目录M2S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） M2S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M2S嘉泰姆

 M2S嘉泰姆

一,产品概述(General Description)      M2S嘉泰姆
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     The CXSU63034 is a highly efficient fix frequencysynchronous step-upM2S嘉泰姆
DC/DC converter. Output voltage of the device is adjustable. PowerM2S嘉泰姆
dissipation during operation is only 40μA typical and drops to less thanM2S嘉泰姆
1μA in shutdown. The 0.85V to 5V input voltage range makes the CXSU63034M2S嘉泰姆
ideally suitable for single cell Li-ion battery, single or dual AA battery voltageM2S嘉泰姆
step-up applications. Automatic PFM Mode operation increases efficiency atM2S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 andM2S嘉泰姆
output capacitors. The internal synchronous switchesenhance efficiency.M2S嘉泰姆
Anti-ringing control circuitry reduces EMI by damping the inductance effectM2S嘉泰姆
in DCM mode. The CXSU63034 is available in SOT23-6 package.M2S嘉泰姆
二.产品特点(Features)M2S嘉泰姆
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Input Voltage Operating Range: 0.85V to 5VM2S嘉泰姆
Voltage Output Range: 2.5V to 5.5VM2S嘉泰姆
Efficiency Up to 94%M2S嘉泰姆
3.3V/100mA Output at 1.0V InputM2S嘉泰姆
5V/700mA Output at 3.6V InputM2S嘉泰姆
Low Start-up Voltage: 0.85V TypicalM2S嘉泰姆
1.2MHz Constant Frequency OperationM2S嘉泰姆
Internal Synchronous RectifierM2S嘉泰姆
EMI Reduction Anti-Ring Control CircuitryM2S嘉泰姆
Low Shutdown Current: < 1.0uAM2S嘉泰姆
Over Current ProtectionM2S嘉泰姆
Over Temperature ProtectionM2S嘉泰姆
Light Load PFM Mode OperationM2S嘉泰姆
SOT23-6 PackageM2S嘉泰姆
三,应用范围 (Applications)M2S嘉泰姆
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 Li-ion Battery ChargerM2S嘉泰姆

 TYPICAL APPLICATIONS
USB AudioM2S嘉泰姆
Wireless MouseM2S嘉泰姆
Digital Still CamerasM2S嘉泰姆
MP3/MP4 PlayersM2S嘉泰姆
Portable InstrumentsM2S嘉泰姆
四.技术规格书下载（产品PDF）M2S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！M2S嘉泰姆

 M2S嘉泰姆

五,产品封装图 (Package)M2S嘉泰姆
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M2S嘉泰姆

六.电路原理图M2S嘉泰姆
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七,功能概述M2S嘉泰姆
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1)General DescriptionM2S嘉泰姆
The CXSU63034 is a synchronous step-up DC-DC converter.M2S嘉泰姆
It utilizes internal MOSFET switches to achieve highM2S嘉泰姆
efficiency over full load current range. It operates at aM2S嘉泰姆
fixed switching frequency of 1.2MHz, and uses theM2S嘉泰姆
slope compensated peak current mode pulse widthM2S嘉泰姆
modulation (PWM) architecture. The device canM2S嘉泰姆
operate with an input voltage below 1V and theM2S嘉泰姆
minimum start-up voltage is 0.85V.M2S嘉泰姆
2) Current Mode Operation M2S嘉泰姆
The CXSU63034 is based on a slope compensated peakM2S嘉泰姆
current mode PWM control topology. It operates at aM2S嘉泰姆
fixed frequency of 1.2MHz. At the beginning of eachM2S嘉泰姆
clock cycle, the main switch (NMOS) is turned on andM2S嘉泰姆
the inductor current starts to ramp. After the maximumM2S嘉泰姆
duty cycle or the sense current signal equals the errorM2S嘉泰姆
amplifier output, the main switch is turned off and theM2S嘉泰姆
synchronous switch (PMOS) is turned on. This controlM2S嘉泰姆
topology features cycle-by-cycle current limiting whichM2S嘉泰姆
can prevent the main switch from overstress and theM2S嘉泰姆
external inductor from saturating.M2S嘉泰姆
3) Synchronous Rectification M2S嘉泰姆
The CXSU63034 integrates a synchronous rectifier toM2S嘉泰姆
improve efficiency as well as to eliminate the need forM2S嘉泰姆
an external Schottky diode. The synchronous rectifier isM2S嘉泰姆
used to reduce the loss condition contributed by theM2S嘉泰姆
forward voltage of an external Schottky diode. TheM2S嘉泰姆
synchronous rectifier is realized by a P-channel MOSM2S嘉泰姆
(PMOS) with gate control circuitry that incorporatesM2S嘉泰姆
八,相关芯片选择指南           更多同类产品........    M2S嘉泰姆

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