LM2937IMPX-2.5/NOPB

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LM2937IMPX-2.5/NOPB is a fixed-output low-dropout linear voltage regulator manufactured by Texas Instruments. It provides a stable 2.5 V output with a maximum load current of 500 mA. The device operates from an input voltage up to 26 V and features a typical dropout voltage of 500 mV at full load. It maintains a quiescent current of approximately 10 mA. The component is housed in a surface-mount SOT-223-4 package and is rated for operation within a junction temperature range of -40°C to +125°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Provides a fixed 2.5 V regulated output suitable for digital logic and reference applications
• Supports continuous load currents up to 500 mA with high power supply rejection ratio
• Operates reliably across an extended industrial temperature range without external compensation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered systems requiring efficient step-down regulation
• Post-regulation for switching power supplies
• Embedded controller and microprocessor core voltage supply

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status as per the manufacturer's latest documentation. Confirm the SOT-223-4 package dimensions match your PCB footprint requirements. Ensure input voltage does not exceed the 26 V absolute maximum rating under all operating conditions. Check thermal dissipation capabilities based on expected load current and ambient temperature.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 2.5 V rail is required with moderate current demands. It is appropriate for designs prioritizing simplicity over adjustable output flexibility. Consider thermal management strategies if operating near the 500 mA limit due to power dissipation constraints inherent in linear regulation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the LM2937 family of low-dropout regulators, which are designed for applications requiring high power supply rejection and stability with minimal external components. The series offers various fixed output voltages and packages to accommodate different board space and current requirements within portable and industrial electronics.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct pin-compatible substitutes within the same family include LM2937IMPX-3.3/NOPB or LM2937IMPX-5.0/NOPB if the output voltage requirement differs. Verify that any alternative maintains the 500 mA current capability and SOT-223-4 package form factor.