LP2989AILD-3.3/NOPB

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

The LP2989AILD-3.3/NOPB is a micropower, low-noise, ultra-low-dropout linear voltage regulator manufactured by Texas Instruments. It provides a fixed positive output of 3.3 V with a maximum load current capability of 500 mA. The device operates within an input voltage range of 2.1 V to 16 V and features a typical power supply rejection ratio (PSRR) of 60 dB. Quiescent current is specified at 800 nA. The unit is housed in an 8-pin WSON package with an exposed pad and supports operation across a temperature range of -40°C to +125°C.

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

• Ultra-low quiescent current consumption for battery-powered applications
• Low noise performance suitable for sensitive analog circuits
• Integrated enable control pin for power management
• Built-in thermal overload and current limit protection

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

• Portable consumer electronics requiring efficient power regulation
• Wireless communication modules needing low-noise power supplies
• Battery-operated devices extending operational life
• Embedded systems utilizing microcontroller power rails

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

Verify the specific suffix 'NOPB' indicates lead-free composition and compliance with RoHS directives. Confirm the 'ILD' designation corresponds to the WSON-8 package variant. Ensure the design accounts for the exposed thermal pad requirements for proper heat dissipation and electrical grounding as specified in the manufacturer's datasheet.

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

Select this component when a fixed 3.3 V output is required with high efficiency under light load conditions due to its nanometer-scale quiescent current. Consider the WSON-8 footprint constraints and thermal management needs. Compare against other LP2989 variants if different output voltages or package types like SOIC are preferred for the specific PCB layout.

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

This part belongs to the LP2989 family of micropower LDO regulators from Texas Instruments. It shares core architectural features with siblings such as the LP2989AIMX series but differs in package type and output voltage configuration. The family is designed for applications demanding low noise and high PSRR in compact form factors.

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

LP2989AILD-33-NOPB serves as a direct equivalent identifier for this component.