LM236Z-5.0 Voltage Reference

Updated: 2026-09-17

Overview

The LM236Z-5.0 is a precision voltage reference integrated circuit (IC) designed to provide a stable 5.0V output. It is widely used in applications requiring accurate voltage regulation, such as power supplies, analog-to-digital converters (ADCs), and digital-to-analog converters (DACs). The device is known for its low temperature coefficient and high initial accuracy, making it suitable for industrial and consumer electronics. Manufactured using semiconductor technology, the LM236Z-5.0 is available in a TO-92 package, which is easy to integrate into various circuit designs. Its robust performance under varying load conditions and temperatures ensures reliability in demanding environments.

Structure and Working Principle

The LM236Z-5.0 operates based on a bandgap reference principle, which compensates for temperature variations to maintain a stable output voltage. The IC consists of a precision voltage reference core, trimming circuitry, and an output buffer. The internal design minimizes output drift over temperature and time. When powered, the IC compares the internal reference voltage to the output and adjusts it to maintain the specified 5.0V. This self-regulating mechanism ensures consistent performance even with fluctuations in input voltage or load conditions. The device typically requires a minimum input voltage of 7V to operate effectively.

Key Features

The LM236Z-5.0 offers several key features that make it a preferred choice for voltage reference applications. Its initial accuracy is typically ±0.5%, ensuring precise voltage regulation. The temperature coefficient is low, often around 50 ppm/°C, which minimizes voltage variations across operating temperatures. Additionally, the device has a low dynamic impedance, enhancing its stability under varying load conditions. It is designed to operate over a wide temperature range, typically from -40°C to +85°C, making it suitable for both industrial and automotive applications. The TO-92 package provides ease of mounting and thermal performance.

Application Areas

The LM236Z-5.0 is used in a variety of applications where a stable voltage reference is critical. Common uses include power supply regulation, where it ensures consistent voltage levels for sensitive electronics. It is also employed in data conversion systems, such as ADCs and DACs, to maintain accuracy in signal processing. Other applications include measurement and instrumentation equipment, where precise voltage references are essential for calibration and accuracy. The IC is also found in automotive electronics, medical devices, and communication systems, thanks to its reliability and performance under harsh conditions.

Maintenance and Precautions

To ensure optimal performance and longevity of the LM236Z-5.0, certain precautions should be observed. Avoid exceeding the maximum input voltage or current ratings, as this can damage the device. Proper heat dissipation is recommended, especially in high-temperature environments, to prevent thermal runaway. When designing circuits, ensure adequate decoupling capacitors are used near the IC to minimize noise and stabilize the output voltage. Storage conditions should be dry and within the specified temperature range to prevent moisture absorption or thermal stress. Regularly inspect the device for signs of physical damage or degradation.

B2B Procurement Guide

When procuring the LM236Z-5.0 in bulk, consider factors such as lead time, supplier reliability, and pricing. Verify the manufacturer's specifications to ensure compatibility with your application. Bulk purchases often qualify for discounts, so negotiate with suppliers for cost-effective deals. It is advisable to source from authorized distributors to avoid counterfeit products. Check for certifications such as RoHS compliance if environmental regulations apply. Sample testing before large-scale procurement can help verify performance and quality. Maintain a buffer stock to mitigate supply chain disruptions.