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目录KHw嘉泰姆

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

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一,产品概述(General Description)   KHw嘉泰姆

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

1.)Up to 95% EfficiencyKHw嘉泰姆
2.)Current mode operation for excellent line and loadKHw嘉泰姆
     transient responseKHw嘉泰姆
3)Low quiescent current: 230 UAKHw嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35KHw嘉泰姆
5)Output voltage 5.5V 0.6VKHw嘉泰姆
6)Automatic PWM/PFM mode switchingKHw嘉泰姆
7)No Schottky diode requiredKHw嘉泰姆
8)1.4MHz fixed frequency switchingKHw嘉泰姆
9)Short-Circuit protectionKHw嘉泰姆
10)Shutdown quiescent current: < 1 UAKHw嘉泰姆
11)Low profile SOT-23-5 package (lead-freeKHw嘉泰姆
12)packaging is now available)KHw嘉泰姆
三,应用范围 (Applications)KHw嘉泰姆
Digital cameras and MP3KHw嘉泰姆
Palmtop computers / PDAsKHw嘉泰姆
Cellular phonesKHw嘉泰姆
Wireless handsets and DSL modemsKHw嘉泰姆
PC cardsKHw嘉泰姆
Portable media playersKHw嘉泰姆
四.下载产品资料PDF文档KHw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！KHw嘉泰姆

 KHw嘉泰姆

五,产品封装图 (Package)KHw嘉泰姆

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六.电路原理图KHw嘉泰姆

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七,功能概述KHw嘉泰姆

INDUCTOR SELECTIONKHw嘉泰姆

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

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

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036KHw嘉泰姆

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

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Next▶:Cxsd61037 synchronous step-down converter, constant frequency, current pulse width modulation mode step-down converter. Purpose：For onstant frequency, current mode PWM step-down converter