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目录SgI嘉泰姆

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

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一,产品概述(General Description)   SgI嘉泰姆

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

1.)Up to 95% EfficiencySgI嘉泰姆
2.)Current mode operation for excellent line and loadSgI嘉泰姆
     transient responseSgI嘉泰姆
3)Low quiescent current: 230 UASgI嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35SgI嘉泰姆
5)Output voltage 5.5V 0.6VSgI嘉泰姆
6)Automatic PWM/PFM mode switchingSgI嘉泰姆
7)No Schottky diode requiredSgI嘉泰姆
8)1.4MHz fixed frequency switchingSgI嘉泰姆
9)Short-Circuit protectionSgI嘉泰姆
10)Shutdown quiescent current: < 1 UASgI嘉泰姆
11)Low profile SOT-23-5 package (lead-freeSgI嘉泰姆
12)packaging is now available)SgI嘉泰姆
三,应用范围 (Applications)SgI嘉泰姆
Digital cameras and MP3SgI嘉泰姆
Palmtop computers / PDAsSgI嘉泰姆
Cellular phonesSgI嘉泰姆
Wireless handsets and DSL modemsSgI嘉泰姆
PC cardsSgI嘉泰姆
Portable media playersSgI嘉泰姆
四.下载产品资料PDF文档SgI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！SgI嘉泰姆

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五,产品封装图 (Package)SgI嘉泰姆

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六.电路原理图SgI嘉泰姆

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七,功能概述SgI嘉泰姆

INDUCTOR SELECTIONSgI嘉泰姆

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

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

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036SgI嘉泰姆

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

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