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发布者:微桥PT5109 发布时间:2010-12-4 阅读:3019次    关键字: PT5109-High-PSRR 300mA LDO(微桥)
PT5109-High-PSRR 300mA LDO(微桥)


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GENERAL DESCRIPTION

The PT5109 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 60dB. The PT 5109’s is ideal for battery powered systems for delivering low dropout voltage and low quiescent current. The device can be used for mobile phones and similar battery powered wireless applications. It provides up to 300mA, from a 2.5V to 8V input. The PT5109 consumes less than 0.1礎 in shutdown mode. The PT5109 is available in a 5 SOT-23 packages. Selected performances are specified for − 40癈 to + 85癈 temperature range. The output voltage is available in the range of 1.8V, 2.5V, 2.8V, 3.0V, 3.3V

 

FEATURES

l          2.5V to 8V input range

l          60dB PSRR @1kHz, Vin = Vout + 1V

l          < 1uA quiescent current at shutdown mode

l          330mV maximum dropout voltage with 300mA load

l          Thermal shutdown and short-circuit current limit

l          1.8V, 2.5V, 2.8V, 3.0V, 3.3V typical output standard

l          5 pin SOT23 packages

 

APPLICATIONS

l          CDMA/GSM mobile phones

l          Cordless telephones

l          WLAN and bluetooth appliances

l          PDAs/MP3   Battery powered portable devices
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