目录NZq嘉泰姆

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

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一,产品概述(General Description)   NZq嘉泰姆

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

1.)Up to 95% EfficiencyNZq嘉泰姆
2.)Current mode operation for excellent line and loadNZq嘉泰姆
     transient responseNZq嘉泰姆
3)Low quiescent current: 230 UANZq嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35NZq嘉泰姆
5)Output voltage 5.5V 0.6VNZq嘉泰姆
6)Automatic PWM/PFM mode switchingNZq嘉泰姆
7)No Schottky diode requiredNZq嘉泰姆
8)1.4MHz fixed frequency switchingNZq嘉泰姆
9)Short-Circuit protectionNZq嘉泰姆
10)Shutdown quiescent current: < 1 UANZq嘉泰姆
11)Low profile SOT-23-5 package (lead-freeNZq嘉泰姆
12)packaging is now available)NZq嘉泰姆
三,应用范围 (Applications)NZq嘉泰姆
Digital cameras and MP3NZq嘉泰姆
Palmtop computers / PDAsNZq嘉泰姆
Cellular phonesNZq嘉泰姆
Wireless handsets and DSL modemsNZq嘉泰姆
PC cardsNZq嘉泰姆
Portable media playersNZq嘉泰姆
四.下载产品资料PDF文档NZq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！NZq嘉泰姆

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五,产品封装图 (Package)NZq嘉泰姆

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六.电路原理图NZq嘉泰姆

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七,功能概述NZq嘉泰姆

INDUCTOR SELECTIONNZq嘉泰姆

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

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

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036NZq嘉泰姆

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

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