Texas Instruments-LM2931CT Linear Regulators LDO Regulator Pos 3V to 24V 0.1A 5-Pin(5+Tab) TO-220 Tube

Integrated Circuits (ICs)

LP38842T-1.5/NOPB

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1.5-A, LOW-VIN (0.915-V), ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH ENABLE

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Search across all available documentation for this part.

DocumentsLP38842 1.5A Ultra Low Dropout Linear Reg Stable w/Ceramic Output Cap datasheet (Rev. C)AN-1457 LP3884X-ADJ Evaluation Board (Rev. A)

Integrated Circuits (ICs)

LP38842T-1.5/NOPB

Active

Texas Instruments

1.5-A, LOW-VIN (0.915-V), ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH ENABLE

Deep-Dive with AI

DocumentsLP38842 1.5A Ultra Low Dropout Linear Reg Stable w/Ceramic Output Cap datasheet (Rev. C)AN-1457 LP3884X-ADJ Evaluation Board (Rev. A)

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LP38842T-1.5/NOPB

Control Features	Enable
Current - Output	1.5 A
Current - Quiescent (Iq)	30 µA
Current - Supply (Max)	40 mA
Mounting Type	Through Hole
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-220-5
Protection Features	Under Voltage Lockout (UVLO), Over Temperature, Over Current
PSRR [Max]	80 dB
PSRR [Min]	65 dB
Supplier Device Package	TO-220-5
Voltage - Input (Max) [Max]	5.5 V
Voltage - Output (Min/Fixed)	1.5 V
Voltage Dropout (Max) [Max]	0.315 V

LP38842-ADJ Series

1.5-A, low-VIN (0.675-V), adjustable ultra-low-dropout voltage regulator with enable

Part	Supplier Device Package	Current - Supply (Max)	Current - Output	Current - Quiescent (Iq)	Number of Regulators	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Voltage - Input (Max) [Max]	PSRR [Min]	PSRR [Max]	Voltage - Output (Min/Fixed)	Protection Features	Output Type	Package / Case	Control Features	Mounting Type	Voltage Dropout (Max) [Max]	Channels per IC	Board Type	Supplied Contents	Regulator Type	Utilized IC / Part	Voltage - Output	Voltage - Input [Max]	Voltage - Input [Min]	Output Type	Package / Case [y]	Package / Case [x]	Voltage - Output (Max)
Texas Instruments LP38842S-1.5	TO-263 (DDPAK-5)	40 mA	1.5 A	30 µA	1	125 °C	-40 °C	Positive	5.5 V	65 dB	80 dB	1.5 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	1.81 mOhm	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Enable	Surface Mount	0.315 V
Texas Instruments LP38842EVAL			1.5 A																1 - Single	Fully Populated	Board(s)	Positive Adjustable	LP38842	1.2 V	5.5 V	4.5 V
Texas Instruments LP38842S-0.8	TO-263 (DDPAK-5)	40 mA	1.5 A	30 µA	1	125 °C	-40 °C	Positive	5.5 V	58 dB	80 dB	0.8 V	Over Current Over Temperature Short Circuit	1.81 mOhm	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Enable	Surface Mount	0.315 V
Texas Instruments LP38842T-1.5/NOPB	TO-220-5	40 mA	1.5 A	30 µA	1	125 °C	-40 °C	Positive	5.5 V	65 dB	80 dB	1.5 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	1.81 mOhm	TO-220-5	Enable	Through Hole	0.315 V
Texas Instruments LP38842MR-ADJ/NOPB	8-SO PowerPad	40 mA	1.5 A	30 µA	1	125 °C	-40 °C	Positive	5.5 V	58 dB	80 dB	0.56 V	Over Current Over Temperature Short Circuit		8-PowerSOIC	Enable	Surface Mount	0.115 V									Adjustable	3.9 mm	0.154 in	1.5 V
Texas Instruments LP38842T-1.2	TO-220-5	40 mA	1.5 A	30 µA	1	125 °C	-40 °C	Positive	5.5 V	65 dB	80 dB	1.2 V	Over Current Over Temperature Short Circuit	1.81 mOhm	TO-220-5	Enable	Through Hole	0.315 V
Texas Instruments LP38842MRX-ADJ	8-SO PowerPad	40 mA	1.5 A	30 µA	1	125 °C	-40 °C	Positive	5.5 V	58 dB	80 dB	0.56 V	Over Current Over Temperature Short Circuit		8-PowerSOIC	Enable	Surface Mount	0.115 V									Adjustable	3.9 mm	0.154 in	1.5 V
Texas Instruments LP38842MRX-ADJ/NOPB	8-SO PowerPad	40 mA	1.5 A	30 µA	1	125 °C	-40 °C	Positive	5.5 V	58 dB	80 dB	0.56 V	Over Current Over Temperature Short Circuit		8-PowerSOIC	Enable	Surface Mount	0.115 V									Adjustable	3.9 mm	0.154 in	1.5 V
Texas Instruments LP38842MR-ADJ	8-SO PowerPad	40 mA	1.5 A	30 µA	1	125 °C	-40 °C	Positive	5.5 V	58 dB	80 dB	0.56 V	Over Current Over Temperature Short Circuit		8-PowerSOIC	Enable	Surface Mount	0.115 V									Adjustable	3.9 mm	0.154 in	1.5 V
Texas Instruments LP38842S-1.2	TO-263 (DDPAK-5)	40 mA	1.5 A	30 µA	1	125 °C	-40 °C	Positive	5.5 V	65 dB	80 dB	1.2 V	Over Current Over Temperature Short Circuit	1.81 mOhm	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Enable	Surface Mount	0.315 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.97
		10	$ 1.77
		45	$ 1.67
		135	$ 1.45
		270	$ 1.37
		540	$ 1.31
Texas Instruments	TUBE	1	$ 4.48
		100	$ 2.90
		250	$ 2.18
		1000	$ 1.45

Description

General part information

LP38842-ADJ Series

The LP38842-ADJ is a high current, fast response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.

The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in the SO PowerPAD package.

Dropout Voltage:115 mV (typ) at 1.5A load current.

Documents

Technical documentation and resources

LP38842 1.5A Ultra Low Dropout Linear Reg Stable w/Ceramic Output Cap datasheet (Rev. C)

Data sheet

AN-1457 LP3884X-ADJ Evaluation Board (Rev. A)

EVM User's guide