Integrated Circuits (ICs)

LP3871ESX-3.3/NOPB

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Texas Instruments

800-MA, 7-V, LOW-DROPOUT VOLTAGE REGULATOR WITH POWER GOOD & ENABLE

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Integrated Circuits (ICs)

LP3871ESX-3.3/NOPB

Active

Texas Instruments

800-MA, 7-V, LOW-DROPOUT VOLTAGE REGULATOR WITH POWER GOOD & ENABLE

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LP3871ESX-3.3/NOPB

Control Features	Enable
Current - Output	800 mA
Current - Quiescent (Iq)	5 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-263-6, TO-263BA, D2PAK (5 Leads + Tab)
Protection Features	Over Temperature, Over Current, Short Circuit
PSRR [Max]	73 dB
PSRR [Min]	57 dB
Supplier Device Package	TO-263 (DDPAK-5)
Voltage - Input (Max) [Max]	7 V
Voltage - Output (Min/Fixed)	3.3 V
Voltage Dropout (Max) [Max]	0.35 V

LP3871 Series

Part	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed)	PSRR [Max]	PSRR [Min]	Control Features	Number of Regulators	Current - Supply (Max) [Max]	Voltage - Input (Max) [Max]	Current - Output	Protection Features	Mounting Type	Output Configuration	Current - Quiescent (Iq)	Voltage Dropout (Max) [Max]	Supplier Device Package	Package / Case	Output Type
Texas Instruments LP3871ESX-3.3/NOPB	125 °C	-40 °C	3.3 V	73 dB	57 dB	Enable	1	15 mA	7 V	800 mA	Over Current Over Temperature Short Circuit	Surface Mount	Positive	5 mA	0.35 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1.81 mOhm
Texas Instruments LP3871ES-5.0/NOPB	125 °C	-40 °C	5 V	73 dB	57 dB	Enable	1	15 mA	7 V	800 mA	Over Current Over Temperature Short Circuit	Surface Mount	Positive	5 mA	0.35 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1.81 mOhm
Texas Instruments LP3871EMPX-3.3/NOPB	125 °C	-40 °C	3.3 V	73 dB	57 dB	Enable	1	15 mA	7 V	800 mA	Over Current Over Temperature Short Circuit	Surface Mount	Positive	5 mA	0.35 V	SOT-223-5	TO-261-5 TO-261AB	1.81 mOhm
Texas Instruments LP3871ET-1.8/NOPB	125 °C	-40 °C	1.8 V	73 dB	57 dB	Enable	1	15 mA	7 V	800 mA	Over Current Over Temperature Short Circuit	Through Hole	Positive	5 mA	0.35 V	TO-220-5	TO-220-5 Formed Leads	1.81 mOhm
Texas Instruments LP3871EMPX-2.5/NOPB	125 °C	-40 °C	2.5 V	73 dB	57 dB	Enable	1	15 mA	7 V	800 mA	Over Current Over Temperature Short Circuit	Surface Mount	Positive	5 mA	0.35 V	SOT-223-5	TO-261-5 TO-261AB	1.81 mOhm
Texas Instruments LP3871EMP-1.8	125 °C	-40 °C	1.8 V	73 dB	57 dB	Enable	1	15 mA	7 V	800 mA	Over Current Over Temperature Short Circuit	Surface Mount	Positive	5 mA	0.35 V	SOT-223-5	TO-261-5 TO-261AB	1.81 mOhm
Texas Instruments LP3871ESX-2.5/NOPB	125 °C	-40 °C	2.5 V	73 dB	57 dB	Enable	1	15 mA	7 V	800 mA	Over Current Over Temperature Short Circuit	Surface Mount	Positive	5 mA	0.35 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1.81 mOhm
Texas Instruments LP3871EMP-2.5/NOPB	125 °C	-40 °C	2.5 V	73 dB	57 dB	Enable	1	15 mA	7 V	800 mA	Over Current Over Temperature Short Circuit	Surface Mount	Positive	5 mA	0.35 V	SOT-223-5	TO-261-5 TO-261AB	1.81 mOhm
Texas Instruments LP3871ES-1.8	125 °C	-40 °C	1.8 V	73 dB	57 dB	Enable	1	15 mA	7 V	800 mA	Over Current Over Temperature Short Circuit	Surface Mount	Positive	5 mA	0.35 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1.81 mOhm
Texas Instruments LP3871EMPX-3.3	125 °C	-40 °C	3.3 V	73 dB	57 dB	Enable	1	15 mA	7 V	800 mA	Over Current Over Temperature Short Circuit	Surface Mount	Positive	5 mA	0.35 V	SOT-223-5	TO-261-5 TO-261AB	1.81 mOhm

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	$ 4.23
		10	$ 2.79
		25	$ 2.42
		100	$ 2.00
		250	$ 1.80
	Digi-Reel®	1	$ 4.23
		10	$ 2.79
		25	$ 2.42
		100	$ 2.00
		250	$ 1.80
	Tape & Reel (TR)	500	$ 1.60
		1000	$ 1.50
		1500	$ 1.45
		2500	$ 1.39
		3500	$ 1.36
		5000	$ 1.33
Texas Instruments	LARGE T&R	1	$ 2.22
		100	$ 1.95
		250	$ 1.36
		1000	$ 1.10

Description

General part information

LP3871 Series

The LP3871 and LP3874 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 devices are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3871 and LP3874 to operate under extremely low dropout conditions.

Dropout Voltage:Ultra-low-dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 0.8-A load current.

Ground Pin Current:Typically 6 mA at 0.8-A load current.

Documents

Technical documentation and resources