CMOS升压开关稳压器CXSU63025由参考电压源振荡电路误差放大器相位补偿电路PWM/PFM开关控制电路组成

发布时间:2020-06-04 08:30:37 浏览次数:350 作者:oumao18 来源:嘉泰姆
摘要:CXSU63025系列是一种CMOS升压开关稳压器,主要由参考电压源、振荡电路、误差放大器、相位补偿电路、PWM/PFM开关控制电路组成。本产品采用外接低导通电阻Nch功率MOS,适用于高效率、高输出电流的应用场合
CMOS升压开关稳压器CXSU63025由参考电压源振荡电路误差放大器相位补偿电路PWM/PFM开关控制电路组成

目录

   产品概述 返回TOPIbn嘉泰姆


           The CXSU63025 series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an oscillation circuit,an error amplifier, a phase compensation circuit,a PWM/PFM switching control circuit. With an external low-ON-resistance Nch Power MOS,this product is applicable to applications requiring high efficiency and high output current. 

         The CXSU63025 series switches its operation to the PFM control circuit whose duty ratio is 15% with to the PWM/PFM switching control circuit under a light load and to prevent decline in the efficiency by IC operation current.

   产品特点 返回TOPIbn嘉泰姆


1.)Low voltage operation: Start-up is guaranteed from 0.9 VIbn嘉泰姆
    (IOUT =1 mA )Ibn嘉泰姆
2.)Duty ratio: Built-in PWM/PFM switching control circuit 15 to 78 %Ibn嘉泰姆
3.)oscillator frequency:1.0MHzIbn嘉泰姆
4.)External parts: coil, diode, capacitor, and transistorIbn嘉泰姆
5.)Output voltage range: 1.5V ~20VIbn嘉泰姆
6.)Output voltage accuracy:±2%Ibn嘉泰姆
7.)Soft start function: 2 mS.Ibn嘉泰姆
8.)PACKAGE:SOT23-5Ibn嘉泰姆

   应用范围 返回TOPIbn嘉泰姆


MP3 players, digital audio playersIbn嘉泰姆
Digital cameras, GPS, wireless transceiverIbn嘉泰姆
Portable devicesIbn嘉泰姆

   技术规格书(产品PDF) 返回TOP Ibn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Ibn嘉泰姆

 QQ截图20160419174301.jpgIbn嘉泰姆

产品封装图 返回TOPIbn嘉泰姆


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Pin Number Pin Name Function
SOT23-5
1    
FB Feed Back voltage pin  
2 VDD IC power supply pin
3 CE Shutdown pin
4 GND GND pin
5 EXT External transistor connection pin

电路原理图 返回TOPIbn嘉泰姆


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