RT9182 RT9011 RT9193 XC6221 RT9167 XC9216 XC6219 XC6219 XC6209 XC6206 RT9166 XC6201 RT9013

PT5108是一款應(yīng)用于無線設(shè)備和便攜式設(shè)備的高性能小尺寸低壓差線性穩(wěn)壓器，使用1uF+/-30%的陶瓷電容或膽電容做輸出電容，

PT5108可節(jié)省電路板空間，適用于電池供電的系統(tǒng)，

PT5108具有超低噪聲、高紋波抑制比、超低壓差及低功耗的特點，

PT5108在0.5V壓差下1KHz的電源紋波抑制比可達(dá)75dB。

PT5108在2.5至5.5V工作電壓下可提供300mA的輸出電流，啟動時間小于200uS，

PT5108在關(guān)斷模式下僅消耗電流0.1uA，內(nèi)部集成過熱和過流保護(hù)。

PT5108概述

The PT5108 is a low-dropout voltage regulator designed for portable applications that require both low noise performance and board space. Its PSRR at 1kHz is better than 70dB. The PT 5108’s is ideal for battery powered systems for delivering low dropout voltage and low quiescent current. An optional external bypass capacitor reduces the output noise and increases PSRR.

The device can be used for mobile phones and similar battery powered wireless applications. It provides up to 500mA, from a 2.5V to 5.5V input. The PT5108 consumes less than 0.1μA in shutdown mode and has fast turn-on time less than 150μs. The PT5108 is available in a 5 pin SOT-23 package. Selected performances are specified for ? 40°C to + 85°C temperature range. The output voltage is available in the range of 1.5~2.0V, 2.5~3.3V, 4.7~5.0V.

PT5108特性

2.5V to 5.5V input range

72dB PSRR @1kHz, Vin = Vout + 1V

< 0.1uA quiescent current at shutdown mode

Fast turn on time: 150us (typical)

290mV maximum dropout voltage with 400mA load

Thermal shutdown and short-circuit current limit

1.5V, 1.6V, 1.7V, 1.8V, 1.9V, 2.0V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 4.7V, 4.8V, 4.9V and 5.0V typical output standard

Miniature SOT-23-5 package

PT5108應(yīng)用領(lǐng)域

CDMA/GSM mobile phones

Cordless telephones

WLAN and bluetooth appliances

PDAs/MP3

Battery powered portable devices

相關(guān)文章:

LDO的典型應(yīng)用

LDO低壓差線性穩(wěn)壓器基本原理及應(yīng)用

LDO線性穩(wěn)壓器拓?fù)浣Y(jié)構(gòu)及分類

XC6206讀卡器3.6V@600mA的電源IC