LP38843S-1.5/NOPB

Active

Texas Instruments

3-A, LOW-VIN (1.01-V), ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH ENABLE

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsLP38843 3A Ultra Low Dropout Linear Reg Stable w/Ceramic Output Cap datasheet (Rev. C)

LP38843S-1.5/NOPB

Active

Texas Instruments

3-A, LOW-VIN (1.01-V), ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH ENABLE

Deep-Dive with AI

DocumentsLP38843 3A Ultra Low Dropout Linear Reg Stable w/Ceramic Output Cap datasheet (Rev. C)

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	LP38843S-1.5/NOPB	LP38843 Series

Control Features	Enable	Enable
Current - Output	3 A	3 A
Current - Quiescent (Iq)	30 µA	30 µA
Current - Supply (Max) [Max]	40 mA	40 mA
Mounting Type	Surface Mount	Surface Mount, Through Hole
Number of Regulators	1	1
Operating Temperature [Max]	125 °C	125 °C
Operating Temperature [Min]	-40 °C	-40 °C
Output Configuration	Positive	Positive
Output Type	27.03 °C/W	27.03 °C/W
Package / Case	TO-263BA, D2PAK (5 Leads + Tab), TO-263-6	TO-263BA, D2PAK (5 Leads + Tab), TO-263-6, TO-220-5
Protection Features	Over Current, Short Circuit, Over Temperature	Over Current, Short Circuit, Over Temperature
PSRR [Max]	80 dB	80 dB
PSRR [Min]	65 dB	65 dB
Supplier Device Package	TO-263 (DDPAK-5)	TO-263 (DDPAK-5), TO-220-5
Voltage - Input (Max) [Max]	5.5 V	5.5 V
Voltage - Output (Min/Fixed)	1.5 V	0.8 - 1.5 V
Voltage Dropout (Max) [Max]	0.5 V	0.5 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	$ 3.73
		10	$ 3.35
		45	$ 3.16
		135	$ 2.74
		270	$ 2.60
		540	$ 2.48
Texas Instruments	TUBE	1	$ 4.00
		100	$ 3.50
		250	$ 2.46
		1000	$ 1.98

LP38843 Series

3-A, LOW-VIN (1.01-V), ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH ENABLE

Part	Package / Case	Control Features	Voltage - Output (Min/Fixed)	Current - Quiescent (Iq)	Output Type	Output Configuration	Current - Supply (Max) [Max]	Supplier Device Package	PSRR [Max]	PSRR [Min]	Voltage - Input (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Number of Regulators	Mounting Type	Protection Features	Voltage Dropout (Max) [Max]
Texas Instruments LP38843S-1.5/NOPB The LP38843 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:210 mV (typ) at 3A 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 LP38843 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:210 mV (typ) at 3A 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.	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Enable	1.5 V	30 µA	27.03 °C/W	Positive	40 mA	TO-263 (DDPAK-5)	80 dB	65 dB	5.5 V	125 °C	-40 °C	3 A	1	Surface Mount	Over Current, Over Temperature, Short Circuit	0.5 V
Texas Instruments LP38843SX-1.2/NOPB The LP38843 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:210 mV (typ) at 3A 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 LP38843 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:210 mV (typ) at 3A 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.	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Enable	1.2 V	30 µA	27.03 °C/W	Positive	40 mA	TO-263 (DDPAK-5)	80 dB	65 dB	5.5 V	125 °C	-40 °C	3 A	1	Surface Mount	Over Current, Over Temperature, Short Circuit	0.5 V
Texas Instruments LP38843SX-1.5/NOPB The LP38843 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:210 mV (typ) at 3A 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 LP38843 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:210 mV (typ) at 3A 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.	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Enable	1.5 V	30 µA	27.03 °C/W	Positive	40 mA	TO-263 (DDPAK-5)	80 dB	65 dB	5.5 V	125 °C	-40 °C	3 A	1	Surface Mount	Over Current, Over Temperature, Short Circuit	0.5 V
Texas Instruments LP38843T-0.8 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-220-5	TO-220-5	Enable	0.8 V	30 µA	27.03 °C/W	Positive	40 mA	TO-220-5	80 dB	65 dB	5.5 V	125 °C	-40 °C	3 A	1	Through Hole	Over Current, Over Temperature, Short Circuit	0.5 V
Texas Instruments LP38843T-1.5 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-220-5	TO-220-5	Enable	1.5 V	30 µA	27.03 °C/W	Positive	40 mA	TO-220-5	80 dB	65 dB	5.5 V	125 °C	-40 °C	3 A	1	Through Hole	Over Current, Over Temperature, Short Circuit	0.5 V
Texas Instruments LP38843T-1.2/NOPB The LP38843 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:210 mV (typ) at 3A 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 LP38843 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:210 mV (typ) at 3A 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.	TO-220-5	Enable	1.2 V	30 µA	27.03 °C/W	Positive	40 mA	TO-220-5	80 dB	65 dB	5.5 V	125 °C	-40 °C	3 A	1	Through Hole	Over Current, Over Temperature, Short Circuit	0.5 V
Texas Instruments LP38843S-1.2 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Enable	1.2 V	30 µA	27.03 °C/W	Positive	40 mA	TO-263 (DDPAK-5)	80 dB	65 dB	5.5 V	125 °C	-40 °C	3 A	1	Surface Mount	Over Current, Over Temperature, Short Circuit	0.5 V
Texas Instruments LP38843S-1.2/NOPB The LP38843 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:210 mV (typ) at 3A 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 LP38843 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:210 mV (typ) at 3A 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.	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Enable	1.2 V	30 µA	27.03 °C/W	Positive	40 mA	TO-263 (DDPAK-5)	80 dB	65 dB	5.5 V	125 °C	-40 °C	3 A	1	Surface Mount	Over Current, Over Temperature, Short Circuit	0.5 V
Texas Instruments LP38843T-1.2 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-220-5	TO-220-5	Enable	1.2 V	30 µA	27.03 °C/W	Positive	40 mA	TO-220-5	80 dB	65 dB	5.5 V	125 °C	-40 °C	3 A	1	Through Hole	Over Current, Over Temperature, Short Circuit	0.5 V
Texas Instruments LP38843S-1.5 Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Enable	1.5 V	30 µA	27.03 °C/W	Positive	40 mA	TO-263 (DDPAK-5)	80 dB	65 dB	5.5 V	125 °C	-40 °C	3 A	1	Surface Mount	Over Current, Over Temperature, Short Circuit	0.5 V

Description

General part information

LP38843 Series

The LP38843 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:210 mV (typ) at 3A load current.

Documents

Technical documentation and resources

LP38843 3A Ultra Low Dropout Linear Reg Stable w/Ceramic Output Cap datasheet (Rev. C)

Data sheet