LP3881ES-1.5/NOPB

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

The LP3881ES-1.5/NOPB is a low-dropout linear voltage regulator manufactured by Texas Instruments, featuring an adjustable input voltage range from 1.2 V to 9.1 V and a fixed output voltage of 1.5 V. It delivers up to 800 mA of output current with a typical power supply rejection ratio (PSRR) of 80 dB. The device operates within a temperature range of -40°C to +125°C and draws a maximum quiescent current of 7 mA. Packaged in a TO-263-5 surface-mount format, it provides positive polarity regulation for single-output applications.

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

• Ultra-low dropout performance enables efficient operation across a wide input voltage range.
• High power supply rejection ratio ensures stable output against input noise.
• Integrated thermal and current protection safeguards the device under fault conditions.

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

• Portable battery-powered equipment requiring efficient voltage regulation
• Cellular phones and wireless communication devices
• Laptop computers and peripheral power management

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

Verify the complete part number including the suffix /NOPB to confirm lead-free status and RoHS compliance. Ensure the ordering code matches the specific package variant required for your PCB layout. Confirm that the fixed 1.5 V output aligns with your system design needs before procurement.

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

Select this component when a fixed 1.5 V rail is required with high efficiency at moderate currents. The wide input range suits direct battery connection without pre-regulation. Consider the TO-263-5 package for adequate thermal dissipation in space-constrained designs compared to smaller packages.

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

This regulator belongs to the LP3881 series of ultra-low-dropout linear regulators designed for portable electronics. The series offers high PSRR and low quiescent current to extend battery life. The ES package variant provides a robust surface-mount solution suitable for automated assembly processes in consumer electronic manufacturing.

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

Check for LP3881ES-1.5 variants with different suffixes if packaging or environmental compliance differs. Verify pin compatibility with existing designs when substituting similar LDOs from other manufacturers.