LP3881 - 0.8A 快速响应超低压降线性稳压器

LP3881是TI德州仪器公司的一款单通道LDO产品，LP3881是0.8A 快速响应超低压降线性稳压器，本站介绍了LP3881的封装应用图解、特点和优点、功能等，并给出了与LP3881相关的TI元器件型号供参考。

LP3881 - 0.8A 快速响应超低压降线性稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

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.

产品特性

Ultra Low Dropout Voltage (75 mV @ 0.8A Typ)
Low Ground Pin Current
Load Regulation of 0.04%/A
60 nA Typical Quiescent Current in Shutdown
1.5% Output Accuracy (25°C)
TO-220, TO-263 and SOIC-8 Packages
Over Temperature/Over Current Protection
−40°C to +125°C Junction Temperature Range

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