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目录BuU嘉泰姆

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

 BuU嘉泰姆

一,产品概述(General Description)   BuU嘉泰姆

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

1.)Up to 95% EfficiencyBuU嘉泰姆
2.)Current mode operation for excellent line and loadBuU嘉泰姆
     transient responseBuU嘉泰姆
3)Low quiescent current: 230 UABuU嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35BuU嘉泰姆
5)Output voltage 5.5V 0.6VBuU嘉泰姆
6)Automatic PWM/PFM mode switchingBuU嘉泰姆
7)No Schottky diode requiredBuU嘉泰姆
8)1.4MHz fixed frequency switchingBuU嘉泰姆
9)Short-Circuit protectionBuU嘉泰姆
10)Shutdown quiescent current: < 1 UABuU嘉泰姆
11)Low profile SOT-23-5 package (lead-freeBuU嘉泰姆
12)packaging is now available)BuU嘉泰姆
三,应用范围 (Applications)BuU嘉泰姆
Digital cameras and MP3BuU嘉泰姆
Palmtop computers / PDAsBuU嘉泰姆
Cellular phonesBuU嘉泰姆
Wireless handsets and DSL modemsBuU嘉泰姆
PC cardsBuU嘉泰姆
Portable media playersBuU嘉泰姆
四.下载产品资料PDF文档BuU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！BuU嘉泰姆

 BuU嘉泰姆

五,产品封装图 (Package)BuU嘉泰姆

BuU嘉泰姆

六.电路原理图BuU嘉泰姆

BuU嘉泰姆
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七,功能概述BuU嘉泰姆

INDUCTOR SELECTIONBuU嘉泰姆

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

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

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036BuU嘉泰姆

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

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