深圳市科瑞芯电子有限公司

微源半导体 LP3983HAB5F SOT23-5 600mA、超低噪声、小封装、超快CMOS LDO稳压器

General Description

The LP3983HAB5F is designed for portable RF and wireless applications with demanding performance and space requirements. 

The LP3983HAB5F performance is optimized for battery-powered systems to deliver ultra-low noise and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life. 

LP3983HAB5F also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices.

The LP3983H consumes less than 0.1μA in shutdown mode and has fast turn-on time less than 50μs. 

The other features include ultra-low dropout voltage, high feedback accuracy, current limiting protection, and high ripple rejection ratio. 

It is available in the 5-lead of SOT23-5 andSOT89-5 packages.

Features
◆ Ultra-Low-Noise for RF Application
◆ 2.5V- 6V Input Voltage Range
◆ Low Dropout : 200mV @ 300mA
◆ High PSSR:-70dB at 1KHz
◆ < 0.01uA Standby Current When Shutdown
◆ TTL-Logic-Controlled Shutdown Input
◆ Custom Voltage Available
◆ Ultra-Fast Response in Line/Load Transient
◆ Quick Start-Up (Typically 50us)
◆ Current Limiting and Thermal Shutdown Protection

Applications

◆ Portable Media Players/MP3 players

◆ Cellular and Smart mobile phone

◆ LCD/ DSC Sensor

◆ Wireless Card

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