Specification	LP3872EMP-5.0/NOPB

Control Features	Enable
Current - Output	1.5 A
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-261-5, TO-261AB
Protection Features	Over Temperature, Over Current, Short Circuit
PSRR [Max]	73 dB
PSRR [Min]	57 dB
Supplier Device Package	SOT-223-5
Voltage - Input (Max) [Max]	7 V
Voltage - Output (Min/Fixed)	5 V
Voltage Dropout (Max) [Max]	0.55 V

LP3872 Series

1.5-A, low-dropout voltage regulator with power good & enable

Part	Current - Quiescent (Iq)	Voltage - Output (Min/Fixed)	Operating Temperature [Max]	Operating Temperature [Min]	Control Features	Protection Features	Current - Supply (Max) [Max]	Output Configuration	Number of Regulators	Package / Case	Mounting Type	Supplier Device Package	PSRR [Max]	PSRR [Min]	Current - Output	Voltage - Input (Max) [Max]	Voltage Dropout (Max) [Max]	Output Type
Texas Instruments LP3872ES-5.0/NOPB	5 mA	5 V	125 °C	-40 °C	Enable	Over Current Over Temperature Short Circuit	15 mA	Positive	1	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Surface Mount	TO-263 (DDPAK-5)	73 dB	57 dB	1.5 A	7 V	0.55 V	1.81 mOhm
Texas Instruments LP3872ES-1.8/NOPB	5 mA	1.8 V	125 °C	-40 °C	Enable	Over Current Over Temperature Short Circuit	15 mA	Positive	1	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Surface Mount	TO-263 (DDPAK-5)	73 dB	57 dB	1.5 A	7 V	0.55 V	1.81 mOhm
Texas Instruments LP3872EMPX-2.5	5 mA	2.5 V	125 °C	-40 °C	Enable	Over Current Over Temperature Short Circuit	15 mA	Positive	1	TO-261-5 TO-261AB	Surface Mount	SOT-223-5	73 dB	57 dB	1.5 A	7 V	0.55 V	1.81 mOhm
Texas Instruments LP3872EMP-3.3	5 mA	3.3 V	125 °C	-40 °C	Enable	Over Current Over Temperature Short Circuit	15 mA	Positive	1	TO-261-5 TO-261AB	Surface Mount	SOT-223-5	73 dB	57 dB	1.5 A	7 V	0.55 V	1.81 mOhm
Texas Instruments LP3872EMP-5.0	5 mA	5 V	125 °C	-40 °C	Enable	Over Current Over Temperature Short Circuit	15 mA	Positive	1	TO-261-5 TO-261AB	Surface Mount	SOT-223-5	73 dB	57 dB	1.5 A	7 V	0.55 V	1.81 mOhm
Texas Instruments LP3872ES-5.0	5 mA	5 V	125 °C	-40 °C	Enable	Over Current Over Temperature Short Circuit	15 mA	Positive	1	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Surface Mount	TO-263 (DDPAK-5)	73 dB	57 dB	1.5 A	7 V	0.55 V	1.81 mOhm
Texas Instruments LP3872ES-3.3	5 mA	3.3 V	125 °C	-40 °C	Enable	Over Current Over Temperature Short Circuit	15 mA	Positive	1	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Surface Mount	TO-263 (DDPAK-5)	73 dB	57 dB	1.5 A	7 V	0.55 V	1.81 mOhm
Texas Instruments LP3872ESX-3.3	5 mA	3.3 V	125 °C	-40 °C	Enable	Over Current Over Temperature Short Circuit	15 mA	Positive	1	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Surface Mount	TO-263 (DDPAK-5)	73 dB	57 dB	1.5 A	7 V	0.55 V	1.81 mOhm
Texas Instruments LP3872ESX-2.5/NOPB	5 mA	2.5 V	125 °C	-40 °C	Enable	Over Current Over Temperature Short Circuit	15 mA	Positive	1	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Surface Mount	TO-263 (DDPAK-5)	73 dB	57 dB	1.5 A	7 V	0.55 V	1.81 mOhm
Texas Instruments LP3872EMP-5.0/NOPB	5 mA	5 V	125 °C	-40 °C	Enable	Over Current Over Temperature Short Circuit	15 mA	Positive	1	TO-261-5 TO-261AB	Surface Mount	SOT-223-5	73 dB	57 dB	1.5 A	7 V	0.55 V	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	$ 3.65
		10	$ 3.28
		25	$ 3.10
		100	$ 2.69
		250	$ 2.55
		500	$ 2.29
	Digi-Reel®	1	$ 3.65
		10	$ 3.28
		25	$ 3.10
		100	$ 2.69
		250	$ 2.55
		500	$ 2.29
	Tape & Reel (TR)	1000	$ 1.19
Texas Instruments	LARGE T&R	1	$ 1.92
		100	$ 1.68
		250	$ 1.18
		1000	$ 0.95

Description

General part information

LP3872 Series

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.

Documents

Technical documentation and resources

LP387x 1.5-A Fast Ultra-Low-Dropout Linear Regulators datasheet (Rev. H)

Data sheet