Low-Noise, High-PSRR, 600mA LDO with PGOOD IndicationCXLD64247 CMOS低噪声低漏失电压调节器输出电压精度高漏失电压低启动时间快的优点

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CXLD64247是</span>一款CMOS低漏失电压调节器，能满足超低噪声的应用。CXLD64247具有输出电压精度高，漏失电压低，启动时间快的优点。由于CXLD64247的低噪声无需外部bypass电容就可以实现，故能满足要求理想电源的RF应用。CXLD64247是针对手持和电池电源设备设计的，它的EN引脚可以与晶体管逻辑相兼容。当CXLD64247的使能使芯片处于关断状态时，输出电压几乎接近为0。CXLD64247主要包括电流限制，热关断和快速瞬态响应的功能，它还具有开漏输出的PGOOD信号，用以检测输出是否正常。CXLD64247的输出电容需采用低ESR的陶瓷电容，它采用了可以减小板子空间的2mm×2mm的TDFN-6封装。CXLD64247还提供了宽范围输出的固定版本。The CXLD64247 is an efficient CMOS low dropout (LDO) voltage regulator optimized for ultra-low-noise applications. It offers high output accuracy, low dropout voltage and fast start-up time. The CXLD64247 provides a very low noise output without a bypass capacitor, ideal for RF applications where a clean supply voltage source is required. Specifically designed for handheld and battery-powered devices, the CXLD64247 provides a TTL-logic-compatible enable pin. When the CXLD64247is disabled, power consumption drops nearly to zero. Key features include current limit, thermal shutdown and faster transient response. The CXLD64247generates an open-drain PGOOD signal to monitor the output regulation. The CXLD64247works with low-ESR ceramic capacitors. Available in 2mm × 2mm TDFN-6 package which reduces the amount of board space for power applications. The CXLD64247offers wide fixed output voltage versions.

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 ‧2.5V到5.5V的输入电压范围；wBA嘉泰姆

‧30uV（rms）的输出噪声；</p>

‧600mA时360mV的漏失电压</p>

‧无Bypass电容时1kHz的PSRR为68dBwBA嘉泰姆

‧600mA的输出电流</p>

‧2.2uF的输出电容</p>

‧优良的负载和线性瞬态响应</p>

‧具有PGOOD功能wBA嘉泰姆

‧具有热关断和电流保护功能wBA嘉泰姆

‧外部可调输出电压：0.8V~5VwBA嘉泰姆

‧关断时具有自动放电功能</p>

‧TDFN-6 2mm×2mm的封装</p>

‧符合RoHS标准，100%的无铅和无卤素</p>

2.5V to 5.5V Input Voltage RangewBA嘉泰姆

 
30μV(rms) Output NoisewBA嘉泰姆

 
360mV Dropout @ 600mAwBA嘉泰姆

 
68dB PSRR at 1kHz No Bypass CapacitorwBA嘉泰姆

 
Guaranteed 600mA Output CurrentwBA嘉泰姆

 
Stable with a 2.2μF Ceramic Output CapacitorwBA嘉泰姆

 
Excellent Load/Line TransientwBA嘉泰姆

 
Power-Good Window ComparatorwBA嘉泰姆

 
Thermal Shutdown and Current Limit ProtectionwBA嘉泰姆

 
Adjustable Output Voltage：0.8V to 5VwBA嘉泰姆

 
Auto-Discharge when ShutdownwBA嘉泰姆

 
Available in 2mm× 2mm TDFN-6 PackagewBA嘉泰姆

 
RoHS Compliant and 100% Lead (Pb)-Free Halogen-FreewBA嘉泰姆

   应用范围 返回TOPwBA嘉泰姆

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Consumer/Personal Electronics
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