Specification	LP3961EMP-3.3/NOPB

Control Features	Enable
Current - Output	800 mA
Current - Quiescent (Iq)	9 mA
Current - Supply (Max) [Max]	15 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	TO-261-5, TO-261AB
Protection Features	Over Temperature, Over Current, Short Circuit
Supplier Device Package	SOT-223-5
Voltage - Input (Max) [Max]	7 V
Voltage - Output (Min/Fixed)	3.3 V
Voltage Dropout (Max) [Max]	0.35 V

LP3961 Series

Part	Current - Supply (Max) [Max]	Voltage - Input (Max) [Max]	Package / Case	Number of Regulators	Protection Features	Current - Output	Current - Quiescent (Iq)	Output Type	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Voltage - Output (Min/Fixed)	Output Configuration	Control Features	Voltage Dropout (Max) [Max]
Texas Instruments LP3961EMPX-2.5	15 mA	7 V	TO-261-5 TO-261AB	1	Over Current Over Temperature Short Circuit	800 mA	9 mA	1.81 mOhm	Surface Mount	125 °C	-40 °C	SOT-223-5	2.5 V	Positive	Enable	0.35 V
Texas Instruments LP3961EMP-5.0	15 mA	7 V	TO-261-5 TO-261AB	1	Over Current Over Temperature Short Circuit	800 mA	9 mA	1.81 mOhm	Surface Mount	125 °C	-40 °C	SOT-223-5	5 V	Positive	Enable	0.35 V
Texas Instruments LP3961ES-3.3/NOPB	15 mA	7 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1	Over Current Over Temperature Short Circuit	800 mA	9 mA	1.81 mOhm	Surface Mount	125 °C	-40 °C	TO-263 (DDPAK-5)	3.3 V	Positive	Enable	0.35 V
Texas Instruments LP3961EMP-3.3/NOPB	15 mA	7 V	TO-261-5 TO-261AB	1	Over Current Over Temperature Short Circuit	800 mA	9 mA	1.81 mOhm	Surface Mount	125 °C	-40 °C	SOT-223-5	3.3 V	Positive	Enable	0.35 V
Texas Instruments LP3961EMPX-3.3	15 mA	7 V	TO-261-5 TO-261AB	1	Over Current Over Temperature Short Circuit	800 mA	9 mA	1.81 mOhm	Surface Mount	125 °C	-40 °C	SOT-223-5	3.3 V	Positive	Enable	0.35 V
Texas Instruments LP3961ES-5.0/NOPB	15 mA	7 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1	Over Current Over Temperature Short Circuit	800 mA	9 mA	1.81 mOhm	Surface Mount	125 °C	-40 °C	TO-263 (DDPAK-5)	5 V	Positive	Enable	0.35 V
Texas Instruments LP3961EMPX-3.3/NOPB	15 mA	7 V	TO-261-5 TO-261AB	1	Over Current Over Temperature Short Circuit	800 mA	9 mA	1.81 mOhm	Surface Mount	125 °C	-40 °C	SOT-223-5	3.3 V	Positive	Enable	0.35 V
Texas Instruments LP3961ES-1.8/NOPB	15 mA	7 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1	Over Current Over Temperature Short Circuit	800 mA	9 mA	1.81 mOhm	Surface Mount	125 °C	-40 °C	TO-263 (DDPAK-5)	1.8 V	Positive	Enable	0.35 V
Texas Instruments LP3961ES-2.5/NOPB	15 mA	7 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1	Over Current Over Temperature Short Circuit	800 mA	9 mA	1.81 mOhm	Surface Mount	125 °C	-40 °C	TO-263 (DDPAK-5)	2.5 V	Positive	Enable	0.35 V
Texas Instruments LP3961ET-2.5/NOPB	15 mA	7 V	TO-220-5 Formed Leads	1	Over Current Over Temperature Short Circuit	800 mA	9 mA	1.81 mOhm	Through Hole	125 °C	-40 °C	TO-220-5	2.5 V	Positive	Enable	0.35 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	$ 4.58
		10	$ 3.04
		25	$ 2.64
		100	$ 2.19
		250	$ 1.97
		500	$ 1.84
	Digi-Reel®	1	$ 4.58
		10	$ 3.04
		25	$ 2.64
		100	$ 2.19
		250	$ 1.97
		500	$ 1.84
	Tape & Reel (TR)	1000	$ 1.73
		2000	$ 1.63
		3000	$ 1.59
		5000	$ 1.54
Texas Instruments	SMALL T&R	1	$ 3.21
		100	$ 2.08
		250	$ 1.56
		1000	$ 1.04

Description

General part information

LP3961 Series

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.

Documents

Technical documentation and resources

LP396x 800-mA Fast Ultra-Low-Dropout Linear Regulators datasheet (Rev. J)

Data sheet