LT1009ILPR

Voltage Reference Overview

The LT1009ILPR is a precision shunt voltage reference manufactured by Texas Instruments, delivering a nominal output of 2.5 V. It features an initial accuracy of ±0.2% and a temperature coefficient of 25 PPM/°C. The device operates within a junction temperature range of -40°C to +85°C and supports a shunt current range from 400 µA to 10 mA. Packaged in a TO-92-3 through-hole format, it is supplied in reel, cut tape, or MouseReel configurations.

Voltage Reference Feature Summary

• On-chip trimming minimizes initial voltage tolerance and temperature drift without requiring external adjustments.
• A third terminal allows the reference voltage to be adjusted ±5% to calibrate out system errors.
• Low dynamic impedance and wide operating current range enhance versatility in various circuit applications.

Voltage Reference Applications

• Pin-to-pin replacement for LM136 with elimination of external trim networks.
• Precision analog circuits requiring stable 2.5V references.
• Data acquisition systems needing low-drift voltage standards.

Voltage Reference Procurement Notes

Verify the specific suffix (ILPR) against the manufacturer's latest datasheet to confirm package type and packaging configuration. Ensure compatibility with existing PCB footprints for TO-92-3 through-hole mounting. Cross-reference RoHS compliance status and lead-free specifications with current product change notifications before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when a fixed 2.5V reference with ±0.2% initial accuracy is required in a through-hole package. Consider the 25 PPM/°C temperature coefficient for thermal stability needs. Verify that the application current stays within the 400 µA to 10 mA operating range to maintain regulation performance.

Voltage Reference Part Context

Part of the LT1009 series of precision trimmed 2.5V shunt regulator diodes. The ILPR suffix denotes the TO-92-3 through-hole package variant supplied in bulk packaging formats such as reels or cut tapes, distinct from surface-mount options like the ID or CD series.

Voltage Reference Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. The datasheet notes potential pin-to-pin replacement for the LM136, but specific cross-references for the ILPR suffix should be verified via official TI resources.