LM385BD-2.5R2G

Overview

The LM385BD-2.5R2G is a micropower two-terminal bandgap voltage reference diode manufactured by onsemi. It provides a fixed nominal output voltage of 2.5V with an operating current range from 10µA to 20mA. The device features low dynamic impedance and low noise, ensuring stable operation over time and temperature. It is available in surface-mount packages, specifically the SOIC-8 (SOP-8) configuration, and includes lead-free packaging options compliant with environmental standards.

Feature Summary

• Micropower two-terminal bandgap voltage regulator diode design
• Low dynamic impedance and low noise for stable performance
• Tight initial voltage tolerance achieved through on-chip trimming
• Wide dynamic operating range suitable for varying supply conditions

Applications

• Portable instrumentation circuits requiring extended battery life
• Micropower regulators and power management systems
• Analog circuitry demanding precise voltage references
• Battery-powered devices with widely varying supply voltages

Procurement Notes

Verify that the specific part number matches the required package type and tolerance grade. Confirm lead-free status if environmental compliance is mandatory. Ensure the supplier provides documentation confirming the manufacturer is onsemi. Check for any specific handling requirements associated with surface-mount components during assembly.

Selection Notes

Select this component when a fixed 2.5V reference with micropower consumption is required. Consider the wide operating current range for applications with significant load variations. Evaluate the surface-mount package suitability for the target PCB layout. Compare initial tolerance grades against application precision needs.

Part Context

This device belongs to the LM385 series of micropower voltage reference diodes. The series is designed for applications where low power consumption and high stability are critical. The BD suffix typically indicates a specific package variant, while the R2G denotes reel packaging and lead-free composition within the onsemi product line.

Replacement Considerations

Compatible substitutes include other LM385 variants from different manufacturers such as TI or NXP, provided they match the 2.5V output, SOIC-8 package, and electrical characteristics. Verify pinout compatibility and thermal performance before substitution.