LM4120IM5X-5.0

Voltage Reference Overview

The LM4120IM5X-5.0 is a precision micropower low dropout voltage reference manufactured by Texas Instruments, featuring a fixed 5 V output with ±0.5% initial accuracy and a temperature coefficient of 50 ppm/°C. It operates within an input voltage range of 2 V to 12 V, consuming a typical supply current of 160 µA. The device provides up to 5 mA source and sink current capability and includes an enable pin for power-down mode operation, reducing current consumption below 2 µA. It is housed in a compact SOT-23-5 package and functions reliably across the industrial temperature range of -40°C to 85°C.

Voltage Reference Feature Summary

• Precision bandgap voltage reference with low dropout voltage and high output accuracy
• Capable of sourcing and sinking up to 5 mA output current
• Features an enable pin for remote control and ultra-low power-down mode
• Operates with input voltages as low as 2 V while maintaining stability

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 suffix 'X' indicates tape-and-reel packaging configuration when ordering. Confirm that the standard grade (non-A) matches the required ±0.5% accuracy specification for your design. Ensure the operating environment remains within the specified -40°C to 85°C industrial temperature range to guarantee performance parameters.

Voltage Reference Selection Notes

Select this component when a fixed 5 V reference with moderate precision is required in space-constrained designs. The SOT-23-5 package offers a small footprint suitable for portable applications. Consider the enable pin functionality if system power management requires active shutdown capabilities to minimize standby current consumption.

Voltage Reference Part Context

This device belongs to the LM4120 family of precision micropower voltage references from Texas Instruments. The family includes various voltage options and grades, such as the higher-precision LM4120A series. The IM5X variant specifically denotes the standard accuracy grade packaged in a reel format within the SOT-23-5 outline, designed for surface-mount assembly processes.

Voltage Reference Replacement Considerations

LM4120IM5X-5.0/NOPB