Specification	LP3990MFX-3.3/NOPB

Control Features	Enable
Current - Output	150 mA
Current - Quiescent (Iq)	80 µA
Current - Supply (Max) [Max]	120 µA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	SC-74A, SOT-753
PSRR [Max]	35 dB
PSRR [Min]	55 dB
Supplier Device Package	SOT-23-5
Voltage - Input (Max) [Max]	6 V
Voltage - Output (Min/Fixed)	3.3 V
Voltage Dropout (Max) [Max]	0.2 V

LP3990-Q1 Series

150-mA, low-IQ, low-dropout voltage regulator with enable & low-VOUT

Part	Number of Regulators	Package / Case	Supplier Device Package	Control Features	Current - Quiescent (Iq)	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Current - Supply (Max) [Max]	Current - Output	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	PSRR [Max]	PSRR [Min]	Output Type	Voltage Dropout (Max) [Max]	Mounting Type	Grade	Qualification
Texas Instruments LP3990MF-1.8/NOPB	1	SC-74A SOT-753	SOT-23-5	Enable	80 µA	Positive	85 °C	-40 °C	120 µA	150 mA	6 V	1.8 V	35 dB	55 dB	1.81 mOhm	0.2 V	Surface Mount
Texas Instruments LP3990MFX-3.3/NOPB	1	SC-74A SOT-753	SOT-23-5	Enable	80 µA	Positive	85 °C	-40 °C	120 µA	150 mA	6 V	3.3 V	35 dB	55 dB	1.81 mOhm	0.2 V	Surface Mount
Texas Instruments LP3990TLX-2.8/NOPB	1	4-WFBGA DSBGA	4-DSBGA (1x1)	Enable	80 µA	Positive	85 °C	-40 °C	120 µA	150 mA	6 V	2.8 V	35 dB	55 dB	1.81 mOhm	0.2 V	Surface Mount
Texas Instruments LP3990SD-0.8/NOPB	1		6-WSON (3x3)	Enable	80 µA	Positive	85 °C	-40 °C	120 µA	150 mA	6 V	0.8 V	35 dB	55 dB	1.81 mOhm	0.2 V	Surface Mount
Texas Instruments LP3990MFX-1.8/NOPB	1	SC-74A SOT-753	SOT-23-5	Enable	80 µA	Positive	85 °C	-40 °C	120 µA	150 mA	6 V	1.8 V	35 dB	55 dB	1.81 mOhm	0.2 V	Surface Mount
Texas Instruments LP3990TL-1.35/NOPB	1	4-WFBGA DSBGA	4-DSBGA (1x1)	Enable	80 µA	Positive	85 °C	-40 °C	120 µA	150 mA	6 V	1.35 V	35 dB	55 dB	1.81 mOhm	0.2 V	Surface Mount
Texas Instruments LP3990SD-1.8/NOPB	1		6-WSON (3x3)	Enable	80 µA	Positive	85 °C	-40 °C	120 µA	150 mA	6 V	1.8 V	35 dB	55 dB	1.81 mOhm	0.2 V	Surface Mount
Texas Instruments LP3990SDX-1.5/NOPB	1		6-WSON (3x3)	Enable	80 µA	Positive	85 °C	-40 °C	120 µA	150 mA	6 V	1.5 V	35 dB	55 dB	1.81 mOhm	0.2 V	Surface Mount
Texas Instruments LP3990QTLX-2.8Q1	1	4-WFBGA DSBGA	4-DSBGA (1x1)	Enable	80 µA	Positive	125 °C	-40 °C	120 µA	150 mA	6 V	2.8 V	35 dB	55 dB	1.81 mOhm	0.2 V	Surface Mount	Automotive	AEC-Q100
Texas Instruments LP3990SD-1.35/NOPB	1		6-WSON (3x3)	Enable	80 µA	Positive	85 °C	-40 °C	120 µA	150 mA	6 V	1.35 V	35 dB	55 dB	1.81 mOhm	0.2 V	Surface Mount

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	$ 1.30
		10	$ 0.82
		25	$ 0.69
		100	$ 0.54
		250	$ 0.47
		500	$ 0.43
		1000	$ 0.39
	Digi-Reel®	1	$ 1.30
		10	$ 0.82
		25	$ 0.69
		100	$ 0.54
		250	$ 0.47
		500	$ 0.43
		1000	$ 0.39
	Tape & Reel (TR)	3000	$ 0.35
		6000	$ 0.32
		9000	$ 0.31
		15000	$ 0.30
		21000	$ 0.29
		30000	$ 0.29
Texas Instruments	LARGE T&R	1	$ 0.54
		100	$ 0.41
		250	$ 0.30
		1000	$ 0.22

Description

General part information

LP3990-Q1 Series

The LP3990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low-noise, and low-quiescent current. The LP3990 will provide a 0.8-V output from the low input voltage of 2 V at up to a 150-mA load current. When switched into shutdown mode via a logic signal at the enable pin (EN), the power consumption is reduced to virtually zero.

The LP3990 is designed to be stable with space-saving ceramic capacitors with values as low as 1 µF.

Performance is specified for a –40°C to 125°C junction temperature range.

Documents

Technical documentation and resources

LP3990 150-mA Linear Voltage Regulator for Digital Applications datasheet (Rev. J)

Data sheet