目录H1Q嘉泰姆

1.产品概述                       2.产品特点H1Q嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 H1Q嘉泰姆
5.产品封装图                     6.电路原理图                   H1Q嘉泰姆
7.功能概述                        8.相关产品H1Q嘉泰姆

 H1Q嘉泰姆

一,产品概述(General Description)   H1Q嘉泰姆

    The CXSD61036 is high efficiency synchronous,PWM step-downH1Q嘉泰姆
DC/DC converters working under an input voltageH1Q嘉泰姆
range of 2.5V to 5.5V. This feature makes the CXSD61036 suitableH1Q嘉泰姆
for single Li-lon battery-powered applications.100% duty cycleH1Q嘉泰姆
capability extends battery life in portable devices, while the quiescentH1Q嘉泰姆
current is 200 A with no load, and drops to < 1 A in shutdown.H1Q嘉泰姆
       The internal synchronous switch is  desired to increase efficiencyH1Q嘉泰姆
without an external Schottky diode. The 1.4 MHz fixed switchingH1Q嘉泰姆
frequency allows the using of tiny,low profile inductors and ceramicH1Q嘉泰姆
capacitors,which minimized overall solution footprintH1Q嘉泰姆
        The CXSD61036 converters are available in the industry standardH1Q嘉泰姆
SOT-23-5 power packages (or upon request)H1Q嘉泰姆
二.产品特点(Features)H1Q嘉泰姆

1.)Up to 95% EfficiencyH1Q嘉泰姆
2.)Current mode operation for excellent line and loadH1Q嘉泰姆
     transient responseH1Q嘉泰姆
3)Low quiescent current: 230 UAH1Q嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35H1Q嘉泰姆
5)Output voltage 5.5V 0.6VH1Q嘉泰姆
6)Automatic PWM/PFM mode switchingH1Q嘉泰姆
7)No Schottky diode requiredH1Q嘉泰姆
8)1.4MHz fixed frequency switchingH1Q嘉泰姆
9)Short-Circuit protectionH1Q嘉泰姆
10)Shutdown quiescent current: < 1 UAH1Q嘉泰姆
11)Low profile SOT-23-5 package (lead-freeH1Q嘉泰姆
12)packaging is now available)H1Q嘉泰姆
三,应用范围 (Applications)H1Q嘉泰姆
Digital cameras and MP3H1Q嘉泰姆
Palmtop computers / PDAsH1Q嘉泰姆
Cellular phonesH1Q嘉泰姆
Wireless handsets and DSL modemsH1Q嘉泰姆
PC cardsH1Q嘉泰姆
Portable media playersH1Q嘉泰姆
四.下载产品资料PDF文档H1Q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！H1Q嘉泰姆

 H1Q嘉泰姆

五,产品封装图 (Package)H1Q嘉泰姆

H1Q嘉泰姆

六.电路原理图H1Q嘉泰姆

H1Q嘉泰姆
H1Q嘉泰姆
七,功能概述H1Q嘉泰姆

INDUCTOR SELECTIONH1Q嘉泰姆

For most applications, the value of the inductor will fall in the range of 1μH to 4.7μH. Its value isH1Q嘉泰姆
chosen based on the desired ripple current. Large value inductors lower ripple current and smallH1Q嘉泰姆
value inductors result in higher ripple currents. Higher VIN or VOUT also increases the rippleH1Q嘉泰姆

current as shown in equation 1. A reasonable starting point for setting ripple current is
IL =240mA (40% of 600mA).H1Q嘉泰姆
The DC current rating of the inductor should be at least equal to the maximum load current plusH1Q嘉泰姆
half the ripple current to prevent core saturation. Thus, a 720mA rated inductor should beH1Q嘉泰姆
enough for most applications (600mA + 120mA). For better efficiency, choose a low DC-resistanceH1Q嘉泰姆
inductor.H1Q嘉泰姆
Different core materials and shapes will change the size/current and price/current relationship ofH1Q嘉泰姆
an inductor. Toroid or shielded pot cores in ferrite or permalloy materials are small and don’tH1Q嘉泰姆
radiate much energy, but generally cost more than powdered iron core inductors with similarH1Q嘉泰姆
electrical characteristics. The choice of which style inductor to use often depends more on theH1Q嘉泰姆

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036H1Q嘉泰姆

requires to operate. Table 1 shows some typical surface mount inductors that work well inH1Q嘉泰姆
八,相关产品                 更多同类产品.......H1Q嘉泰姆

共有条评论 用户名: 密码: 验证码: 匿名发表