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目录QzF嘉泰姆

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

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一,产品概述(General Description)   QzF嘉泰姆

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

1.)Up to 95% EfficiencyQzF嘉泰姆
2.)Current mode operation for excellent line and loadQzF嘉泰姆
     transient responseQzF嘉泰姆
3)Low quiescent current: 230 UAQzF嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35QzF嘉泰姆
5)Output voltage 5.5V 0.6VQzF嘉泰姆
6)Automatic PWM/PFM mode switchingQzF嘉泰姆
7)No Schottky diode requiredQzF嘉泰姆
8)1.4MHz fixed frequency switchingQzF嘉泰姆
9)Short-Circuit protectionQzF嘉泰姆
10)Shutdown quiescent current: < 1 UAQzF嘉泰姆
11)Low profile SOT-23-5 package (lead-freeQzF嘉泰姆
12)packaging is now available)QzF嘉泰姆
三,应用范围 (Applications)QzF嘉泰姆
Digital cameras and MP3QzF嘉泰姆
Palmtop computers / PDAsQzF嘉泰姆
Cellular phonesQzF嘉泰姆
Wireless handsets and DSL modemsQzF嘉泰姆
PC cardsQzF嘉泰姆
Portable media playersQzF嘉泰姆
四.下载产品资料PDF文档QzF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！QzF嘉泰姆

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五,产品封装图 (Package)QzF嘉泰姆

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六.电路原理图QzF嘉泰姆

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七,功能概述QzF嘉泰姆

INDUCTOR SELECTIONQzF嘉泰姆

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

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

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036QzF嘉泰姆

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

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