LP2985IBPX-1.5

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

The LP2985IBPX-1.5 is a fixed positive low-dropout (LDO) linear voltage regulator manufactured by National Semiconductor, now Texas Instruments. It provides a fixed output voltage of 1.5V with a maximum dropout voltage of 0.575V at full load. The device supports an input voltage range from 2.5V to 16V and delivers up to 150mA of continuous output current. It utilizes a 5-pin PBGA package for surface-mount applications.

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

• Provides stable regulated power for sensitive microcontroller and processor circuits
• Features internal protection mechanisms against overcurrent and thermal overload conditions
• Designed for efficient operation in battery-powered systems requiring minimal quiescent current

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

• Portable electronic devices requiring low noise power supplies
• Battery-operated equipment needing extended runtime through low quiescent current
• Embedded systems utilizing microcontrollers or digital signal processors

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

Verify the manufacturer designation carefully, as National Semiconductor was acquired by Texas Instruments. Confirm the specific suffix 'IBPX' matches the required package type and temperature grade. Ensure the output voltage code corresponds to the 1.5V specification. Check for lead-free compliance markings if RoHS standards are mandatory for your assembly process.

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

Select this component when a precise 1.5V rail is needed with high line and load regulation. Consider the 0.575V dropout characteristic to ensure sufficient headroom between input and output voltages under all operating conditions. Evaluate the thermal performance based on the expected load current and ambient temperature to determine if additional heat sinking is necessary.

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

This part belongs to the LP2985 series of micropower LDO regulators known for their low noise and high power supply rejection ratio. The series offers various fixed output voltages to accommodate different logic families. The IBPX variant specifically denotes the plastic ball grid array packaging suitable for compact board designs.

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

LP2985IBPX-1.5/NOPB