1.6A连续输出电流效率高达90%输入电压6V至40V CXSD62246固定150kHz频率内部振荡器单片异步降压调节器

CXSD62246是单片异步降压调节器。该装置在6V～40V宽输入电压范围内提供1.6A的连续负载电流，采用电流模式控制调节输出电压，提供快速的瞬态响应。CXSD62246配备了自动PFM/PWM模式操作。在轻载时，集成电路以PFM模式工作以减少开关损耗。在重载情况下，芯片工作在PWM模式。

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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       CXSD62246 is a monolithic asynchronous buck regulator. The device provides 1.6A of continuous load current over a wide input voltage of 6V to 40V. It uses current mode control to regulator the output voltage and provides fast transient response. The CXSD62246 is equipped with an automatic PFM/PWM mode operation. At light load, the IC operates in the PFM mode to reduce the switching losses. At heavy load, the IC works in PWM mode. Hiccup mode current limit and thermal shutdown elements for a full protection under fault conditions. Anti‐ring function is to reduce the influence of EMI. This device, available in a SOP‐8 package, provides a very compact system solution with minimal reliance on external components.

   产品特点 返回TOP

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 Internal P‐Channel MOSFET

 1.6A continuous output current

 Up to 90% efficiency

  Integrated Power Save Mode Operation to Improve Light Load Efficiency

 Input voltage range: 6V to 40V

 Fixed 150kHz frequency internal oscillator

 Hiccup mode current limit

 Anti‐ringing for lower EMI

 Over temperature protection

 SOP‐8 package

   应用范围 返回TOP

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 Simple high‐efficiency step‐down regulator 

 Efficient pre‐regulator for linear regulators 

 On‐card switching regulators 

 Positive to negative converter 

 Battery charger   

   技术规格书（产品PDF) 返回TOP 

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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