CXSU63035 compact, high-efficiency, synchronous step-up converter with power MOSFETs integrated for a single-cell Li-ion/polymer battery. This converter consumes only 100uA quiescent current w

目录2ZE嘉泰姆

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

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一,产品概述(General Description)         
         The CXSU63035 is a compact, high-efficiency, synchronous step-up converter with power MOSFETs integrated for a single-cell Li-ion/polymer battery. This converter
consumes only 100uA quiescent current when no switching. When current load is light, this converter enters burst mode to obtain high efficiency. When current load is
heavy enough, it enters fixed-frequency PWM mode. It adopts peak current mode for fast transient response with internal compensation. This converter contains  cycle-by-cycle current limiting and short protection circuit. It is suitable for iPad-like computers, smart phones and portable handheld devices. The device is packed in ESOP8 package.
二</span>.产品特点(Features)
·Wide input range: 2.6-5V input, 2.0A @5V Vout
· 1MHz switching frequency
· Low RDS(ON): 110mΩ@5V NMOS and 150mΩ@5V PMOS
· Up to 93% efficiency
· Accurate Reference: 0.6V Reference
· Under-Voltage lockout Protection
  Over-Temperature Protection Short Protection
· Internal Soft Start
· 1uA Shutdown current
· RoHS Compliant and Halogen Free
· Compact package: ESOP8
三</span>,应用范围 (Applications)
IPad- like tablet computers
Smart phones
Other portable devices
四.下载产品资料PDF文档 2ZE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</span>！</span>
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五</span>,产品封装图 (Package)

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六</span>.电路原理图</span>


七</span>,功能概述2ZE嘉泰姆

UnderVoltage Lockout2ZE嘉泰姆

An under voltage lockout function prevents device start-up if the supply voltage on VBAT is lower than
approximately 2.8V. When in operation and the battery is being discharged, the device automatically enters the
shutdown mode if the voltage on VBAT drops below approximately 2.5V. This under voltage lockout function is
implemented in order to prevent the malfunctioning of the converter. 
SoftStart
When the device enables the internal start-up cycle, it starts with the first step, the precharge phase. During
precharge, the rectifying switch is turned on until the output capacitor is charged to a value close to the input
voltage. The rectifying switch current is limited in that phase. This also limits the output current under
short-circuit conditions at the output. After charging the output capacitor to the input voltage the device starts
switching.2ZE嘉泰姆

Application Information2ZE嘉泰姆

Because of the high integration in the CXSU63035, the application circuit based on this regulator IC is rather
simple. Only input capacitor CIN, output capacitor COUT, inductor L and feedback resistors (R1 and R2) need to
be selected for the targeted applications specifications.
Feedback resistor dividers R1 and R2:
Choose R1 and R2 to program the proper output voltage. To minimize the power consumption under light loads,
it is desirable to choose large resistance values for both R1 and R 2. A value of between 10k and 1M is
recommended for both resistors. If R1=200k is chosen, then R2 can be calculated to be:
R2 = (R1×0.6V)/(VOUT - 0.6V)
Input capacitor CIN:
To minimize the potential noise problem, place a typical X5R or better grade ceramic capacitor really close to
the IN and GND pins. Care should be taken to minimize the loop area formed by CIN, and IN/GND pins. In this
case a 10uF low ESR ceramic is recommended.
Output capacitor COUT:
The output capacitor is selected to handle the output ripple noise requirements. Both steady state ripple and
transient requirements must be taken into consideration when selecting this capacitor. For the best performance,
it is recommended to use X5R or better grade ceramic capacitor with 10V rating and more than two pcs 22uF
Capacitor.
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