LP3856ES-2.5/NOPB

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

The LP3856ES-2.5/NOPB is a fixed-output low-dropout linear voltage regulator manufactured by Texas Instruments. It provides a stable 2.5 V output with a maximum continuous current of 3 A. The device operates within an input voltage range of 2.5 V to 7 V and features a typical dropout voltage of 390 mV at full load. It incorporates internal protection mechanisms including thermal shutdown, overcurrent limiting, and reverse battery protection. The component is housed in a TO-263-5 surface-mount package and supports operation across an extended temperature range from -40°C to +125°C.

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

• Ultra-low dropout performance enables efficient regulation with minimal input-to-output voltage differential.
• Integrated thermal and current limiting protections safeguard the device under fault conditions.
• High power supply rejection ratio maintains output stability against input line noise.

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

• Portable equipment requiring efficient battery-powered voltage regulation
• Cellular phones and personal digital assistants
• Laptop computers and peripheral power supplies

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

Verify the complete part number including the suffix /NOPB to confirm lead-free and RoHS compliance status. Ensure the TO-263-5 package variant matches your PCB footprint requirements. Confirm that the fixed 2.5 V output aligns with your system design needs, as adjustable versions exist within the same family.

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

Select this component when a fixed 2.5 V rail is required with high current capability up to 3 A. The TO-263-5 package offers superior thermal dissipation compared to smaller SOT packages. Consider the 7 V maximum input rating when designing for higher source voltages. Verify that the 390 mV dropout characteristic meets your minimum headroom constraints.

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

This regulator belongs to the LP3856 series of ultra-low dropout linear regulators designed for high-efficiency applications. The series includes various fixed output voltages and adjustable variants. The ES suffix denotes the specific TO-263-5 surface-mount package configuration used for improved thermal performance and board space efficiency.

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

The LP3856ES-ADJ/NOPB serves as an adjustable alternative within the same series. Other fixed voltage options such as LP3856ET-3.3/NOPB provide different output levels. Cross-reference datasheets to ensure pin compatibility and thermal characteristics match before substitution.