LP3871EMPX-2.5/NOPB

$1.02

Description：IC REG LIN 2.5V 800MA SOT-223-5
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:a2ab07a4d190 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: Texas Instruments

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Product introduction

LP3871EMPX-2.5/NOPB is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG LIN 2.5V 800MA SOT-223-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for LP3871EMPX-2.5/NOPB

Description：IC REG LIN 2.5V 800MA SOT-223-5
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：7V
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.35V @ 800mA
Current - Output：800mA
Current - Quiescent (Iq)：5 mA
Current - Supply (Max)：15 mA
PSRR：73dB ~ 57dB (120Hz)
Control Features：Enable
Protection Features：Over Current, Over Temperature, Short Circuit
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：TO-261-5, TO-261AB
Supplier Device Package：SOT-223-5

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for LP3871EMPX-2.5/NOPB

LP3871EMPX-2.5/NOPB

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

The LP3871EMPX-2.5/NOPB is a fixed-output low-dropout linear regulator manufactured by Texas Instruments, providing a nominal 2.5 V output with a maximum DC load current of 0.8 A. It operates from an input voltage range of 2.5 V to 7 V and features ultra-low dropout voltage characteristics, typically 24 mV at 80 mA and 240 mV at 0.8 A. The device incorporates overcurrent protection, thermal shutdown, and a shutdown mode that reduces quiescent current to approximately 10 nA. It includes an ERROR flag pin for monitoring output status and maintains an output voltage accuracy of ±1.5% at room temperature.

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

Ultra-low dropout voltage performance ensures efficient operation under minimal input-to-output differential conditions.
Integrated short-circuit and thermal protection mechanisms safeguard the device during fault conditions.
Low quiescent current in shutdown mode minimizes power consumption in battery-powered applications.
ERROR flag pin provides active indication when the output voltage drops below regulation thresholds.

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

Microprocessor power supplies
GTL, GTL+, BTL, and SSTL bus terminators
Power supplies for DSPs
SCSI terminators
Post regulators

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

Verify the specific package variant (SOT-223 or TO-263) required for your design, as the LP3871 series utilizes different pinouts for these packages. Confirm that the fixed 2.5 V output aligns with system requirements, as adjustable versions are not available in this specific part number. Ensure proper pull-up resistor configuration on the SD and ERROR pins if those functions are utilized in the final application circuit.

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

Select this component when a stable 2.5 V rail is needed with high transient response capabilities. The CMOS process allows for consistent low quiescent current regardless of load. Consider the thermal resistance values provided in the datasheet to ensure adequate heat dissipation for the chosen package. Verify that the external capacitor ESR falls within the specified stability region to prevent oscillation.

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

This device belongs to the LP387x family of fast ultra-low-dropout linear regulators. The LP3871 variant specifically includes an ERROR flag output but lacks the remote sense capability found in the LP3874 counterpart. Both share identical electrical specifications regarding current handling and dropout characteristics, differing primarily in pin functionality and package availability.