTC1258CS8#PBF

Voltage Reference Overview

The LTC1258CS8#PBF is a micropower bandgap voltage reference in an 8-lead SOIC package. It provides a nominal output of 3V with a maximum initial accuracy of 0.15% and a temperature coefficient of 40ppm/°C over the 0°C to 70°C range. The device features a typical quiescent current of 4μA and a maximum dropout voltage of 200mV at 10mA output current. It can source up to 10mA and sink up to 2mA, operating with input voltages from VOUT + 0.2V to 12.6V.

Voltage Reference Feature Summary

• Combines high accuracy and low drift with very low supply current and small package size
• Features ultralow quiescent current and low dropout voltage ideal for battery-powered equipment
• Capable of sourcing 10mA and sinking 2mA for precision regulator applications
• Stable without an output bypass capacitor while maintaining fast settling times

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'S8' confirms the 8-lead plastic SOIC package variant rather than MSOP. Confirm the '#PBF' designation indicates lead-free finish compliance. Ensure the part number matches the required 3V fixed output specification within the series. Check datasheet revisions for any updates regarding absolute maximum ratings or thermal characteristics before finalizing procurement specifications.

Voltage Reference Selection Notes

Select this component when a fixed 3V reference is required in an SOIC-8 footprint. It is suitable for designs needing low quiescent current and minimal board space. Consider the 40ppm/°C temperature coefficient for the specified operating range. Evaluate if the 10mA sourcing capability meets load requirements compared to lower-current shunt references.

Voltage Reference 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, 4.1V, and 5V. Variants are available in both MSOP and SO packages. The series utilizes curvature compensation and trimmed thin-film resistors to achieve performance specifications.

Voltage Reference Replacement Considerations

LTC1258CMS8-3#PBF (MSOP package equivalent)

Voltage Reference FAQ

Is an output bypass capacitor required for stability?

No, the LTC1258 series is stable without an output bypass capacitor, though it remains stable with capacitance up to 1μF.

What is the maximum input voltage allowed?

The maximum input voltage is 12.6V, provided it does not exceed the absolute maximum rating of 13V.