LM4132BMF-3.0

Voltage Reference Overview

The LM4132BMF-3.0 is a precision series voltage reference manufactured by Texas Instruments, housed in a 5-pin SOT-23 package. It provides a fixed output voltage of 3 V with an initial accuracy of ±0.1%. The device operates within a temperature range of -40°C to +125°C and features a maximum temperature coefficient of 20 ppm/°C across the full operating range. It supports a maximum input voltage of 5.5 V and delivers up to 20 mA of load current while consuming only 60 µA of supply current.

Voltage Reference Feature Summary

• Utilizes EEPROM registers for curvature correction and package-level programming to maintain high accuracy despite assembly shifts.
• Features an enable pin that allows switching to a low-power shutdown mode with minimal quiescent current consumption.
• Capable of delivering high output current without requiring an external output capacitor or buffer amplifier.

Voltage Reference Applications

• Instrumentation and process control systems
• Data acquisition systems
• Portable battery-powered equipment
• Precision regulators

Voltage Reference Procurement Notes

Verify the specific suffix 'MF' against the manufacturer's official documentation to confirm the exact tape-and-reel packaging configuration and marking details. Ensure the component grade matches the required initial accuracy specifications for your design. Cross-reference the datasheet revision history to confirm compliance with current environmental standards and lead-free requirements before finalizing procurement.

Voltage Reference Selection Notes

Select this component when a compact surface-mount solution is required for applications demanding high precision and low power consumption. The B-grade designation ensures tighter initial accuracy compared to standard grades. Consider the dropout voltage characteristics relative to the minimum available supply voltage to ensure stable regulation under all expected load conditions.

Voltage Reference Part Context

This part belongs to the LM4132 family of CMOS-based precision voltage references. Unlike traditional laser-trimmed bipolar references, it uses EEPROM correction to overcome assembly-induced drift. The family offers various voltage options and grades, providing flexibility for space-critical designs where low dropout and high drive capability are essential.

Voltage Reference Replacement Considerations

LM4132AMF-3.0/NOPB

Voltage Reference FAQ

Does the LM4132BMF-3.0 require an output capacitor for stability?

No, the device is designed to be stable with low-ESR ceramic capacitors and does not strictly require an output capacitor or buffer amplifier for operation.

What is the function of the EN pin on this device?

The EN (Enable) pin controls the device state; pulling it low activates a shutdown mode that significantly reduces supply current, while pulling it high enables normal operation.