LM385M

Overview

The LM385M is an adjustable shunt voltage reference manufactured by Texas Instruments, housed in an SOIC-8 surface-mount package. It operates within a temperature range of 0°C to +70°C and supports a maximum shunt current of 20 mA. The device provides an adjustable output voltage ranging from 1.24 V to 5.3 V with an initial accuracy of 2% and a temperature coefficient of 150 ppm/°C.

Feature Summary

• Adjustable output voltage capability spanning 1.24 V to 5.3 V
• Micro-power operation suitable for battery-powered applications
• Shunt topology design for stable voltage regulation

Applications

• Portable electronic devices requiring low power consumption
• Battery-operated instrumentation systems
• General-purpose voltage reference circuits

Procurement Notes

Verify the specific suffix (e.g., NOPB) against the manufacturer's datasheet to confirm RoHS compliance and exact electrical tolerances. Ensure the SOIC-8 package footprint matches the PCB layout requirements. Confirm the operating temperature range aligns with the intended environmental conditions before finalizing procurement.

Selection Notes

Select this component when an adjustable reference is required in a compact surface-mount form factor. Compare the 2% initial accuracy and 150 ppm/°C temperature coefficient against stricter precision requirements. Evaluate the 20 mA maximum current limit to ensure it meets the load demands of the specific circuit application.

Part Context

This part belongs to the LM385 series of micro-power shunt voltage references. It serves as a cost-effective solution for basic voltage regulation tasks where high precision is not critical. The SOIC-8 package allows for automated assembly in standard surface-mount manufacturing processes.

Replacement Considerations

LM385MX/NOPB: Identical functional specifications with potential minor packaging or revision differences.