5A恒定输出电流固定240KHz频率3.6V至36V输入电压CXSD62251频率补偿内置限流功能单片降压开关模式稳压器

CXSD62251是一个240千赫的固定频率单片降压开关模式稳压器，带有内置的内部功率MOSFET。它在宽的输入电源范围内实现了5A的连续输出电流，具有良好的负载和线路调节。该装置包括电压基准源、振荡电路、误差放大器、内部PMOS等，PWM控制电路能将占空比从0线性调整到100%。

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXSD62251 is a 240 KHz fixed frequency monolithic step down switch mode regulator with a built in internal Power MOSFET. It achieves 5A continuous output current over a wide input supply range with excellent load and line regulation. The device includes a voltage reference, oscillation circuit, error amplifier, internal PMOS and etc. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function and a short circuit protection function are built inside. An internal compensation block is built in to minimize external component count. The CXSD62251 serves as ideal power supply units for portable devices.

   产品特点 返回TOP

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* 5A Constant Output Current

* 80mΩ R_DSON Internal Power PMOSFET Switch

* Up to 95% Efficiency

* Fixed 240KHz Frequency

* Wide 3.6V to 36V Input Voltage Range

* Output Adjustable from1.222V to 34V

* Built in Frequency Compensation

* Built in Thermal Shutdown Function

* Built in Current Limit Function

* TO-263  Package is Available

* The minimum dropout up to 0.3V

   应用范围 返回TOP

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* Portable DVD

* LCD Monitor / TV

* Battery Charger

* ADSL Modem

* Telecom / Networking Equipment

   技术规格书（产品PDF) 返回TOP 

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     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！

 

产品封装图 返回TOP

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电路原理图 返回TOP

 

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PWM Buck Converter(Non-synchronous)
Part No.	Input Voltage	Output Voltage	Current MAX	Frequency	Efficiency	Package	Precision	OCP	OTP	SP
CXSD62239	20V	ADJ	2A	380KHZ	95%	SOP8	3%	Y	Y	Y
CXSD62240	45V	3.3V/5V/ADJ	3A	150KHZ	90%	TO220/263	3%	Y	Y	Y
CXSD62240H	56V	5V/ADJ	3A	150KHZ	90%	TO220/263	3%	Y	Y	Y
CXSD62241	45V	ADJ	3A	150KHZ	90%	TO252	3%	Y	Y	Y
CXSD62242	45V	ADJ	2A	150KHZ	90%	SOP8	3%	Y	Y	Y
CXSD62243	20V	ADJ	2A	380KHZ	95%	SOP8	3%	Y	Y	Y
CXSD62244	28V	ADJ	3A	380KHZ	95%	SOP8	3%	Y	Y	Y
CXSD62245	32V	ADJ	2A	380KHZ	95%	SOP8	3%	Y	Y	Y
CXSD62246	40V	ADJ	1.8A	150KHZ	90%	SOP8	3%	Y	Y	Y
CXSD62247	45V	3.3V/5V/ADJ	3A	52KHZ	75%	TO220/263	3%	Y	Y	Y
CXSD62248	32V	ADJ	2.5A	52KHZ	95%	SOP8	3%	Y	Y	Y
CXSD62249	32V	ADJ	2.2A	52KHZ	95%	SOP8	3%	Y	Y	Y
CXSD62250	32V	ADJ	2.2A	380KHZ	95%	SOP8	3%	Y	Y	Y
CXSD62251	23V	ADJ	5A	240KHZ	95%	TO263	3%	Y	Y	Y