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目录AxF嘉泰姆

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

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一,产品概述(General Description)   AxF嘉泰姆

    The CXSD61036 is high efficiency synchronous,PWM step-downAxF嘉泰姆
DC/DC converters working under an input voltageAxF嘉泰姆
range of 2.5V to 5.5V. This feature makes the CXSD61036 suitableAxF嘉泰姆
for single Li-lon battery-powered applications.100% duty cycleAxF嘉泰姆
capability extends battery life in portable devices, while the quiescentAxF嘉泰姆
current is 200 A with no load, and drops to < 1 A in shutdown.AxF嘉泰姆
       The internal synchronous switch is  desired to increase efficiencyAxF嘉泰姆
without an external Schottky diode. The 1.4 MHz fixed switchingAxF嘉泰姆
frequency allows the using of tiny,low profile inductors and ceramicAxF嘉泰姆
capacitors,which minimized overall solution footprintAxF嘉泰姆
        The CXSD61036 converters are available in the industry standardAxF嘉泰姆
SOT-23-5 power packages (or upon request)AxF嘉泰姆
二.产品特点(Features)AxF嘉泰姆

1.)Up to 95% EfficiencyAxF嘉泰姆
2.)Current mode operation for excellent line and loadAxF嘉泰姆
     transient responseAxF嘉泰姆
3)Low quiescent current: 230 UAAxF嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35AxF嘉泰姆
5)Output voltage 5.5V 0.6VAxF嘉泰姆
6)Automatic PWM/PFM mode switchingAxF嘉泰姆
7)No Schottky diode requiredAxF嘉泰姆
8)1.4MHz fixed frequency switchingAxF嘉泰姆
9)Short-Circuit protectionAxF嘉泰姆
10)Shutdown quiescent current: < 1 UAAxF嘉泰姆
11)Low profile SOT-23-5 package (lead-freeAxF嘉泰姆
12)packaging is now available)AxF嘉泰姆
三,应用范围 (Applications)AxF嘉泰姆
Digital cameras and MP3AxF嘉泰姆
Palmtop computers / PDAsAxF嘉泰姆
Cellular phonesAxF嘉泰姆
Wireless handsets and DSL modemsAxF嘉泰姆
PC cardsAxF嘉泰姆
Portable media playersAxF嘉泰姆
四.下载产品资料PDF文档AxF嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！AxF嘉泰姆

 AxF嘉泰姆

五,产品封装图 (Package)AxF嘉泰姆

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六.电路原理图AxF嘉泰姆

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七,功能概述AxF嘉泰姆

INDUCTOR SELECTIONAxF嘉泰姆

For most applications, the value of the inductor will fall in the range of 1μH to 4.7μH. Its value isAxF嘉泰姆
chosen based on the desired ripple current. Large value inductors lower ripple current and smallAxF嘉泰姆
value inductors result in higher ripple currents. Higher VIN or VOUT also increases the rippleAxF嘉泰姆

current as shown in equation 1. A reasonable starting point for setting ripple current is
IL =240mA (40% of 600mA).AxF嘉泰姆
The DC current rating of the inductor should be at least equal to the maximum load current plusAxF嘉泰姆
half the ripple current to prevent core saturation. Thus, a 720mA rated inductor should beAxF嘉泰姆
enough for most applications (600mA + 120mA). For better efficiency, choose a low DC-resistanceAxF嘉泰姆
inductor.AxF嘉泰姆
Different core materials and shapes will change the size/current and price/current relationship ofAxF嘉泰姆
an inductor. Toroid or shielded pot cores in ferrite or permalloy materials are small and don’tAxF嘉泰姆
radiate much energy, but generally cost more than powdered iron core inductors with similarAxF嘉泰姆
electrical characteristics. The choice of which style inductor to use often depends more on theAxF嘉泰姆

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036AxF嘉泰姆

requires to operate. Table 1 shows some typical surface mount inductors that work well inAxF嘉泰姆
八,相关产品                 更多同类产品.......AxF嘉泰姆

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