LP3871EMP-1.8/NOPB Part Information

Details for LP3871EMP-1.8/NOPB by Texas Instruments

Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators

Part Description

The LP3871 and LP3874 series of fast ultra-lowdropout linear regulators operate from a 2.5-V to 7-V input supply. Wide range of preset output voltage options are available. These ultra-low-dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The devices are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3871 and LP3874 to operate under extremely low dropout conditions. Dropout Voltage: Ultra-low-dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 0.8-A load current. Ground Pin Current: Typically 6 mA at 0.8-A load current. Shutdown Mode: Typically 10-nA quiescent current when the SD pin is pulled low. ERROR Flag: ERROR flag goes low when the output voltage drops 10% below nominal value. SENSE: SENSE pin improves regulation at remote loads. Precision Output Voltage: Multiple output voltage options are available ranging from 1.8 V to 5 V with a ensured accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).

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Part Features

  • 10-nA Quiescent Current in Shutdown Mode
  • ERROR Flag Indicates Output Status
  • Input Voltage: 2.5 V to 7 V
  • Load Regulation of 0.04%
  • Low Ground Pin Current
  • Minimum Output Capacitor Requirements
  • Output Voltage Accuracy u00b11.5%
  • Overtemperature/Overcurrent Protection
  • SENSE Option Improves Load Regulation
  • Specified Output Current of 0.8-A DC
  • Ultra-Low-Dropout Voltage
  • u221240u00b0C to +125u00b0C Junction Temperature Range

Part Specifications

Output Type Fixed
Input Voltage Min 2.5V
Input Voltage Max 7V
Fixed Output Voltage Nom. 1.8V
Adjustable Output Voltage Min -
Adjustable Output Voltage Max -
Output Current 800mA
Dropout Voltage Vdo 240mV
LDO Regulator Case Style SOT-223
No. of Pins 5Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range 1.8V 800mA LDO Voltage Regulators
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Accuracy % 1.5%
Base Number 3871
No. of Outputs 1Outputs
Operating Temperature Range -40°C to +125°C
Output Voltage Nom. 1.8V
Primary Input Voltage 7V
Supply Voltage Min 2.5V
Termination Type Surface Mount Device
Voltage Regulator Type Ultra LDO Fixed Positive
RoHS Compliant

Alternative Part Descriptions

  • 800-mA, 7-V, low-dropout voltage regulator with power good & enable | Texas Instruments

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