LP3874-ADJ Series

800-mA, 7-V, adjustable low-dropout voltage regulator with enable

Catalog

800-mA, 7-V, adjustable low-dropout voltage regulator with enable

Part	Current - Quiescent (Iq)	Number of Regulators	Package / Case	Voltage Dropout (Max) [Max]	Voltage - Input (Max) [Max]	Control Features	Output Type	Current - Supply (Max) [Max]	Protection Features	Voltage - Output (Min/Fixed)	Output Configuration	Current - Output	Mounting Type	Supplier Device Package	PSRR [Max]	PSRR [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Voltage - Output (Max) [Max]
Texas Instruments LP3874EMP-3.3/NOPB	9 mA	1	TO-261-5 TO-261AB	0.35 V	7 V	Enable	1.81 mOhm	15 mA	Over Current Over Temperature Short Circuit	3.3 V	Positive	800 mA	Surface Mount	SOT-223-5	73 dB	57 dB	125 °C	-40 °C
Texas Instruments LP3874EMPX-2.5/NOPB	9 mA	1	TO-261-5 TO-261AB	0.35 V	7 V	Enable	1.81 mOhm	15 mA	Over Current Over Temperature Short Circuit	2.5 V	Positive	800 mA	Surface Mount	SOT-223-5	73 dB	57 dB	125 °C	-40 °C
Texas Instruments LP3874EMPX-ADJ	9 mA	1	TO-261-5 TO-261AB	0.35 V	7 V	Enable		15 mA	Over Current Over Temperature Short Circuit	1.2 V	Positive	800 mA	Surface Mount	SOT-223-5	73 dB	57 dB	125 °C	-40 °C	Adjustable	6.6 V
Texas Instruments LP3874EMPX-1.8/NOPB	9 mA	1	TO-261-5 TO-261AB	0.35 V	7 V	Enable	1.81 mOhm	15 mA	Over Current Over Temperature Short Circuit	1.8 V	Positive	800 mA	Surface Mount	SOT-223-5	73 dB	57 dB	125 °C	-40 °C
Texas Instruments LP3874ET-5.0/NOPB	9 mA	1	TO-220-5 Formed Leads	0.35 V	7 V	Enable	1.81 mOhm	15 mA	Over Current Over Temperature Short Circuit	5 V	Positive	800 mA	Through Hole	TO-220-5	73 dB	57 dB	125 °C	-40 °C
Texas Instruments LP3874ET-1.8/NOPB	9 mA	1	TO-220-5 Formed Leads	0.35 V	7 V	Enable	1.81 mOhm	15 mA	Over Current Over Temperature Short Circuit	1.8 V	Positive	800 mA	Through Hole	TO-220-5	73 dB	57 dB	125 °C	-40 °C
Texas Instruments LP3874EMPX-1.8	9 mA	1	TO-261-5 TO-261AB	0.35 V	7 V	Enable	1.81 mOhm	15 mA	Over Current Over Temperature Short Circuit	1.8 V	Positive	800 mA	Surface Mount	SOT-223-5	73 dB	57 dB	125 °C	-40 °C
Texas Instruments LP3874EMP-2.5	9 mA	1	TO-261-5 TO-261AB	0.35 V	7 V	Enable	1.81 mOhm	15 mA	Over Current Over Temperature Short Circuit	2.5 V	Positive	800 mA	Surface Mount	SOT-223-5	73 dB	57 dB	125 °C	-40 °C
Texas Instruments LP3874ESX-5.0	9 mA	1	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	0.35 V	7 V	Enable	1.81 mOhm	15 mA	Over Current Over Temperature Short Circuit	5 V	Positive	800 mA	Surface Mount	TO-263 (DDPAK-5)	73 dB	57 dB	125 °C	-40 °C
Texas Instruments LP3874EMP-5.0/NOPB	9 mA	1	TO-261-5 TO-261AB	0.35 V	7 V	Enable	1.81 mOhm	15 mA	Over Current Over Temperature Short Circuit	5 V	Positive	800 mA	Surface Mount	SOT-223-5	73 dB	57 dB	125 °C	-40 °C

Catalog

800-mA, 7-V, adjustable low-dropout voltage regulator with enable

Key Features

• Input Voltage: 2.5 V to 7 VUltra-Low-Dropout VoltageLow Ground Pin CurrentLoad Regulation of 0.04%10-nA Quiescent Current in Shutdown ModeSpecified Output Current of 0.8-A DCOutput Voltage Accuracy ±1.5%ERRORFlag Indicates Output StatusSENSE Option Improves Load RegulationMinimum Output Capacitor RequirementsOvertemperature/Overcurrent Protection−40°C to +125°C Junction Temperature RangeInput Voltage: 2.5 V to 7 VUltra-Low-Dropout VoltageLow Ground Pin CurrentLoad Regulation of 0.04%10-nA Quiescent Current in Shutdown ModeSpecified Output Current of 0.8-A DCOutput Voltage Accuracy ±1.5%ERRORFlag Indicates Output StatusSENSE Option Improves Load RegulationMinimum Output Capacitor RequirementsOvertemperature/Overcurrent Protection−40°C to +125°C Junction Temperature Range

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).