LP3964 Series

800-mA, low-dropout voltage regulator with enable & sense

Catalog

800-mA, low-dropout voltage regulator with enable & sense

Part	Voltage - Output (Max) [Max]	Current - Supply (Max) [Max]	Current - Quiescent (Iq)	Protection Features	Voltage - Output (Min/Fixed)	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Number of Regulators	Output Configuration	Voltage Dropout (Max) [Max]	Voltage - Input (Max) [Max]	Output Type	Current - Output	Control Features	Supplier Device Package	Mounting Type	Output Type
Texas Instruments LP3964ET-ADJ/NOPB	5.1 V	15 mA	9 mA	Over Current Over Temperature Short Circuit	1.216 V	TO-220-5 Formed Leads	125 °C	-40 °C	1	Positive	0.35 V	7 V	Adjustable	800 mA	Enable	TO-220-5	Through Hole
Texas Instruments LP3964ES-2.5		15 mA	9 mA	Over Current Over Temperature Short Circuit	2.5 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	125 °C	-40 °C	1	Positive	0.35 V	7 V		800 mA	Enable	TO-263 (DDPAK-5)	Surface Mount	1.81 mOhm
Texas Instruments LP3964ESX-ADJ	5.1 V	15 mA	9 mA	Over Current Over Temperature Short Circuit	1.216 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	125 °C	-40 °C	1	Positive	0.35 V	7 V	Adjustable	800 mA	Enable	TO-263 (DDPAK-5)	Surface Mount
Texas Instruments LP3964ES-1.8		15 mA	9 mA	Over Current Over Temperature Short Circuit	1.8 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	125 °C	-40 °C	1	Positive	0.35 V	7 V		800 mA	Enable	TO-263 (DDPAK-5)	Surface Mount	1.81 mOhm
Texas Instruments LP3964ES-2.5/NOPB		15 mA	9 mA	Over Current Over Temperature Short Circuit	2.5 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	125 °C	-40 °C	1	Positive	0.35 V	7 V		800 mA	Enable	TO-263 (DDPAK-5)	Surface Mount	1.81 mOhm
Texas Instruments LP3964ESX-3.3		15 mA	9 mA	Over Current Over Temperature Short Circuit	3.3 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	125 °C	-40 °C	1	Positive	0.35 V	7 V		800 mA	Enable	TO-263 (DDPAK-5)	Surface Mount	1.81 mOhm
Texas Instruments LP3964ET-1.8/NOPB		15 mA	9 mA	Over Current Over Temperature Short Circuit	1.8 V	TO-220-5 Formed Leads	125 °C	-40 °C	1	Positive	0.35 V	7 V		800 mA	Enable	TO-220-5	Through Hole	1.81 mOhm
Texas Instruments LP3964ET-3.3/NOPB		15 mA	9 mA	Over Current Over Temperature Short Circuit	3.3 V	TO-220-5 Formed Leads	125 °C	-40 °C	1	Positive	0.35 V	7 V		800 mA	Enable	TO-220-5	Through Hole	1.81 mOhm
Texas Instruments LP3964ET-ADJ	5.1 V	15 mA	9 mA	Over Current Over Temperature Short Circuit	1.216 V	TO-220-5 Formed Leads	125 °C	-40 °C	1	Positive	0.35 V	7 V	Adjustable	800 mA	Enable	TO-220-5	Through Hole
Texas Instruments LP3964ET-2.5		15 mA	9 mA	Over Current Over Temperature Short Circuit	2.5 V	TO-220-5 Formed Leads	125 °C	-40 °C	1	Positive	0.35 V	7 V		800 mA	Enable	TO-220-5	Through Hole	1.81 mOhm

Catalog

800-mA, low-dropout voltage regulator with enable & sense

Key Features

• Input Supply Voltage: 2.5 V to 7 VUltra-Low Dropout VoltageLow Ground Pin CurrentLoad Regulation of 0.02%15-µA Quiescent Current in Shutdown ModeSpecified Output Current of 0.8-A DCOutput Voltage Accuracy ±1.5%ERRORFlag Indicates Output Status (LP3961)Sense Option Improves Better Load Regulation(LP3964)Extremely Low Output Capacitor RequirementsOvertemperature and Overcurrent Protection−40°C to 125°C Junction Temperature RangeInput Supply Voltage: 2.5 V to 7 VUltra-Low Dropout VoltageLow Ground Pin CurrentLoad Regulation of 0.02%15-µA Quiescent Current in Shutdown ModeSpecified Output Current of 0.8-A DCOutput Voltage Accuracy ±1.5%ERRORFlag Indicates Output Status (LP3961)Sense Option Improves Better Load Regulation(LP3964)Extremely Low Output Capacitor RequirementsOvertemperature and Overcurrent Protection−40°C to 125°C Junction Temperature Range

Description

The LP396x series of fast ultra-low-dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very fast to step changes in load which makes them suitable for low-voltage microprocessor applications. The LP3961 and LP3964 are developed on a CMOS process which allows low quiescent current operation independent of output load current, as well as operation under extremely low dropout conditions. Dropout Voltage:Ultra-low dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 800-mA load current. Ground Pin Current:Typically 4 mA at 800-mA load current. ERRORFlag:ERRORflag goes low when the output voltage drops 10% below nominal value (for LP3961). SENSE:SENSE pin improves regulation at remote loads (for LP3964). Precision Output Voltage:Multiple output voltage options are available ranging from 1.2 V to 5 V and adjustable (LP3964), with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature). The LP396x series of fast ultra-low-dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very fast to step changes in load which makes them suitable for low-voltage microprocessor applications. The LP3961 and LP3964 are developed on a CMOS process which allows low quiescent current operation independent of output load current, as well as operation under extremely low dropout conditions. Dropout Voltage:Ultra-low dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 800-mA load current. Ground Pin Current:Typically 4 mA at 800-mA load current. ERRORFlag:ERRORflag goes low when the output voltage drops 10% below nominal value (for LP3961). SENSE:SENSE pin improves regulation at remote loads (for LP3964). Precision Output Voltage:Multiple output voltage options are available ranging from 1.2 V to 5 V and adjustable (LP3964), with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).