LTC1258CS8-5#PBF

Overview

The LTC1258CS8-5#PBF is a micropower bandgap voltage reference in an 8-lead SOIC package. It provides a fixed 5V output with a maximum initial accuracy of 0.15% and a temperature coefficient of 40ppm/°C. The device features a maximum dropout voltage of 200mV at 10mA output 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

• Micropower series architecture utilizing curvature compensation for low drift
• Low dropout capability enabled by internal P-channel pass transistor
• Capable of sourcing 10mA and sinking 2mA without external components
• Stable operation with or without output bypass capacitors

Applications

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

Procurement Notes

Verify the specific suffix 'CS8' corresponds to the commercial temperature range (0°C to 70°C) and SOIC-8 package. Confirm '#PBF' indicates lead-free finish. Check manufacturer documentation for obsolescence status or tape-and-reel alternatives like LTC1258CS8-5#TRPBF if reel packaging is required.

Selection Notes

Select this component when a fixed 5V reference is needed with high accuracy and low quiescent current. Ensure the application requires sourcing up to 10mA. Verify that the input voltage remains above the nominal output plus the 200mV dropout requirement across all operating conditions.

Part Context

This part belongs to the LTC1258 series of micropower low dropout references. The series includes adjustable versions and other fixed voltages such as 2.5V, 3V, and 4.1V. All variants share similar electrical characteristics regarding quiescent current and dropout performance, differing primarily in output voltage and package options.

Replacement Considerations

LTC1258CS8-5#TRPBF is the tape and reel version of this component.