LP3881 Series
800-mA, low-VIN (1.291-V), ultra-low-dropout voltage regulator with enable
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
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/NOPB | 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/NOPB | 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/NOPB | 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 | 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/NOPB | 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/NOPB | 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-1.8 | 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/NOPB | 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/NOPB | 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/NOPB | 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/NOPB | 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-1.2 | 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-1.2 | 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/NOPB | 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/NOPB | 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/NOPB | 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-1.5 | 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) |
Key Features
• Ultra Low Dropout Voltage (75 mV @ 0.8A Typ)Low Ground Pin CurrentLoad Regulation of 0.04%/A60 nA Typical Quiescent Current in Shutdown1.5% Output Accuracy (25°C)TO-220, TO-263 and SOIC-8 PackagesOver Temperature/Over Current Protection−40°C to +125°C Junction Temperature RangeAll trademarks are the property of their respective owners.Ultra Low Dropout Voltage (75 mV @ 0.8A Typ)Low Ground Pin CurrentLoad Regulation of 0.04%/A60 nA Typical Quiescent Current in Shutdown1.5% Output Accuracy (25°C)TO-220, TO-263 and SOIC-8 PackagesOver Temperature/Over Current Protection−40°C to +125°C Junction Temperature RangeAll trademarks are the property of their respective owners.
Description
AI
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.
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.