• [ 产品资料下载 ]

样品申请

目录MsB嘉泰姆

1.产品概述       2.产品特点     3.应用范围      4.技术规格书下载（产品PDF文档） MsB嘉泰姆
5.产品封装图   6.电路原理图  7.功能概述      8.相关产品MsB嘉泰姆

 MsB嘉泰姆

一,产品概述(General Description)      MsB嘉泰姆
MsB嘉泰姆
     The CXSU63034 is a highly efficient fix frequencysynchronous step-upMsB嘉泰姆
DC/DC converter. Output voltage of the device is adjustable. PowerMsB嘉泰姆
dissipation during operation is only 40μA typical and drops to less thanMsB嘉泰姆
1μA in shutdown. The 0.85V to 5V input voltage range makes the CXSU63034MsB嘉泰姆
ideally suitable for single cell Li-ion battery, single or dual AA battery voltageMsB嘉泰姆
step-up applications. Automatic PFM Mode operation increases efficiency atMsB嘉泰姆
light loads, further extend battery life. Switching frequency is internally set at 1.2MHz, design for use of small value surface mount inductor, input andMsB嘉泰姆
output capacitors. The internal synchronous switchesenhance efficiency.MsB嘉泰姆
Anti-ringing control circuitry reduces EMI by damping the inductance effectMsB嘉泰姆
in DCM mode. The CXSU63034 is available in SOT23-6 package.MsB嘉泰姆
二.产品特点(Features)MsB嘉泰姆
MsB嘉泰姆
Input Voltage Operating Range: 0.85V to 5VMsB嘉泰姆
Voltage Output Range: 2.5V to 5.5VMsB嘉泰姆
Efficiency Up to 94%MsB嘉泰姆
3.3V/100mA Output at 1.0V InputMsB嘉泰姆
5V/700mA Output at 3.6V InputMsB嘉泰姆
Low Start-up Voltage: 0.85V TypicalMsB嘉泰姆
1.2MHz Constant Frequency OperationMsB嘉泰姆
Internal Synchronous RectifierMsB嘉泰姆
EMI Reduction Anti-Ring Control CircuitryMsB嘉泰姆
Low Shutdown Current: < 1.0uAMsB嘉泰姆
Over Current ProtectionMsB嘉泰姆
Over Temperature ProtectionMsB嘉泰姆
Light Load PFM Mode OperationMsB嘉泰姆
SOT23-6 PackageMsB嘉泰姆
三,应用范围 (Applications)MsB嘉泰姆
MsB嘉泰姆

 Li-ion Battery ChargerMsB嘉泰姆

 TYPICAL APPLICATIONS
USB AudioMsB嘉泰姆
Wireless MouseMsB嘉泰姆
Digital Still CamerasMsB嘉泰姆
MP3/MP4 PlayersMsB嘉泰姆
Portable InstrumentsMsB嘉泰姆
四.技术规格书下载（产品PDF）MsB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！MsB嘉泰姆

 MsB嘉泰姆

五,产品封装图 (Package)MsB嘉泰姆
MsB嘉泰姆
MsB嘉泰姆

六.电路原理图MsB嘉泰姆
MsB嘉泰姆
MsB嘉泰姆
七,功能概述MsB嘉泰姆
MsB嘉泰姆
1)General DescriptionMsB嘉泰姆
The CXSU63034 is a synchronous step-up DC-DC converter.MsB嘉泰姆
It utilizes internal MOSFET switches to achieve highMsB嘉泰姆
efficiency over full load current range. It operates at aMsB嘉泰姆
fixed switching frequency of 1.2MHz, and uses theMsB嘉泰姆
slope compensated peak current mode pulse widthMsB嘉泰姆
modulation (PWM) architecture. The device canMsB嘉泰姆
operate with an input voltage below 1V and theMsB嘉泰姆
minimum start-up voltage is 0.85V.MsB嘉泰姆
2) Current Mode Operation MsB嘉泰姆
The CXSU63034 is based on a slope compensated peakMsB嘉泰姆
current mode PWM control topology. It operates at aMsB嘉泰姆
fixed frequency of 1.2MHz. At the beginning of eachMsB嘉泰姆
clock cycle, the main switch (NMOS) is turned on andMsB嘉泰姆
the inductor current starts to ramp. After the maximumMsB嘉泰姆
duty cycle or the sense current signal equals the errorMsB嘉泰姆
amplifier output, the main switch is turned off and theMsB嘉泰姆
synchronous switch (PMOS) is turned on. This controlMsB嘉泰姆
topology features cycle-by-cycle current limiting whichMsB嘉泰姆
can prevent the main switch from overstress and theMsB嘉泰姆
external inductor from saturating.MsB嘉泰姆
3) Synchronous Rectification MsB嘉泰姆
The CXSU63034 integrates a synchronous rectifier toMsB嘉泰姆
improve efficiency as well as to eliminate the need forMsB嘉泰姆
an external Schottky diode. The synchronous rectifier isMsB嘉泰姆
used to reduce the loss condition contributed by theMsB嘉泰姆
forward voltage of an external Schottky diode. TheMsB嘉泰姆
synchronous rectifier is realized by a P-channel MOSMsB嘉泰姆
(PMOS) with gate control circuitry that incorporatesMsB嘉泰姆
八,相关芯片选择指南           更多同类产品........    MsB嘉泰姆

MsB嘉泰姆

◀ 上一篇:1.5MHz定频开关内部同步整流器2.5V至5V输出自动PFM/PWM模式运行CXSU63033A定频升压型DC/DC变换器

返回顶部

下一篇▶:1MHz开关频率CXSU63035紧凑高效同步升压转换器与功率mosfet集成用于单电池锂离子/聚合物电池内部软启动

共有条评论 用户名: 密码: 验证码: 匿名发表