500mA,Ultra-low noise, Small Package Ultra-Fast CMOS LDO Regulator
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LP3980S
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概述
The LP3980S is designed for portable RF and wireless applications demanding performance and space requirements. The LP3980S 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. The LP3980S also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LP3980S consumes less than 0.03µA in shutdown mode and has fast turn-on time less than 50µs. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio.
应用
◆Portable Media Players/MP3 players ◆Cellular and Smart mobile phone ◆LCD ◆DSC Sensor ◆Wireless Card
数据参数
数据参数
输出电流(mA)
500
输出电压(V)
3.3/Adj.
输入电压(V)
1.6~5.5
电源抑制比(dB)
-80
精度(%)
1
导通压差(mV/mA)
400 @ 500
静态电流(uA)
20
特点
Shutdown,High PSRR,Large current,High Accuracy
封装
SOT23-5
特征
特征
◆1.6V- 5.5V Input Voltage Range ◆Low Dropout : 240mV @ 300mA ◆500mA Output Current ◆High PSRR: -76dB at 1KHz ◆＜1uA Standby Current When Shutdown ◆Ultra-Fast Response in Line/Load transient ◆Current Limiting ◆ Thermal Shutdown Protection ◆ Available in SOT23-5 Package
