LM285BXZ

$1.30

Description：VOLTAGE REFERENCE
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:349cf0f60c43 Category: Voltage Reference Brand: National Semiconductor

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Product introduction

Product Detailed Parameters

Description：VOLTAGE REFERENCE
Series：-
Mfr：National Semiconductor
Package：Bulk
Output Type：Adjustable
Voltage - Output (Min/Fixed)：1.24V
Voltage - Output (Max)：5.3 V
Current - Output：20 mA
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package：TO-92-3
Grade：-
Qualification：-

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LM285BXZ

Overview

The LM285BXZ is an adjustable micropower voltage reference diode manufactured by Texas Instruments, formerly National Semiconductor. It operates within a shunt configuration using a two-terminal bandgap architecture. The device provides an output voltage range from 1.24 V to 5.3 V. Initial accuracy is specified at 2%. The temperature coefficient is 150 PPM/°C. Maximum shunt current is 20 mA, with a minimum operating current of 10 µA. It functions between -40°C and +85°C. The component is housed in a TO-92-3 through-hole package.

Feature Summary

Adjustable output voltage capability via external resistors
Micropower operation suitable for battery-powered applications
Low dynamic impedance for stable regulation

Applications

Portable instrumentation
Battery-operated regulators
Analog circuitry requiring extended battery life

Procurement Notes

Verify the manufacturer designation carefully, as the LM285 series was originally developed by National Semiconductor and is now produced by Texas Instruments. Confirm that the specific suffix 'BXZ' corresponds to the TO-92-3 package and the 2% tolerance grade required for your design. Ensure compatibility with the -40°C to +85°C industrial temperature range specifications before finalizing procurement orders.

Selection Notes

Select this component when an adjustable voltage reference is needed with low power consumption. It is appropriate for designs requiring a stable reference over a wide current range from 10 µA to 20 mA. Consider the 150 PPM/°C temperature coefficient if high precision across extreme temperatures is not critical. The TO-92 package is suitable for through-hole prototyping or low-volume production.

Part Context

The LM285 series belongs to the family of micropower two-terminal bandgap voltage regulator diodes. These devices are designed for applications where low operating current and stable performance over time and temperature are essential. The series features tight voltage tolerances achieved through on-chip trimming, allowing use in circuits with widely varying supply voltages while maintaining excellent regulation.