目录6Bi嘉泰姆

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

 6Bi嘉泰姆

一,产品概述(General Description)   6Bi嘉泰姆

    The CXSD61036 is high efficiency synchronous,PWM step-down6Bi嘉泰姆
DC/DC converters working under an input voltage6Bi嘉泰姆
range of 2.5V to 5.5V. This feature makes the CXSD61036 suitable6Bi嘉泰姆
for single Li-lon battery-powered applications.100% duty cycle6Bi嘉泰姆
capability extends battery life in portable devices, while the quiescent6Bi嘉泰姆
current is 200 A with no load, and drops to < 1 A in shutdown.6Bi嘉泰姆
       The internal synchronous switch is  desired to increase efficiency6Bi嘉泰姆
without an external Schottky diode. The 1.4 MHz fixed switching6Bi嘉泰姆
frequency allows the using of tiny,low profile inductors and ceramic6Bi嘉泰姆
capacitors,which minimized overall solution footprint6Bi嘉泰姆
        The CXSD61036 converters are available in the industry standard6Bi嘉泰姆
SOT-23-5 power packages (or upon request)6Bi嘉泰姆
二.产品特点(Features)6Bi嘉泰姆

1.)Up to 95% Efficiency6Bi嘉泰姆
2.)Current mode operation for excellent line and load6Bi嘉泰姆
     transient response6Bi嘉泰姆
3)Low quiescent current: 230 UA6Bi嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.356Bi嘉泰姆
5)Output voltage 5.5V 0.6V6Bi嘉泰姆
6)Automatic PWM/PFM mode switching6Bi嘉泰姆
7)No Schottky diode required6Bi嘉泰姆
8)1.4MHz fixed frequency switching6Bi嘉泰姆
9)Short-Circuit protection6Bi嘉泰姆
10)Shutdown quiescent current: < 1 UA6Bi嘉泰姆
11)Low profile SOT-23-5 package (lead-free6Bi嘉泰姆
12)packaging is now available)6Bi嘉泰姆
三,应用范围 (Applications)6Bi嘉泰姆
Digital cameras and MP36Bi嘉泰姆
Palmtop computers / PDAs6Bi嘉泰姆
Cellular phones6Bi嘉泰姆
Wireless handsets and DSL modems6Bi嘉泰姆
PC cards6Bi嘉泰姆
Portable media players6Bi嘉泰姆
四.下载产品资料PDF文档6Bi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！6Bi嘉泰姆

 6Bi嘉泰姆

五,产品封装图 (Package)6Bi嘉泰姆

6Bi嘉泰姆

六.电路原理图6Bi嘉泰姆

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七,功能概述6Bi嘉泰姆

INDUCTOR SELECTION6Bi嘉泰姆

For most applications, the value of the inductor will fall in the range of 1μH to 4.7μH. Its value is6Bi嘉泰姆
chosen based on the desired ripple current. Large value inductors lower ripple current and small6Bi嘉泰姆
value inductors result in higher ripple currents. Higher VIN or VOUT also increases the ripple6Bi嘉泰姆

current as shown in equation 1. A reasonable starting point for setting ripple current is
IL =240mA (40% of 600mA).6Bi嘉泰姆
The DC current rating of the inductor should be at least equal to the maximum load current plus6Bi嘉泰姆
half the ripple current to prevent core saturation. Thus, a 720mA rated inductor should be6Bi嘉泰姆
enough for most applications (600mA + 120mA). For better efficiency, choose a low DC-resistance6Bi嘉泰姆
inductor.6Bi嘉泰姆
Different core materials and shapes will change the size/current and price/current relationship of6Bi嘉泰姆
an inductor. Toroid or shielded pot cores in ferrite or permalloy materials are small and don’t6Bi嘉泰姆
radiate much energy, but generally cost more than powdered iron core inductors with similar6Bi嘉泰姆
electrical characteristics. The choice of which style inductor to use often depends more on the6Bi嘉泰姆

price vs size requirements and any radiated field/EMI requirements than on what the CXSD610366Bi嘉泰姆

requires to operate. Table 1 shows some typical surface mount inductors that work well in6Bi嘉泰姆
八,相关产品                 更多同类产品.......6Bi嘉泰姆

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