LM4130AIM5X-4.1

Voltage Reference Overview

The LM4130AIM5X-4.1 is a precision micropower low dropout voltage reference manufactured by Texas Instruments, featuring a fixed nominal output voltage of 4.096V. It utilizes CMOS technology with EEPROM registers for curvature correction and package-level programming to achieve high accuracy comparable to laser-trimmed bipolar references. The device operates within an extended temperature range from -40°C to +85°C and supports an output current up to 20mA. Key electrical specifications include an initial accuracy of ±0.05%, a temperature coefficient of 10ppm/°C, and a maximum dropout voltage of 275mV at 10mA load. Supply current is typically 75µA, and the unit is housed in a compact SOT-23-5 surface mount package.

Voltage Reference Feature Summary

• High output voltage accuracy of ±0.05% achieved through CMOS architecture and EEPROM-based package level programming.
• Low dropout voltage capability of ≤275mV at 10mA load, suitable for battery-powered solutions.
• Stable operation with capacitive loads up to 100µF without requiring an output capacitor.
• Micropower supply current consumption of ≤75µA for energy-efficient applications.

Voltage Reference Applications

• Portable and battery powered equipment
• Instrumentation and process control systems
• Automotive and industrial environments
• Test equipment and data acquisition systems
• Precision regulators and battery chargers

Voltage Reference Procurement Notes

Verify component authenticity and datasheet revision status before integration. Confirm that the specific ordering suffix matches the required voltage option and tolerance grade. Check for obsolete status or lifecycle notices as availability may be restricted. Ensure design compliance with absolute maximum ratings regarding input voltage and power dissipation limits during thermal analysis.

Voltage Reference Selection Notes

Select this component when high precision and low quiescent current are critical constraints. The A-grade variant provides the tightest initial accuracy and temperature coefficient specifications. Consider the SOT-23-5 footprint for space-limited designs. Evaluate the need for external bypass capacitors based on input noise conditions and transient load requirements to optimize stability and response time.

Voltage Reference Part Context

This device belongs to the LM4130 family of precision voltage references designed for cost-effective and space-critical applications. Unlike traditional shunt references, it operates as a series regulator, eliminating the need to idle at maximum load current. The family offers multiple grades (A through E) to balance performance and cost, utilizing advanced CMOS bandgap architecture with factory trimming to overcome assembly shifts.

Voltage Reference Replacement Considerations

LM4132EMFX-4.1