LP3874 Series

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

Catalog(22 parts)

Part	Voltage - Output (Min/Fixed)▲▼	Voltage Dropout (Max)▲▼	Protection Features	Output Configuration	Output Type▲▼	Current - Quiescent (Iq)▲▼	Current - Output▲▼	Voltage - Input (Max)▲▼	Mounting Type	Control Features	Number of Regulators▲▼	Package / Case	Supplier Device Package	Current - Supply (Max)▲▼	Operating Temperature▲▼	Operating Temperature▲▼	PSRR▲▼	PSRR▲▼	Voltage - Output (Max)▲▼	Output Type
Texas Instruments LP3874ES-3.3/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-263 (DDPAK-5)	3.299999952316284 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	TO-263 (DDPAK-5)	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMP-3.3/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	3.299999952316284 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMPX-2.5/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	2.5 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMPX-ADJ Linear Voltage Regulator IC Positive Adjustable 1 Output 800mA SOT-223-5	1.2000000476837158 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive		0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul	6.599999904632568 V	Adjustable
Texas Instruments LP3874EMPX-1.8/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	1.7999999523162842 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMP-1.8 Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	1.7999999523162842 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874ET-5.0/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-220-5	5 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Through Hole	Enable	1 ul	TO-220-5 Formed Leads	TO-220-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874ET-1.8/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-220-5	1.7999999523162842 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Through Hole	Enable	1 ul	TO-220-5 Formed Leads	TO-220-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMPX-1.8 Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	1.7999999523162842 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMP-2.5 Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	2.5 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874ESX-5.0 Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-263 (DDPAK-5)	5 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	TO-263 (DDPAK-5)	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMPX-ADJ/NOPB Linear Voltage Regulator IC Positive Adjustable 1 Output 800mA SOT-223-5	1.2000000476837158 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive		0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul	6.599999904632568 V	Adjustable
Texas Instruments LP3874EMP-5.0/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	5 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMP-3.3 Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	3.299999952316284 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874ES-2.5/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-263 (DDPAK-5)	2.5 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	TO-263 (DDPAK-5)	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMP-2.5/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	2.5 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874ESX-ADJ Linear Voltage Regulator IC Positive Adjustable 1 Output 800mA TO-263 (DDPAK-5)	1.2000000476837158 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive		0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	TO-263 (DDPAK-5)	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul	6.599999904632568 V	Adjustable
Texas Instruments LP3874EMPX-3.3 Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	3.299999952316284 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMP-1.8/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 800mA SOT-223-5	1.7999999523162842 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive	27.030000686645508 °C/W	0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul
Texas Instruments LP3874EMP-ADJ Linear Voltage Regulator IC Positive Adjustable 1 Output 800mA SOT-223-5	1.2000000476837158 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive		0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	TO-261-5, TO-261AB	SOT-223-5	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul	6.599999904632568 V	Adjustable
Texas Instruments LP3874ESX-ADJ/NOPB Linear Voltage Regulator IC Positive Adjustable 1 Output 800mA TO-263 (DDPAK-5)	1.2000000476837158 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive		0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	TO-263 (DDPAK-5)	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul	6.599999904632568 V	Adjustable
Texas Instruments LP3874ES-ADJ/NOPB Linear Voltage Regulator IC Positive Adjustable 1 Output 800mA TO-263 (DDPAK-5)	1.2000000476837158 V	0.3499999940395355 V	Over Current, Over Temperature, Short Circuit	Positive		0.008999999612569809 A	0.800000011920929 A	7 V	Surface Mount	Enable	1 ul	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	TO-263 (DDPAK-5)	0.014999999664723871 A	125 °C	-40 °C	57 ul	73 ul	6.599999904632568 V	Adjustable

Key Features

• Ultra Low Dropout VoltageLow Ground Pin CurrentLoad Regulation of 0.04%10nA Quiescent Current in Shutdown ModeSpecified Output Current of 0.8A DCAvailable in DDPAK/TO-263, TO-220 and SOT-223 PackagesMinimum Output Capacitor RequirementsOvertemperature/Overcurrent Protection−40°C to +125°C Junction Temperature RangeAll trademarks are the property of their respective owners.Ultra Low Dropout VoltageLow Ground Pin CurrentLoad Regulation of 0.04%10nA Quiescent Current in Shutdown ModeSpecified Output Current of 0.8A DCAvailable in DDPAK/TO-263, TO-220 and SOT-223 PackagesMinimum Output Capacitor RequirementsOvertemperature/Overcurrent Protection−40°C to +125°C Junction Temperature RangeAll trademarks are the property of their respective owners.

Description

The LP3874-ADJ fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. These ultra low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3874-ADJ is developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3874-ADJ to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 24mV at 80mA load current and 240mV at 0.8A load current. Ground Pin Current:Typically 6mA at 0.8A load current. Shutdown Mode:Typically 10nA quiescent current when the shutdown pin is pulled low. Adjustable Output Voltage:The output voltage may be programmed via two external resistors. The LP3874-ADJ fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. These ultra low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3874-ADJ is developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3874-ADJ to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 24mV at 80mA load current and 240mV at 0.8A load current. Ground Pin Current:Typically 6mA at 0.8A load current. Shutdown Mode:Typically 10nA quiescent current when the shutdown pin is pulled low. Adjustable Output Voltage:The output voltage may be programmed via two external resistors.