Specification	LP3988IMFX-2.85/NOPB

Control Features	Enable, Power Good
Current - Output	150 mA
Current - Quiescent (Iq)	120 µA
Current - Supply (Max) [Max]	200 µA
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	SC-74A, SOT-753
PSRR [Max]	65 dB
PSRR [Min]	45 dB
Supplier Device Package	SOT-23-5
Voltage - Input (Max) [Max]	6 V
Voltage - Output (Min/Fixed)	2.85 V
Voltage Dropout (Max) [Max]	0.15 V

LP3988-Q1 Series

Automotive 150-mA, low-dropout voltage regulator with power good & enable

Part	Current - Quiescent (Iq)	Supplier Device Package	Current - Supply (Max) [Max]	Voltage Dropout (Max) [Max]	PSRR [Min]	PSRR [Max]	Control Features	Output Configuration	Mounting Type	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Voltage - Output (Min/Fixed)	Number of Regulators	Voltage - Input (Max) [Max]	Package / Case
Texas Instruments LP3988ITL-1.85/NOPB	120 µA	5-DSBGA (1.41x1.08)	200 µA	0.15 V	45 dB	65 dB	Enable Power Good	Positive	Surface Mount	1.81 mOhm	125 °C	-40 °C	150 mA	1.85 V	1	6 V
Texas Instruments LP3988IMF-2.85/NOPB	120 µA	SOT-23-5	200 µA	0.15 V	45 dB	65 dB	Enable Power Good	Positive	Surface Mount	1.81 mOhm	125 °C	-40 °C	150 mA	2.85 V	1	6 V	SC-74A SOT-753
Texas Instruments LP3988IMF-3.0/NOPB	120 µA	SOT-23-5	200 µA	0.15 V	45 dB	65 dB	Enable Power Good	Positive	Surface Mount	1.81 mOhm	125 °C	-40 °C	150 mA		1	6 V	SC-74A SOT-753
Texas Instruments LP3988IMF-3.0	120 µA	SOT-23-5	200 µA	0.15 V	45 dB	65 dB	Enable Power Good	Positive	Surface Mount	1.81 mOhm	125 °C	-40 °C	150 mA		1	6 V	SC-74A SOT-753
Texas Instruments LP3988IMF-3.3	120 µA	SOT-23-5	200 µA	0.15 V	45 dB	65 dB	Enable Power Good	Positive	Surface Mount	1.81 mOhm	125 °C	-40 °C	150 mA	3.3 V	1	6 V	SC-74A SOT-753
Texas Instruments LP3988IMFX-2.85/NOPB	120 µA	SOT-23-5	200 µA	0.15 V	45 dB	65 dB	Enable Power Good	Positive	Surface Mount	1.81 mOhm	125 °C	-40 °C	150 mA	2.85 V	1	6 V	SC-74A SOT-753
Texas Instruments LP3988ITL-2.6/NOPB	120 µA	5-DSBGA (1.41x1.08)	200 µA	0.15 V	45 dB	65 dB	Enable Power Good	Positive	Surface Mount	1.81 mOhm	125 °C	-40 °C	150 mA	2.6 V	1	6 V
Texas Instruments LP3988ITLX-2.85/NOPB	120 µA	5-DSBGA (1.41x1.08)	200 µA	0.15 V	45 dB	65 dB	Enable Power Good	Positive	Surface Mount	1.81 mOhm	125 °C	-40 °C	150 mA	2.85 V	1	6 V
Texas Instruments LP3988IMFX-3.0/NOPB	120 µA	SOT-23-5	200 µA	0.15 V	45 dB	65 dB	Enable Power Good	Positive	Surface Mount	1.81 mOhm	125 °C	-40 °C	150 mA		1	6 V	SC-74A SOT-753
Texas Instruments LP3988ITLX-1.85/NOPB	120 µA	5-DSBGA (1.41x1.08)	200 µA	0.15 V	45 dB	65 dB	Enable Power Good	Positive	Surface Mount	1.81 mOhm	125 °C	-40 °C	150 mA	1.85 V	1	6 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	$ 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	$ 0.28
Texas Instruments	LARGE T&R	1	$ 0.54
		100	$ 0.42
		250	$ 0.31
		1000	$ 0.22

Description

General part information

LP3988-Q1 Series

The LP3988-Q1 is a 150-mA low-dropout regulator designed specially to meet requirements of portable battery applications. The LP3988-Q1 works with a space-saving 1-µF ceramic capacitor. The LP3988-Q1 features an error flag-output that indicates a faulty output condition.

The LP3988-Q1 has performance optimized for battery-powered systems to deliver low noise, extremely low dropout voltage, and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.

Power-supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. The device maintains high power-supply rejection down to lower input voltage levels common to battery-operated circuits.

Documents

Technical documentation and resources

LP3988 Micropower, 150-mA Ultra-Low-Dropout CMOS Voltage Regulator With Power Good datasheet (Rev. E)

Data sheet