LP3875-ADJ Series

1.5-A, adjustable low-dropout voltage regulator with enable

Catalog

1.5-A, adjustable low-dropout voltage regulator with enable

Part	Current - Quiescent (Iq)	Voltage Dropout (Max) [Max]	Output Type	Package / Case	Control Features	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Supplier Device Package	Mounting Type	Protection Features	Current - Supply (Max) [Max]	Number of Regulators	PSRR [Max]	PSRR [Min]	Output Configuration	Output Type	Voltage - Output (Max) [Max]
Texas Instruments LP3875ESX-3.3/NOPB	5 mA	0.55 V	1.81 mOhm	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Enable	125 °C	-40 °C	1.5 A	7 V	3.3 V	TO-263 (DDPAK-5)	Surface Mount	Over Current Over Temperature Short Circuit	15 mA	1	73 dB	57 dB	Positive
Texas Instruments LP3875ES-2.5	5 mA	0.55 V	1.81 mOhm	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Enable	125 °C	-40 °C	1.5 A	7 V	2.5 V	TO-263 (DDPAK-5)	Surface Mount	Over Current Over Temperature Short Circuit	15 mA	1	73 dB	57 dB	Positive
Texas Instruments LP3875ET-3.3	5 mA	0.55 V	1.81 mOhm	TO-220-5 Formed Leads	Enable	125 °C	-40 °C	1.5 A	7 V	3.3 V	TO-220-5	Through Hole	Over Current Over Temperature Short Circuit	15 mA	1	73 dB	57 dB	Positive
Texas Instruments LP3875EMPX-2.5/NOPB	5 mA	0.55 V	1.81 mOhm	TO-261-5 TO-261AB	Enable	125 °C	-40 °C	1.5 A	7 V	2.5 V	SOT-223-5	Surface Mount	Over Current Over Temperature Short Circuit	15 mA	1	73 dB	57 dB	Positive
Texas Instruments LP3875ES-ADJ	5 mA	0.55 V		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Enable	125 °C	-40 °C	1.5 A	7 V		TO-263 (DDPAK-5)	Surface Mount	Over Current Over Temperature Short Circuit	15 mA	1	73 dB	57 dB	Positive	Adjustable	6.4 V
Texas Instruments LP3875ES-3.3/NOPB	5 mA	0.55 V	1.81 mOhm	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Enable	125 °C	-40 °C	1.5 A	7 V	3.3 V	TO-263 (DDPAK-5)	Surface Mount	Over Current Over Temperature Short Circuit	15 mA	1	73 dB	57 dB	Positive
Texas Instruments LP3875ES-5.0/NOPB	5 mA	0.55 V	1.81 mOhm	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Enable	125 °C	-40 °C	1.5 A	7 V	5 V	TO-263 (DDPAK-5)	Surface Mount	Over Current Over Temperature Short Circuit	15 mA	1	73 dB	57 dB	Positive
Texas Instruments LP3875EMP-ADJ/NOPB	5 mA	0.55 V		TO-261-5 TO-261AB	Enable	125 °C	-40 °C	1.5 A	7 V		SOT-223-5	Surface Mount	Over Current Over Temperature Short Circuit	15 mA	1	73 dB	57 dB	Positive	Adjustable	6.4 V
Texas Instruments LP3875ES-1.8/NOPB	5 mA	0.55 V	1.81 mOhm	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Enable	125 °C	-40 °C	1.5 A	7 V	1.8 V	TO-263 (DDPAK-5)	Surface Mount	Over Current Over Temperature Short Circuit	15 mA	1	73 dB	57 dB	Positive
Texas Instruments LP3875ESX-ADJ	5 mA	0.55 V		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Enable	125 °C	-40 °C	1.5 A	7 V		TO-263 (DDPAK-5)	Surface Mount	Over Current Over Temperature Short Circuit	15 mA	1	73 dB	57 dB	Positive	Adjustable	6.4 V

Catalog

1.5-A, adjustable low-dropout voltage regulator with enable

Key Features

• Input Voltage Range: 2.5 V to 7 VUltra Low-Dropout VoltageLow Ground Pin CurrentLoad Regulation of 0.06%10-nA Quiescent Current in Shutdown ModeEnsured Output Current of 1.5-A DCAvailable in DDPAK/TO-263, TO-220, andSOT-223 PackagesOutput Voltage Accuracy ±1.5%ERRORFlag for Output StatusSense Option Improves Load RegulationMinimum Output Capacitor RequirementsOvertemperature/Overcurrent Protection−40°C to 125°C Junction Temperature RangeInput Voltage Range: 2.5 V to 7 VUltra Low-Dropout VoltageLow Ground Pin CurrentLoad Regulation of 0.06%10-nA Quiescent Current in Shutdown ModeEnsured Output Current of 1.5-A DCAvailable in DDPAK/TO-263, TO-220, andSOT-223 PackagesOutput Voltage Accuracy ±1.5%ERRORFlag for Output StatusSense Option Improves Load RegulationMinimum Output Capacitor RequirementsOvertemperature/Overcurrent Protection−40°C to 125°C Junction Temperature Range

Description

The LP387x 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 LP3872 and LP3875 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3872 and LP3875 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low-dropout voltage; typically 38 mV at 150-mA load current and 380 mV at 1.5-A load current. Ground Pin Current:Typically 6 mA at 1.5-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 (LP3872 only). SENSE:Sense pin improves regulation at remote loads (LP3875 only). Precision Output Voltage:Multiple output voltage options are available ranging from 1.8 V to 5 V with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature). The LP387x 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 LP3872 and LP3875 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3872 and LP3875 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low-dropout voltage; typically 38 mV at 150-mA load current and 380 mV at 1.5-A load current. Ground Pin Current:Typically 6 mA at 1.5-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 (LP3872 only). SENSE:Sense pin improves regulation at remote loads (LP3875 only). Precision Output Voltage:Multiple output voltage options are available ranging from 1.8 V to 5 V with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).