LP3961ET-3.3/NOPB

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

The LP3961ET-3.3/NOPB is a fixed-output low-dropout linear regulator manufactured by Texas Instruments, delivering a stable 3.3 V output with a maximum load current of 1.5 A. Housed in a five-pin TO-220 package for through-hole mounting, it operates within an input voltage range of 2.5 V to 7 V. The device maintains high accuracy with line and load regulation at 0.02% and 0.04%, respectively, and features a typical power supply rejection ratio of 60 dB. It functions reliably across an extended temperature range from -40 °C to +125 °C.

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

• Provides high-accuracy regulated output with minimal deviation under varying load conditions
• Supports substantial continuous current delivery suitable for demanding power applications
• Utilizes a robust through-hole package designed for efficient thermal dissipation

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

• Powering embedded processor systems requiring stable voltage rails
• Supplying logic circuits in industrial control environments
• Providing regulated voltage for sensor interfaces in automotive contexts

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

Verify the specific suffix configuration against official datasheets to ensure compatibility with required thermal and electrical specifications. Confirm that the TO-220 package variant aligns with your board layout constraints. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before finalizing procurement decisions.

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

Select this component when a higher current capacity than standard SMD LDOs is necessary without resorting to switching regulators. The TO-220 package facilitates direct heatsinking if thermal management requirements exceed standard surface-mount capabilities. Ensure the input voltage remains within the specified operational limits to maintain optimal dropout performance and stability.

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

This device belongs to the LP3961 series of fast transient response low-dropout regulators. While other variants in the family utilize surface-mount packages like SOT-223 or D2PAK, this specific model employs a through-hole TO-220 form factor. This variation targets applications where manual assembly or enhanced thermal conductivity via chassis mounting is preferred over automated PCB placement.

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

Consult official substitution guides for equivalent Texas Instruments LDOs with matching current ratings and package types. Verify pinout compatibility and thermal resistance characteristics when considering alternative manufacturers' components to ensure seamless integration.