LM4120AIM5X-5.0

Voltage Reference Overview

The LM4120AIM5X-5.0 is a precision micropower low dropout voltage reference manufactured by Texas Instruments, featuring a fixed output of 5 V with an initial accuracy of ±0.2%. It operates within an input voltage range of 2 V to 12 V and consumes a typical supply current of 160 µA. The device provides bidirectional source and sink current capability up to 5 mA and includes an enable pin for power-down functionality, reducing current consumption below 2 µA. It utilizes a 5-pin SOT-23 package and ensures performance over the industrial temperature range of −40°C to 85°C.

Voltage Reference Feature Summary

• Precision bandgap voltage reference with high initial accuracy
• Bidirectional current source and sink capability
• Low dropout voltage operation
• Dedicated enable pin for remote shutdown control

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm availability status and packaging options. Confirm that the component meets all required environmental and safety standards for the intended application before finalizing procurement decisions.

Voltage Reference Selection Notes

Select this component when a stable 5 V reference with high accuracy is required in space-constrained designs. The low supply current and enable feature make it suitable for battery-operated devices where power conservation is critical. Ensure the input voltage remains within the specified operating range to maintain regulation.

Voltage Reference Part Context

This part belongs to the LM4120 series of precision micropower voltage references from Texas Instruments. The series offers multiple fixed voltage options and grades, including standard and A-grade variants. The 'A' designation indicates tighter initial accuracy specifications compared to the standard grade.

Voltage Reference Replacement Considerations

LM4120AIM5-5.0/NOPB