600Khz固定开关频率CXSU63039高效同步升压调节器集成了5A功率MOSFET可调输出电压从3V到5.5V输出过压保护

目录ryO嘉泰姆

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

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一,产品概述(General Description)         ryO嘉泰姆
   CXSU63039 is a high efficiency synchronous boost regulator that convertsryO嘉泰姆

down to 2.5V input and up to 5.5V output voltage. It adopts NMOS for theryO嘉泰姆

main switch and PMOS for the synchronous switch. It can disconnect the ryO嘉泰姆

output from input during the shutdown mode..ryO嘉泰姆

  It integrates 5A power MOSFET and can output 5V 2.5A with Li-Battery input.ryO嘉泰姆
二.产品特点(Features)ryO嘉泰姆
1.)2.5V Minimum input voltageryO嘉泰姆
2.)Adjustable output voltage from 3V to 5.5VryO嘉泰姆
3.)6A peak current limitryO嘉泰姆
4.)Input under voltage lockoutryO嘉泰姆
5.)600Khz fixed Switching FrequencyryO嘉泰姆
6.)Load disconnect during shutdownryO嘉泰姆
7.)Integrated soft-startryO嘉泰姆
8.)Output over voltage protectionryO嘉泰姆
30moJTM Power MOSFETryO嘉泰姆
Thermal ShutdownryO嘉泰姆
QFN4x4-16 PackageryO嘉泰姆
三,应用范围 (Applications)ryO嘉泰姆
1.) Handheld DevicesryO嘉泰姆
2.)Power BankryO嘉泰姆
3.)All Single Cell Li or Dual Cell Battery Operated ProductsryO嘉泰姆
四,产品封装图 (Package)ryO嘉泰姆
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五,电路原理图ryO嘉泰姆
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六.产品PDF文档ryO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！ryO嘉泰姆

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七,功能概述ryO嘉泰姆

SYNCHRONOUS RECTIFIERryO嘉泰姆
The device integrates an N-channel and a P-channel MOSFET transistor to realize aryO嘉泰姆
synchronous rectifier. Because the commonly used discrete Schottky rectifier is replaced withryO嘉泰姆
a low RDS(ON) PMOS switch, the power conversion efficiency reaches 96%. To avoidryO嘉泰姆
ground shift due to the high currents in the NMOS switch, two separate ground pins are used.ryO嘉泰姆
The reference for all control functions is the GND pin. The source of the NMOS switch isryO嘉泰姆
connected to PGND. Both grounds must be connected on the PCB at only one point close toryO嘉泰姆
the GND pin. A special circuit is applied to disconnect the load from the input duringryO嘉泰姆
shutdown of the converter. In conventional synchronous rectifier circuits, the backgate dioderyO嘉泰姆
of the high-side PMOS is forward biased in shutdown and allows current flowing from theryO嘉泰姆
battery to the output. This device however uses a special circuit which takes the cathode ofryO嘉泰姆
the backgate diode of the high-side PMOS and disconnects it from the source when theryO嘉泰姆
regulator is not enabled (EN = low).ryO嘉泰姆
The benefit of this feature for the system design engineer is that the battery is not depletedryO嘉泰姆
during shutdown of the converter. No additional components have to be added to the designryO嘉泰姆
to make sure that the battery is disconnected from the output of the converter.ryO嘉泰姆
八,相关产品           更多同类产品........    ryO嘉泰姆

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