目录eIk嘉泰姆

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

 eIk嘉泰姆

一,产品概述(General Description)   eIk嘉泰姆

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

1.)Up to 95% EfficiencyeIk嘉泰姆
2.)Current mode operation for excellent line and loadeIk嘉泰姆
     transient responseeIk嘉泰姆
3)Low quiescent current: 230 UAeIk嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35eIk嘉泰姆
5)Output voltage 5.5V 0.6VeIk嘉泰姆
6)Automatic PWM/PFM mode switchingeIk嘉泰姆
7)No Schottky diode requiredeIk嘉泰姆
8)1.4MHz fixed frequency switchingeIk嘉泰姆
9)Short-Circuit protectioneIk嘉泰姆
10)Shutdown quiescent current: < 1 UAeIk嘉泰姆
11)Low profile SOT-23-5 package (lead-freeeIk嘉泰姆
12)packaging is now available)eIk嘉泰姆
三,应用范围 (Applications)eIk嘉泰姆
Digital cameras and MP3eIk嘉泰姆
Palmtop computers / PDAseIk嘉泰姆
Cellular phoneseIk嘉泰姆
Wireless handsets and DSL modemseIk嘉泰姆
PC cardseIk嘉泰姆
Portable media playerseIk嘉泰姆
四.下载产品资料PDF文档eIk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！eIk嘉泰姆

 eIk嘉泰姆

五,产品封装图 (Package)eIk嘉泰姆

eIk嘉泰姆

六.电路原理图eIk嘉泰姆

eIk嘉泰姆
eIk嘉泰姆
七,功能概述eIk嘉泰姆

INDUCTOR SELECTIONeIk嘉泰姆

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

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

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036eIk嘉泰姆

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

共有条评论 用户名: 密码: 验证码: 匿名发表