LP2982AIM5-4.7

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

The LP2982AIM5-4.7 is a micropower low-dropout voltage regulator manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed positive output voltage of 4.7 V with a maximum load current capability of 50 mA. The device is housed in a compact SOT-23-5 package, suitable for space-constrained applications. It operates within an input voltage range of 2.1 V to 16 V and maintains performance across an extended temperature range from -40°C to +125°C. Key electrical characteristics include a typical dropout voltage of 120 mV at full load and a quiescent current of approximately 65 µA.

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

• Ultra-low quiescent current consumption for battery-powered efficiency
• Fixed 4.7 V output voltage with high accuracy regulation
• Capable of sourcing up to 50 mA load current
• Operates reliably over an extended industrial temperature range

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

• Portable handheld electronic devices requiring stable power supply
• Battery-operated systems needing extended operational life
• Embedded circuits utilizing low-voltage logic components
• Communication modules with strict power budget constraints

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

Verify the manufacturer origin, as National Semiconductor was acquired by Texas Instruments. Confirm RoHS compliance status, as older batches may differ from current NOPB versions. Ensure the SOT-23-5 package matches your PCB footprint requirements. Check for lead-free specifications if required by your assembly process. Validate that the fixed 4.7 V output aligns with your circuit design needs.

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

Select this component when a fixed 4.7 V rail is required with minimal current draw. Consider it for designs where board space is limited due to the small SOT-23-5 form factor. Evaluate the 50 mA output limit against peak load demands. Compare dropout performance under varying load conditions to ensure stability. Verify thermal dissipation capabilities within the enclosed operating environment.

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

This regulator belongs to the LP298x series of micropower LDOs designed for portable electronics. The series offers various fixed output voltages to accommodate different logic families. The AIM5 suffix indicates the military/industrial temperature grade and SOT-23-5 packaging. These regulators are engineered for high ripple rejection and stability with small ceramic capacitors.

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

Check for LP2982AIM5-4.7/NOPB as a potential lead-free alternative. Verify compatibility with LP2982AIM5X-4.7 if reel packaging is preferred. Ensure substitute parts maintain the same 50 mA current rating and 4.7 V output tolerance.