Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | LP3881ET-1.5/NOPB | LP3881 Series |
|---|---|---|
| Control Features | Enable | Enable |
| Current - Output | 800 mA | 800 mA |
| Current - Quiescent (Iq) | 30 µA | 30 µA |
| Current - Supply (Max) [Max] | 8 mA | 8 mA |
| Mounting Type | Through Hole | 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-220-5 Formed Leads | TO-263BA, D2PAK (5 Leads + Tab), TO-263-6, TO-220-5 Formed Leads, 8-PowerSOIC |
| Package / Case | - | 3.9 mm |
| Package / Case | - | 0.154 in |
| Protection Features | Under Voltage Lockout (UVLO), Over Temperature, Over Current, Short Circuit | Under Voltage Lockout (UVLO), Over Temperature, Over Current, Short Circuit |
| PSRR [Max] | 80 dB | 80 dB |
| PSRR [Min] | 65 dB | 65 dB |
| Supplier Device Package | TO-220-5 | TO-263 (DDPAK-5), TO-220-5, 8-SO PowerPad |
| Voltage - Input (Max) [Max] | 5.5 V | 5.5 V |
| Voltage - Output (Min/Fixed) | 1.5 V | 1.2 - 1.8 V |
| Voltage Dropout (Max) | - | 0.19 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
LP3881 Series
800-mA, low-VIN (1.291-V), ultra-low-dropout voltage regulator with enable
| Part | PSRR [Max] | PSRR [Min] | Control Features | Voltage - Output (Min/Fixed) | Output Configuration | Current - Supply (Max) [Max] | Voltage - Input (Max) [Max] | Current - Output | Mounting Type | Current - Quiescent (Iq) | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Output Type | Number of Regulators | Package / Case | Protection Features | Voltage Dropout (Max) [Max] | Package / Case [custom] | Package / Case [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments LP3881ES-1.2/NOPBThe LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.
Ground Pin Current:3 mA (typ) at full load.
Shutdown Current:60 nA (typ) when S/D pin is low.
Precision Output Voltage:1.5% room temperature accuracy.
The LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.
Ground Pin Current:3 mA (typ) at full load.
Shutdown Current:60 nA (typ) when S/D pin is low.
Precision Output Voltage:1.5% room temperature accuracy. | 80 dB | 65 dB | Enable | 1.2 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | TO-263 (DDPAK-5) | 27.03 °C/W | 1 | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881ET-1.2/NOPBLinear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-220-5 | 80 dB | 65 dB | Enable | 1.2 V | Positive | 8 mA | 5.5 V | 800 mA | Through Hole | 30 µA | 125 °C | -40 °C | TO-220-5 | 27.03 °C/W | 1 | TO-220-5 Formed Leads | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881EMR-1.2/NOPBLinear Voltage Regulator IC Positive Fixed 1 Output 800mA 8-SO PowerPad | 80 dB | 65 dB | Enable | 1.2 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | 8-SO PowerPad | 27.03 °C/W | 1 | 8-PowerSOIC | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | 0.19 V | 3.9 mm | 0.154 in |
Texas Instruments LP3881ES-1.8Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-263 (DDPAK-5) | 80 dB | 65 dB | Enable | 1.8 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | TO-263 (DDPAK-5) | 27.03 °C/W | 1 | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881ET-1.5/NOPBLinear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-220-5 | 80 dB | 65 dB | Enable | 1.5 V | Positive | 8 mA | 5.5 V | 800 mA | Through Hole | 30 µA | 125 °C | -40 °C | TO-220-5 | 27.03 °C/W | 1 | TO-220-5 Formed Leads | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881EMR-1.8/NOPBLinear Voltage Regulator IC Positive Fixed 1 Output 800mA 8-SO PowerPad | 80 dB | 65 dB | Enable | 1.8 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | 8-SO PowerPad | 27.03 °C/W | 1 | 8-PowerSOIC | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | 0.19 V | 3.9 mm | 0.154 in |
Texas Instruments LP3881EMRX-1.8Linear Voltage Regulator IC Positive Fixed 1 Output 800mA 8-SO PowerPad | 80 dB | 65 dB | Enable | 1.8 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | 8-SO PowerPad | 27.03 °C/W | 1 | 8-PowerSOIC | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | 0.19 V | 3.9 mm | 0.154 in |
Texas Instruments LP3881ESX-1.2/NOPBThe LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.
Ground Pin Current:3 mA (typ) at full load.
Shutdown Current:60 nA (typ) when S/D pin is low.
Precision Output Voltage:1.5% room temperature accuracy.
The LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.
Ground Pin Current:3 mA (typ) at full load.
Shutdown Current:60 nA (typ) when S/D pin is low.
Precision Output Voltage:1.5% room temperature accuracy. | 80 dB | 65 dB | Enable | 1.2 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | TO-263 (DDPAK-5) | 27.03 °C/W | 1 | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881EMR-1.5/NOPBLinear Voltage Regulator IC Positive Fixed 1 Output 800mA 8-SO PowerPad | 80 dB | 65 dB | Enable | 1.5 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | 8-SO PowerPad | 27.03 °C/W | 1 | 8-PowerSOIC | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | 0.19 V | 3.9 mm | 0.154 in |
Texas Instruments LP3881ET-1.8/NOPBLinear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-220-5 | 80 dB | 65 dB | Enable | 1.8 V | Positive | 8 mA | 5.5 V | 800 mA | Through Hole | 30 µA | 125 °C | -40 °C | TO-220-5 | 27.03 °C/W | 1 | TO-220-5 Formed Leads | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881ESX-1.8/NOPBThe LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.
Ground Pin Current:3 mA (typ) at full load.
Shutdown Current:60 nA (typ) when S/D pin is low.
Precision Output Voltage:1.5% room temperature accuracy.
The LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.
Ground Pin Current:3 mA (typ) at full load.
Shutdown Current:60 nA (typ) when S/D pin is low.
Precision Output Voltage:1.5% room temperature accuracy. | 80 dB | 65 dB | Enable | 1.8 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | TO-263 (DDPAK-5) | 27.03 °C/W | 1 | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881ESX-1.2Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-263 (DDPAK-5) | 80 dB | 65 dB | Enable | 1.2 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | TO-263 (DDPAK-5) | 27.03 °C/W | 1 | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881ES-1.2Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-263 (DDPAK-5) | 80 dB | 65 dB | Enable | 1.2 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | TO-263 (DDPAK-5) | 27.03 °C/W | 1 | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881ES-1.5/NOPBThe LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.
Ground Pin Current:3 mA (typ) at full load.
Shutdown Current:60 nA (typ) when S/D pin is low.
Precision Output Voltage:1.5% room temperature accuracy.
The LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.
Ground Pin Current:3 mA (typ) at full load.
Shutdown Current:60 nA (typ) when S/D pin is low.
Precision Output Voltage:1.5% room temperature accuracy. | 80 dB | 65 dB | Enable | 1.5 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | TO-263 (DDPAK-5) | 27.03 °C/W | 1 | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881EMRX-1.2/NOPBLinear Voltage Regulator IC Positive Fixed 1 Output 800mA 8-SO PowerPad | 80 dB | 65 dB | Enable | 1.2 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | 8-SO PowerPad | 27.03 °C/W | 1 | 8-PowerSOIC | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | 0.19 V | 3.9 mm | 0.154 in |
Texas Instruments LP3881ES-1.8/NOPBThe LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.
Ground Pin Current:3 mA (typ) at full load.
Shutdown Current:60 nA (typ) when S/D pin is low.
Precision Output Voltage:1.5% room temperature accuracy.
The LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.
Ground Pin Current:3 mA (typ) at full load.
Shutdown Current:60 nA (typ) when S/D pin is low.
Precision Output Voltage:1.5% room temperature accuracy. | 80 dB | 65 dB | Enable | 1.8 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | TO-263 (DDPAK-5) | 27.03 °C/W | 1 | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | |||
Texas Instruments LP3881ES-1.5Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-263 (DDPAK-5) | 80 dB | 65 dB | Enable | 1.5 V | Positive | 8 mA | 5.5 V | 800 mA | Surface Mount | 30 µA | 125 °C | -40 °C | TO-263 (DDPAK-5) | 27.03 °C/W | 1 | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) |
Description
General part information
LP3881 Series
The LP3881 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, TO-263 and SOIC-8 packages.
Dropout Voltage:75 mV (typ) @ 0.8A load current.