LM4132AMF-3.3/NOPB

Voltage Reference Overview

The LM4132AMF-3.3/NOPB is a precision series voltage reference IC manufactured by Texas Instruments, housed in a compact SOT-23-5 surface-mount package. It provides a fixed output voltage of 3.3 V with an initial accuracy of ±0.05%. The device features a low temperature coefficient of 20 ppm/°C and supports a maximum shunt current of 20 mA. It operates within an input voltage range up to 6 V and functions reliably across an extended temperature range from -40°C to +125°C.

Voltage Reference Feature Summary

• Delivers high-precision voltage regulation with tight initial accuracy tolerances for sensitive analog circuits.
• Incorporates a shutdown enable feature to minimize power consumption during inactive periods.
• Utilizes a low-dropout architecture suitable for battery-powered applications requiring efficient power management.

Voltage Reference Applications

• Precision data acquisition systems requiring stable reference voltages
• Portable instrumentation powered by single-cell batteries
• Medical devices demanding high accuracy and low power operation

Voltage Reference Procurement Notes

Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and specific trim options. Confirm the AM grade designation matches the required 20 ppm/°C drift specification. Check the SOT-23-5 footprint compatibility against your PCB design guidelines. Ensure the operating environment stays within the specified -40°C to +125°C thermal limits for reliable performance.

Voltage Reference Selection Notes

Select this component when a fixed 3.3 V reference with high initial accuracy is required in a small form factor. The AM grade offers superior temperature stability compared to standard grades. Consider the 20 mA current limit for load requirements. The shutdown pin allows for system-level power optimization. Verify that the 6 V maximum input voltage accommodates your supply rail variations.

Voltage Reference Part Context

This device belongs to the LM4132 family of precision voltage references designed for space-constrained applications. The LM4132 series integrates a bandgap reference core with output buffering. The SOT-23-5 package enables cost-effective assembly in portable electronics. The NOPB suffix indicates non-halogenated and lead-free construction compliant with environmental standards.

Voltage Reference Replacement Considerations

LM4132EMF-3.3/NOPB: Offers similar functionality but may differ in initial accuracy or temperature coefficient specifications. Verify electrical parameters before substitution. LM4132DMF-3.3/NOPB: Alternative grade with potentially different drift characteristics. Ensure pinout compatibility and thermal performance meet application requirements.