LP3873 - 3A 快速超低压降线性稳压器

LP3873是TI德州仪器公司的一款单通道LDO产品，LP3873是3A 快速超低压降线性稳压器，本站介绍了LP3873的封装应用图解、特点和优点、功能等，并给出了与LP3873相关的TI元器件型号供参考。

LP3873 - 3A 快速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 LP3873/LP3876 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. Wide range of preset output voltage options are available. These ultra low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3873/LP3876 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3873/LP3876 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current.

Ground Pin Current: Typically 6mA at 3A load current.

Shutdown Mode: Typically 1µA quiescent current when the shutdown pin is pulled low.

Error Flag:Error flag goes low when the output voltage drops 10% below nominal value.

SENSE: Sense pin improves regulation at remote loads.

Precision Output Voltage: Multiple output voltage options are available ranging from 1.8V to 5.0V with an ensured accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

产品特性

Ultra Low Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.08%
1µA Quiescent Current in Shutdown Mode
Ensured Output Current of 3A DC
Available in DDPAK/TO-263 and TO-220 Packages
Output Voltage Accuracy ± 1.5%
Error Flag Indicates Output Status
Sense Option Improves Load Regulation
Minimum Output Capacitor Requirements
Overtemperature/overcurrent Protection
−40°C to +125°C Junction Temperature Range

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