带线性调节器CXSD62109的单Buck PWM控制器是一种单相恒导通同步的带线性调节器它驱动N通道mosfet
发表时间:2020-04-23
浏览次数:61

目录

1.产品概述       2.产品特点     UKJ嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)UKJ嘉泰姆

5.产品封装       6.电路原理图  UKJ嘉泰姆

7.相关产品UKJ嘉泰姆

   产品概述 返回TOPUKJ嘉泰姆


The CXSD62109 is a single-phase, constant on-time, synchronous PWM controller with linear regulator, which drives N-channel MOSFETs. The CXSD62109 steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. The CXSD62109 provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), the CXSD62109 provides very high efficiency over light to heavy loads with loadingmodulated switching frequencies. In PWM Mode, the converter works nearly at constant frequency for low-noise requirements. The CXSD62109 is equipped with accurate positive current limit, output under-voltage, and output over-voltage protections, perfect for various applications. The PowerOn-Reset function monitors the voltage on VCC and PVCC to prevent wrong operation during power-on. The CXSD62109 has a 1.5ms digital soft start and built-in an integrated output discharge device for soft stop. An internal soft-start ramps up the output voltage with programmable slew rate to reduce the start-up current. A soft-stop function actively discharges the output capacitors. The integrated linear regulator could drive an external NChannel MOSFET and provides an adjustable output by using an external resistive divider. It is easy to be used because there is independent enable function and power OK indicator at linear regulator part. Moreover, linear regulator has soft start, under-voltage and overtemperature protection to become the great second output voltage of the CXSD62109 The ACXSD62109is available in 16pin TQFN packages respectively

   产品特点 返回TOPUKJ嘉泰姆


PWM Controller UKJ嘉泰姆

· Adjustable Output Voltage from +0.75V to +3.3V UKJ嘉泰姆

- 0.75V Reference Voltage UKJ嘉泰姆

- ±1% Accuracy Over-Temperature UKJ嘉泰姆

· Operates from An Input Battery Voltage Range of +3V to +28V UKJ嘉泰姆

· Power-On-Reset Monitoring on VCC Pin and PVCC Pin to Avoid Wrong Sequence UKJ嘉泰姆

· Excellent Line and Load Transient Responses UKJ嘉泰姆

· PFM Mode for Increased Light Load Efficiency UKJ嘉泰姆

· Programmable PWM Frequency from 100kHz to 500kHz UKJ嘉泰姆

· Integrated MOSFET Drivers UKJ嘉泰姆

· Integrated Bootstrap Forward P-CH MOSFET UKJ嘉泰姆

· Integrated Soft-Start UKJ嘉泰姆

· Selectable Forced PWM or Automatic PFM/PWM Mode UKJ嘉泰姆

· Power Good Monitoring UKJ嘉泰姆

· 70% Under-Voltage Protection UKJ嘉泰姆

· 125% Over-Voltage Protection UKJ嘉泰姆

· Adjustable Current-Limit Protection UKJ嘉泰姆

- Using Sense Low-Side MOSFET’s RDS(ON) UKJ嘉泰姆

· Over-Temperature Protection LDO Controller UKJ嘉泰姆

· 0.75V Reference Voltage with 1.5% Accuracy Over Temperature UKJ嘉泰姆

· Independent Enable and Power OK FunctionUKJ嘉泰姆

· 50% Under-Voltage Protection UKJ嘉泰姆

· Integrated Soft-Start Function UKJ嘉泰姆

· TQFN-16 3x3 package UKJ嘉泰姆

· Lead Free and Green Device Available (RoHS Compliant)UKJ嘉泰姆

   应用范围 返回TOPUKJ嘉泰姆


· Notebook UKJ嘉泰姆

· Table PC UKJ嘉泰姆

· Hand-Held Portable UKJ嘉泰姆

· AIO PCUKJ嘉泰姆

   技术规格书(产品PDF) 返回TOP UKJ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UKJ嘉泰姆

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产品封装图 返回TOPUKJ嘉泰姆


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电路原理图 返回TOPUKJ嘉泰姆

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