LP3966ESX-2.5/NOPB

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Texas Instruments

3-A, HIGH-ACCURACY, LOW-DROPOUT VOLTAGE REGULATOR WITH POWER GOOD & ENABLE

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DocumentsLP3963/LP3966 3A Fast Ultra Low Dropout Linear Regulators datasheet (Rev. H)

LP3966ESX-2.5/NOPB

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Texas Instruments

3-A, HIGH-ACCURACY, LOW-DROPOUT VOLTAGE REGULATOR WITH POWER GOOD & ENABLE

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DocumentsLP3963/LP3966 3A Fast Ultra Low Dropout Linear Regulators datasheet (Rev. H)

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	LP3966ESX-2.5/NOPB	LP3966 Series

Control Features	Enable	Enable
Current - Output	3 A	3 A
Current - Quiescent (Iq)	9 mA	9 mA
Current - Supply (Max) [Max]	15 mA	15 mA
Mounting Type	Surface Mount	Surface Mount, Through Hole
Number of Regulators	1	1
Operating Temperature [Max]	125 °C	125 °C
Operating Temperature [Min]	-40 °C	-40 °C
Output Configuration	Positive	Positive
Output Type	27.03 °C/W	27.03 °C/W
Output Type	-	Adjustable
Package / Case	TO-263BA, D2PAK (5 Leads + Tab), TO-263-6	TO-263BA, D2PAK (5 Leads + Tab), TO-263-6, TO-220-5 Formed Leads
Protection Features	Over Current, Short Circuit, Over Temperature	Over Current, Short Circuit, Over Temperature
Supplier Device Package	TO-263 (DDPAK-5)	TO-263 (DDPAK-5), TO-220-5
Voltage - Input (Max) [Max]	7 V	7 V
Voltage - Output (Max)	-	5.1 V
Voltage - Output (Min/Fixed)	2.5 V	1.216 - 5 V
Voltage Dropout (Max) [Max]	1.2 V	1.2 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 5.62
		10	$ 5.05
		25	$ 4.77
		100	$ 4.14
		250	$ 3.92
	Digi-Reel®	1	$ 5.62
		10	$ 5.05
		25	$ 4.77
		100	$ 4.14
		250	$ 3.92
	Tape & Reel (TR)	500	$ 2.63
Texas Instruments	LARGE T&R	1	$ 3.86
		100	$ 3.15
		250	$ 2.48
		1000	$ 2.10

LP3966 Series

3-A, HIGH-ACCURACY, LOW-DROPOUT VOLTAGE REGULATOR WITH POWER GOOD & ENABLE

Part	Voltage - Output (Max) [Max]	Number of Regulators	Current - Output	Mounting Type	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Control Features	Current - Supply (Max) [Max]	Voltage Dropout (Max) [Max]	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Protection Features	Current - Quiescent (Iq)	Output Type	Output Configuration	Output Type
Texas Instruments LP3966ES-ADJ/NOPB The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature). The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).	5.1 V	1	3 A	Surface Mount	7 V	1.216 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA	Adjustable	Positive
Texas Instruments LP3966ES-ADJ Linear Voltage Regulator IC Positive Adjustable 1 Output 3A TO-263 (DDPAK-5)	5.1 V	1	3 A	Surface Mount	7 V	1.216 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA	Adjustable	Positive
Texas Instruments LP3966ESX-1.8/NOPB The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature). The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).		1	3 A	Surface Mount	7 V	1.8 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ES-2.5/NOPB The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature). The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).		1	3 A	Surface Mount	7 V	2.5 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ET-5.0/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-220-5		1	3 A	Through Hole	7 V	5 V	Enable	15 mA	1.2 V	TO-220-5	125 °C	-40 °C	TO-220-5 Formed Leads	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ESX-2.5/NOPB The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature). The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).		1	3 A	Surface Mount	7 V	2.5 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ESX-3.3/NOPB The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature). The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).		1	3 A	Surface Mount	7 V	3.3 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ET-ADJ Linear Voltage Regulator IC Positive Adjustable 1 Output 3A TO-220-5	5.1 V	1	3 A	Through Hole	7 V	1.216 V	Enable	15 mA	1.2 V	TO-220-5	125 °C	-40 °C	TO-220-5 Formed Leads	Over Current, Over Temperature, Short Circuit	9 mA	Adjustable	Positive
Texas Instruments LP3966ESX-ADJ/NOPB The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature). The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).	5.1 V	1	3 A	Surface Mount	7 V	1.216 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA	Adjustable	Positive
Texas Instruments LP3966ESX-3.3 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-263 (DDPAK-5)		1	3 A	Surface Mount	7 V	3.3 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ES-2.5 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-263 (DDPAK-5)		1	3 A	Surface Mount	7 V	2.5 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ET-1.8/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-220-5		1	3 A	Through Hole	7 V	1.8 V	Enable	15 mA	1.2 V	TO-220-5	125 °C	-40 °C	TO-220-5 Formed Leads	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ES-1.8 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-263 (DDPAK-5)		1	3 A	Surface Mount	7 V	1.8 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ES-1.8/NOPB The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature). The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).		1	3 A	Surface Mount	7 V	1.8 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ET-ADJ/NOPB The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature). The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).	5.1 V	1	3 A	Through Hole	7 V	1.216 V	Enable	15 mA	1.2 V	TO-220-5	125 °C	-40 °C	TO-220-5 Formed Leads	Over Current, Over Temperature, Short Circuit	9 mA	Adjustable	Positive
Texas Instruments LP3966ES-3.3/NOPB The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature). The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current:Typically 6mA at 3A load current. Shutdown Mode:Typically 15µA quiescent current when the shutdown pin is pulled low. ErrorFlag:Errorflag goes low when the output voltage drops 10% below nominal value (for LP3963). SENSE:Sense pin improves regulation at remote loads. (For LP3966) Precision Output Voltage:Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).		1	3 A	Surface Mount	7 V	3.3 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ET-2.5/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-220-5		1	3 A	Through Hole	7 V	2.5 V	Enable	15 mA	1.2 V	TO-220-5	125 °C	-40 °C	TO-220-5 Formed Leads	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ESX-1.8 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-263 (DDPAK-5)		1	3 A	Surface Mount	7 V	1.8 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ET-3.3/NOPB Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-220-5		1	3 A	Through Hole	7 V	3.3 V	Enable	15 mA	1.2 V	TO-220-5	125 °C	-40 °C	TO-220-5 Formed Leads	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ES-3.3 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-263 (DDPAK-5)		1	3 A	Surface Mount	7 V	3.3 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W
Texas Instruments LP3966ESX-2.5 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-263 (DDPAK-5)		1	3 A	Surface Mount	7 V	2.5 V	Enable	15 mA	1.2 V	TO-263 (DDPAK-5)	125 °C	-40 °C	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Over Current, Over Temperature, Short Circuit	9 mA		Positive	27.03 °C/W

Description

General part information

LP3966 Series

The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions.

Dropout Voltage:Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current.

Ground Pin Current:Typically 6mA at 3A load current.

Documents

Technical documentation and resources

LP3963/LP3966 3A Fast Ultra Low Dropout Linear Regulators datasheet (Rev. H)

Data sheet