目录j9g嘉泰姆

1.产品概述                       2.产品特点j9g嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 j9g嘉泰姆
5.产品封装图                     6.电路原理图                   j9g嘉泰姆
7.功能概述                        8.相关产品j9g嘉泰姆

一,产品概述(General Description)         j9g嘉泰姆

   The CXLD64008 series are highly accurate, low noise,LDO Voltage Regulators that are capable of providing an output current that is in excess of 1A with a maximum dropout voltage of 1.3V at 1A （ CXLD64008A33） .This series contains four fixed output voltages of 1.2V, 1.8V, 2.5V and 3.3V that have no minimum load requirement to maintain regulation.On chip trimming adjusts the reference/output voltage to within ±2% accuracy.Internal protection features consist of output current limiting, safe operating area compensation,and thermal shutdown. j9g嘉泰姆

  The CXLD64008series can operate with up to 18V input. Devices are available in SOT223.j9g嘉泰姆

二.产品特点(Features)j9g嘉泰姆

Output Current in Excess of 1Aj9g嘉泰姆
1.)Dropout Voltage:80mV@ IOUT =100mAj9g嘉泰姆
（CXLD64008A33）j9g嘉泰姆
2.)Operating Voltage Range: 2.5V～18Vj9g嘉泰姆
3.)Highly Accuracy: ±2％j9g嘉泰姆
4.)Adjustable Output Voltage Optionj9g嘉泰姆
5.)Standby Current: 52uA（TYP.）j9g嘉泰姆
6.)High Ripple Rejection: 70dB@1KHz（CXLD64008A33）j9g嘉泰姆
7.)Line Regulation: 2mV（TYP.）j9g嘉泰姆
8.)Temperature Stability≤0.5%j9g嘉泰姆
9.)Thermal Shutdown Protection：160℃j9g嘉泰姆
10.)Packages:SOT223 ,SOT89-3,TO252-2L，SOT23-3j9g嘉泰姆
三,应用范围 (Applications)j9g嘉泰姆

Consumer and Industrial Equipment Point ofj9g嘉泰姆
Regulationj9g嘉泰姆
Switching Power Supply Post Regulationj9g嘉泰姆
Hard Drive Controllersj9g嘉泰姆
Battery Chargersj9g嘉泰姆
四.下载产品资料PDF文档 j9g嘉泰姆

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五,产品封装图 (Package)j9g嘉泰姆

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六.电路原理图j9g嘉泰姆

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七,功能概述j9g嘉泰姆

Applications Informationj9g嘉泰姆
1. Input Bypass Capacitorj9g嘉泰姆
An input capacitor is recommended. A 10uF tantalum on the input is a suitable input bypassing for almost all applications.j9g嘉泰姆
2. Output Capacitorj9g嘉泰姆
The output capacitor is critical in maintaining regulator stability, and must meet the required conditions for both minimum amount of capacitance and ESR (Equivalent Series Resistance).The minimum output capacitance required by the CXLD64008 is 10μF,if a tantalum capacitor is used. Any increase of the output capacitance will merely improve the loop stability and transient response. The ESR of the output capacitor should be less than 0.5Ω .j9g嘉泰姆
3. Load Regulationj9g嘉泰姆
The CXLD64008 regulates the voltage that appears between its output and ground pins, or between its output and adjust pins. In some cases, line resistances can introduce errors to the voltage across the load. To obtain the best load regulation, a few precautions are needed. Figure1, shows a typical application using a fixed output regulator. The Rt1 and Rt2 are the line resistances. It is obvious that the VLOAD is less than the VOUT by the sum ofj9g嘉泰姆
the voltage drops along the line resistances. In this case, the load regulation seen at the RLOAD would be degraded from the datasheet specification. To improve this , the load should be tied directly to the output terminal on the positive side and directly tied to the ground terminal on the negative side.j9g嘉泰姆
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