LM334M/NOPB

Current Regulation/Management Overview

The LM334M/NOPB is a three-terminal adjustable current source manufactured by Texas Instruments, housed in an SOIC-8 surface-mount package. It operates within a supply voltage range of 800 mV to 40 V and maintains an output accuracy of ±6%. The device supports an operating temperature range from -40 °C to +85 °C and features a maximum power dissipation capability suitable for general-purpose applications.

Current Regulation/Management Feature Summary

• Provides precise constant current regulation through a single external resistor
• Supports both high-side and low-side sensing configurations
• Operates effectively across a wide input voltage spectrum

Current Regulation/Management Applications

• LED driver circuits requiring stable current regulation
• Battery charging systems with controlled charge rates
• Transistor biasing networks for linear amplifiers

Current Regulation/Management Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pinout compatibility and thermal characteristics. Ensure that the selected variant matches the required operating temperature range and package dimensions for your PCB layout constraints before finalizing procurement.

Current Regulation/Management Selection Notes

Select this component when a compact, surface-mount solution for adjustable constant current sourcing is required. Consider the ±6% accuracy specification and the wide input voltage range when designing circuits that demand stable performance under varying load conditions or supply fluctuations.

Current Regulation/Management Part Context

This part belongs to the LM334 family of precision current sources, which are widely used in analog signal processing and power management applications. The LM334 series offers flexibility in setting current levels via a single resistor, making it a versatile alternative to more complex integrated circuit solutions for basic current regulation tasks.

Current Regulation/Management Replacement Considerations

LM334MX/NOPB

Current Regulation/Management FAQ

How is the output current adjusted?

The output current is set by connecting a single external resistor between the Adjust terminal and the Anode terminal.

What is the minimum operating voltage?

The device can operate with a minimum supply voltage as low as 800 mV.