LP3871 Series

800-mA, 7-V, low-dropout voltage regulator with power good & enable

Catalog

800-mA, 7-V, low-dropout voltage regulator with power good & enable

Part	Mounting Type	Voltage - Output (Min/Fixed)	Voltage - Input (Max)	Current - Output	Voltage Dropout (Max)	PSRR (Maximum)	PSRR (Minimum)	Output Type	Package Leads	Package Name	Current - Quiescent (Iq)	Current - Supply (Max)	Output Configuration	Protection Features	Control Features	Number of Regulators	Operating Temperature (Max)	Operating Temperature (Min)	Package / Case
Texas Instruments LP3871ESX-3.3/NOPB	Surface Mount	3.3 V	7 V	800 mA	0.35 V	73 dB	57 dB	Fixed	5 Leads	D2PAK TO-263 (DDPAK-5)	5 mA	15 mA	Positive	Over Current Over Temperature Short Circuit	Enable	1	125 °C	-40 °C
Texas Instruments LP3871ES-5.0/NOPB	Surface Mount	5 V	7 V	800 mA	0.35 V	73 dB	57 dB	Fixed	5 Leads	D2PAK TO-263 (DDPAK-5)	5 mA	15 mA	Positive	Over Current Over Temperature Short Circuit	Enable	1	125 °C	-40 °C
Texas Instruments LP3871EMPX-3.3/NOPB	Surface Mount	3.3 V	7 V	800 mA	0.35 V	73 dB	57 dB	Fixed		SOT-223-5	5 mA	15 mA	Positive	Over Current Over Temperature Short Circuit	Enable	1	125 °C	-40 °C	TO-261-5 TO-261AB
Texas Instruments LP3871ET-1.8/NOPB	Through Hole	1.8 V	7 V	800 mA	0.35 V	73 dB	57 dB	Fixed		TO-220-5	5 mA	15 mA	Positive	Over Current Over Temperature Short Circuit	Enable	1	125 °C	-40 °C	TO-220-5 Formed Leads
Texas Instruments LP3871EMP-1.8/NOPB	Surface Mount	1.8 V	7 V	800 mA	0.35 V	73 dB	57 dB	Fixed		SOT-223-5	5 mA	15 mA	Positive	Over Current Over Temperature Short Circuit	Enable	1	125 °C	-40 °C	TO-261-5 TO-261AB
Texas Instruments LP3871EMPX-2.5/NOPB	Surface Mount	2.5 V	7 V	800 mA	0.35 V	73 dB	57 dB	Fixed		SOT-223-5	5 mA	15 mA	Positive	Over Current Over Temperature Short Circuit	Enable	1	125 °C	-40 °C	TO-261-5 TO-261AB
Texas Instruments LP3871EMP-1.8	Surface Mount	1.8 V	7 V	800 mA	0.35 V	73 dB	57 dB	Fixed		SOT-223-5	5 mA	15 mA	Positive	Over Current Over Temperature Short Circuit	Enable	1	125 °C	-40 °C	TO-261-5 TO-261AB
Texas Instruments LP3871ESX-2.5/NOPB	Surface Mount	2.5 V	7 V	800 mA	0.35 V	73 dB	57 dB	Fixed	5 Leads	D2PAK TO-263 (DDPAK-5)	5 mA	15 mA	Positive	Over Current Over Temperature Short Circuit	Enable	1	125 °C	-40 °C
Texas Instruments LP3871EMP-2.5/NOPB	Surface Mount	2.5 V	7 V	800 mA	0.35 V	73 dB	57 dB	Fixed		SOT-223-5	5 mA	15 mA	Positive	Over Current Over Temperature Short Circuit	Enable	1	125 °C	-40 °C	TO-261-5 TO-261AB
Texas Instruments LP3871EMP-2.5/NOPB	Surface Mount	2.5 V	7 V	800 mA	0.35 V	73 dB	57 dB	Fixed		SOT-223	5 mA	15 mA	Positive	Over Current Over Temperature Short Circuit	Enable	1	125 °C	-40 °C	TO-261-5 TO-261AB

Catalog

800-mA, 7-V, low-dropout voltage regulator with power good & enable

Description

The LP3871 and LP3874 series of fast ultra-low-dropout 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 theSDpin is pulled low. ERRORFlag:ERRORflag 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). The LP3871 and LP3874 series of fast ultra-low-dropout 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 theSDpin is pulled low. ERRORFlag:ERRORflag 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).