LM385B-2.5

Overview

The LM385B-2.5 is a micropower, two-terminal band-gap voltage reference manufactured by TAEJIN Technology. It provides a fixed output voltage of 2.5V with an initial accuracy of 1%. The device operates within a current range of 20 μA to 20 mA and features low noise characteristics alongside long-term stability due to on-chip trimming. It is housed in a TO-92-3 package and supports an operating temperature range of -40°C to 85°C.

Feature Summary

• Micropower two-terminal band-gap design
• On-chip trimming for tight voltage tolerance
• Low noise and long-term stability

Applications

• Precision measurement systems
• Portable instrumentation
• Battery-powered devices

Procurement Notes

Verify the manufacturer designation as TAEJIN Technology, distinct from Texas Instruments variants. Confirm the specific suffix indicates the 1% tolerance grade and TO-92-3 package. Ensure the operating temperature range matches the -40°C to 85°C specification required for your application environment before finalizing procurement.

Selection Notes

Select this component when a stable 2.5V reference is needed with minimal power consumption. The 1% initial accuracy suits applications requiring moderate precision without complex calibration. The TO-92-3 package facilitates through-hole mounting for prototyping or low-volume production where surface mount options are not preferred.

Part Context

This part belongs to the LM385 family of shunt voltage references. It shares functional similarities with the LM285 and standard LM385 series but offers improved accuracy grades. The B suffix typically denotes tighter tolerance specifications compared to the base model, making it suitable for higher precision analog circuits.

Replacement Considerations

LM385BYZ-2.5/NOPB (Texas Instruments) offers similar 2.5V performance in a TO-92-3 package. Verify pinout compatibility and thermal characteristics when substituting. Ensure the replacement meets the same 20 μA to 20 mA operating current requirements.