目录F0G嘉泰姆

1.产品概述                       2.产品特点F0G嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 F0G嘉泰姆
5.产品封装图                     6.电路原理图                   F0G嘉泰姆
7.功能概述                        8.相关产品F0G嘉泰姆

 F0G嘉泰姆

一,产品概述(General Description)   F0G嘉泰姆

    The CXSD61036 is high efficiency synchronous,PWM step-downF0G嘉泰姆
DC/DC converters working under an input voltageF0G嘉泰姆
range of 2.5V to 5.5V. This feature makes the CXSD61036 suitableF0G嘉泰姆
for single Li-lon battery-powered applications.100% duty cycleF0G嘉泰姆
capability extends battery life in portable devices, while the quiescentF0G嘉泰姆
current is 200 A with no load, and drops to < 1 A in shutdown.F0G嘉泰姆
       The internal synchronous switch is  desired to increase efficiencyF0G嘉泰姆
without an external Schottky diode. The 1.4 MHz fixed switchingF0G嘉泰姆
frequency allows the using of tiny,low profile inductors and ceramicF0G嘉泰姆
capacitors,which minimized overall solution footprintF0G嘉泰姆
        The CXSD61036 converters are available in the industry standardF0G嘉泰姆
SOT-23-5 power packages (or upon request)F0G嘉泰姆
二.产品特点(Features)F0G嘉泰姆

1.)Up to 95% EfficiencyF0G嘉泰姆
2.)Current mode operation for excellent line and loadF0G嘉泰姆
     transient responseF0G嘉泰姆
3)Low quiescent current: 230 UAF0G嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35F0G嘉泰姆
5)Output voltage 5.5V 0.6VF0G嘉泰姆
6)Automatic PWM/PFM mode switchingF0G嘉泰姆
7)No Schottky diode requiredF0G嘉泰姆
8)1.4MHz fixed frequency switchingF0G嘉泰姆
9)Short-Circuit protectionF0G嘉泰姆
10)Shutdown quiescent current: < 1 UAF0G嘉泰姆
11)Low profile SOT-23-5 package (lead-freeF0G嘉泰姆
12)packaging is now available)F0G嘉泰姆
三,应用范围 (Applications)F0G嘉泰姆
Digital cameras and MP3F0G嘉泰姆
Palmtop computers / PDAsF0G嘉泰姆
Cellular phonesF0G嘉泰姆
Wireless handsets and DSL modemsF0G嘉泰姆
PC cardsF0G嘉泰姆
Portable media playersF0G嘉泰姆
四.下载产品资料PDF文档F0G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！F0G嘉泰姆

 F0G嘉泰姆

五,产品封装图 (Package)F0G嘉泰姆

F0G嘉泰姆

六.电路原理图F0G嘉泰姆

F0G嘉泰姆
F0G嘉泰姆
七,功能概述F0G嘉泰姆

INDUCTOR SELECTIONF0G嘉泰姆

For most applications, the value of the inductor will fall in the range of 1μH to 4.7μH. Its value isF0G嘉泰姆
chosen based on the desired ripple current. Large value inductors lower ripple current and smallF0G嘉泰姆
value inductors result in higher ripple currents. Higher VIN or VOUT also increases the rippleF0G嘉泰姆

current as shown in equation 1. A reasonable starting point for setting ripple current is
IL =240mA (40% of 600mA).F0G嘉泰姆
The DC current rating of the inductor should be at least equal to the maximum load current plusF0G嘉泰姆
half the ripple current to prevent core saturation. Thus, a 720mA rated inductor should beF0G嘉泰姆
enough for most applications (600mA + 120mA). For better efficiency, choose a low DC-resistanceF0G嘉泰姆
inductor.F0G嘉泰姆
Different core materials and shapes will change the size/current and price/current relationship ofF0G嘉泰姆
an inductor. Toroid or shielded pot cores in ferrite or permalloy materials are small and don’tF0G嘉泰姆
radiate much energy, but generally cost more than powdered iron core inductors with similarF0G嘉泰姆
electrical characteristics. The choice of which style inductor to use often depends more on theF0G嘉泰姆

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036F0G嘉泰姆

requires to operate. Table 1 shows some typical surface mount inductors that work well inF0G嘉泰姆
八,相关产品                 更多同类产品.......F0G嘉泰姆

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