LP38842 Series

1.5-A, low-VIN (0.915-V), ultra-low-dropout voltage regulator with enable

Link to Manufacturer Page: https://www.ti.com/

Catalog

1.5-A, low-VIN (0.915-V), ultra-low-dropout voltage regulator with enable

Part	Package / Case	Voltage - Input (Max) [Max]	Output Type	Number of Regulators	Current - Quiescent (Iq)	PSRR [Max]	PSRR [Min]	Output Configuration	Current - Supply (Max) [Max]	Control Features	Current - Output	Protection Features	Mounting Type	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed)	Voltage Dropout (Max) [Max]	Voltage - Output (Max) [Max]	Output Type	Voltage Dropout (Max)	Package / Case [custom]	Package / Case [custom]	Board Type	Channels per IC	Voltage - Output	Utilized IC / Part	Supplied Contents	Voltage - Input [Max]	Voltage - Input [Min]	Regulator Type
Texas Instruments LP38842SX-1.5/NOPB	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	5.5 V	27.03 °C/W	1	30 µA	80 dB	65 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Under Voltage Lockout (UVLO)	Surface Mount	TO-263 (DDPAK-5)	125 °C	-40 °C	1.5 V	0.315 V
Texas Instruments LP38842MRX-ADJ	8-PowerSOIC	5.5 V		1	30 µA	80 dB	58 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Surface Mount	8-SO PowerPad	125 °C	-40 °C	0.56 V		1.5 V	Adjustable	0.115 V	3.9 mm	0.154 in
Texas Instruments LP38842T-0.8/NOPB	TO-220-5	5.5 V	27.03 °C/W	1	30 µA	80 dB	58 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Through Hole	TO-220-5	125 °C	-40 °C	0.8 V	0.315 V
Texas Instruments LP38842SX-1.2	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	5.5 V	27.03 °C/W	1	30 µA	80 dB	65 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Surface Mount	TO-263 (DDPAK-5)	125 °C	-40 °C	1.2 V	0.315 V
Texas Instruments LP38842MRX-ADJ/NOPB	8-PowerSOIC	5.5 V		1	30 µA	80 dB	58 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Surface Mount	8-SO PowerPad	125 °C	-40 °C	0.56 V		1.5 V	Adjustable	0.115 V	3.9 mm	0.154 in
Texas Instruments LP38842T-1.2/NOPB	TO-220-5	5.5 V	27.03 °C/W	1	30 µA	80 dB	65 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Through Hole	TO-220-5	125 °C	-40 °C	1.2 V	0.315 V
Texas Instruments LP38842S-1.5/NOPB	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	5.5 V	27.03 °C/W	1	30 µA	80 dB	65 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Under Voltage Lockout (UVLO)	Surface Mount	TO-263 (DDPAK-5)	125 °C	-40 °C	1.5 V	0.315 V
Texas Instruments LP38842S-1.2/NOPB	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	5.5 V	27.03 °C/W	1	30 µA	80 dB	65 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Surface Mount	TO-263 (DDPAK-5)	125 °C	-40 °C	1.2 V	0.315 V
Texas Instruments LP38842S-1.5	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	5.5 V	27.03 °C/W	1	30 µA	80 dB	65 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Under Voltage Lockout (UVLO)	Surface Mount	TO-263 (DDPAK-5)	125 °C	-40 °C	1.5 V	0.315 V
Texas Instruments LP38842T-1.2	TO-220-5	5.5 V	27.03 °C/W	1	30 µA	80 dB	65 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Through Hole	TO-220-5	125 °C	-40 °C	1.2 V	0.315 V
Texas Instruments LP38842T-1.5/NOPB	TO-220-5	5.5 V	27.03 °C/W	1	30 µA	80 dB	65 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Under Voltage Lockout (UVLO)	Through Hole	TO-220-5	125 °C	-40 °C	1.5 V	0.315 V
Texas Instruments LP38842S-0.8/NOPB	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	5.5 V	27.03 °C/W	1	30 µA	80 dB	58 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Surface Mount	TO-263 (DDPAK-5)	125 °C	-40 °C	0.8 V	0.315 V
Texas Instruments LP38842MR-ADJ/NOPB	8-PowerSOIC	5.5 V		1	30 µA	80 dB	58 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Surface Mount	8-SO PowerPad	125 °C	-40 °C	0.56 V		1.5 V	Adjustable	0.115 V	3.9 mm	0.154 in
Texas Instruments LP38842S-0.8	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	5.5 V	27.03 °C/W	1	30 µA	80 dB	58 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Surface Mount	TO-263 (DDPAK-5)	125 °C	-40 °C	0.8 V	0.315 V
Texas Instruments LP38842S-1.2	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	5.5 V	27.03 °C/W	1	30 µA	80 dB	65 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Surface Mount	TO-263 (DDPAK-5)	125 °C	-40 °C	1.2 V	0.315 V
Texas Instruments LP38842MR-ADJ	8-PowerSOIC	5.5 V		1	30 µA	80 dB	58 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Surface Mount	8-SO PowerPad	125 °C	-40 °C	0.56 V		1.5 V	Adjustable	0.115 V	3.9 mm	0.154 in
Texas Instruments LP38842EVAL											1.5 A													Fully Populated	1	1.2 V	LP38842	Board(s)	5.5 V	4.5 V	Positive Adjustable
Texas Instruments LP38842SX-0.8/NOPB	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	5.5 V	27.03 °C/W	1	30 µA	80 dB	58 dB	Positive	40 mA	Enable	1.5 A	Over Current, Over Temperature, Short Circuit	Surface Mount	TO-263 (DDPAK-5)	125 °C	-40 °C	0.8 V	0.315 V

Key Features

• Ideal for Conversion from 1.8V or 1.5V InputsDesigned for use with low ESR Ceramic Capacitors0.8V, 1.2V and 1.5V Standard Voltages AvailableUltra Low Dropout Voltage (115mV at 1.5A typ)1.5% Initial Output AccuracyLoad Regulation of 0.1%/A (typical)30nA Quiescent Current in Shutdown (typical)Low Ground Pin Current at all LoadsOver Temperature/Over Current ProtectionAvailable in 5 Lead TO-220 and DDPAK/TO-263 Packages−40°C to +125°C Junction Temperature RangeAll trademarks are the property of their respective owners.Ideal for Conversion from 1.8V or 1.5V InputsDesigned for use with low ESR Ceramic Capacitors0.8V, 1.2V and 1.5V Standard Voltages AvailableUltra Low Dropout Voltage (115mV at 1.5A typ)1.5% Initial Output AccuracyLoad Regulation of 0.1%/A (typical)30nA Quiescent Current in Shutdown (typical)Low Ground Pin Current at all LoadsOver Temperature/Over Current ProtectionAvailable in 5 Lead TO-220 and DDPAK/TO-263 Packages−40°C to +125°C Junction Temperature RangeAll trademarks are the property of their respective owners.

Description

The LP38842 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 TO-220 and DDPAK/TO-263 packages. Dropout Voltage:115 mV (typ) at 1.5A load current. Quiescent Current:30 mA (typ) at full load. Shutdown Current:30 nA (typ) whenS/Dpin is low. Precision Output Voltage:1.5% room temperature accuracy. The LP38842 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 TO-220 and DDPAK/TO-263 packages. Dropout Voltage:115 mV (typ) at 1.5A load current. Quiescent Current:30 mA (typ) at full load. Shutdown Current:30 nA (typ) whenS/Dpin is low. Precision Output Voltage:1.5% room temperature accuracy.