CXSD61047B synchronous step-down DC/DC converter wide 4.5V to 23V input voltage range and 3.5A continuous load current capability.

CXSD61047B fault protection includes cycle-bycycle current limit, input UVLO, output over voltage protection and thermal shutdown. Besides, adjustable soft-start function prevents inrush current at turn-on.

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 CXSD61047B is a synchronous step-down DC/DC converter that provides wide 4.5V to 23V input voltage range and 3.5A continuous load current capability. 

The CXSD61047B fault protection includes cycle-bycycle current limit, input UVLO, output over voltage protection and thermal shutdown. Besides, adjustable soft-start function prevents inrush current at turn-on. This device uses current mode control scheme which provides fast transient response. Internal Compensation function reduces external compensation components and simplifies the design process. In shutdown mode, the supply current is less than 1uA. 

The CXSD61047B is available in an 8-pin SOIC package, provides a very compact system solution and good thermal conductance.

   产品特点 返回TOP

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● High Efficiency Up to 96% 

● Low Rds(on) integrated Power MOSFET 

● Internal Compensation Function 

● Wide Input Voltage Range: 4.5V to 23V 

● Adjustable Output Voltage Range: 0.925V to 20V 

● 3.5A Output Current 

● Fixed 340KHz Switching Frequency 

● Current Mode Operation 

● Adjustable Soft-Start 

● Cycle-by-Cycle current limit 

● Input Under Voltage Lockout 

● Over-Temperature Protection With Auto Recovery 

●<1uA Shutdown Current 

●SOP-8 Exposed Pad Packag

   应用范围 返回TOP

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● Set-Top-Box (STB) 

● Televisions 

● Distributed Power Systems 

● XDSL Modems

   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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高压同步DC-DC降压IC
型号	输入耐压	输出电压	输出电流	反馈电压	工作频率	效率	静态工 作电流	待机电流	封装
CXSD61049	8V-35V	可调输出 带线损补偿	2A/带可调恒流设置	1.21V	130K	95%	1.3mA	112uA	SOP-8
CXSD61050	8V-35V	可调输出/带线损 补偿带使能端	2A/带可调恒流设置	1.21V	130K	93%	1.3mA		SOP-8
CXSD61046	4.5-20V	可调输出	2.0A	0.923V	340K	95%	1mA	6uA	SOP-8
CXSD61046A/B	4.5-27V	可调输出	2.0A/2.5A	0.925V	340K	96%	1.3mA	0.3uA	SOP-8
CXSD61048	8V--35V	可调输出 带线损补偿	2.0A/带可调限流保护	1.2V	100-500K	93%	750uA	110uA	ESOP-8
CXSD61048A	10V--35V	可调输出 带线损补偿	2.5A/带可调限流保护	1.2V	100-500K可调	93%	15mA	110uA	SOP-8
CXSD61048B	8V-35V	可调输出 带线损补偿	2.8A/带可调限流保护	1.21V	100-500K可调	93%	15mA	110uA	SOP-8
CXSD61048C	8V-35V	可调输出 带线损补偿	3.2A/带可调限流保护	1.21V	100-500K可调	93%	15mA	110uA	SOP-8
CXSD61047	4.6-22V	可调输出	3.0A	0.923V	340K	95%	55uA	1uA	ESOP8
CXSD61047A	4.5-27V	可调输出	3.0A	0.925V	340K	93%	1.3mA	0.3uA	ESOP8
CXSD61047B	4.5V-23V	可调输出	3.5A	0.925V	340K	96%	2.5mA		ESOP-8
CXSD61051	8V-35V	可调输出 带线损补偿	扩流4.5A带 可调限流保护	1.21V	100-500K可调	95%	14mA	100uA	ESOP8
CXSD61052	3.6-40V	可调输出	2.0A	0.8V	440K	94%	74uA	0.07uA	ESOP-8
CXSD61053	4.5-20V	可调输出	4.0A	0.923V	340K	95%	1.6mA	6uA	ESOP8
CXSD61054	3.5-23V	可调输出	2.0A	0.6V	600K	96%	400uA	1uA	SOT-26
CXSD61055	4.5-17V	可调输出	2.0A	0.6V	600K	96%	400uA	1uA	SOT-26
CXSD61055A	4.5V-23V	可调输出	2.0A	0.8V	600K	92%	800uA		SOT-26
CXSD61055B	3.3-17V	可调输出	2.0A	0.6V	600K	96%	400uA	4uA	SOT-26
CXSD61056	4.5-26V	可调输出	1.2A	0.8V	1.4M	94%	600uA	1uA	SOT-26
CXSD61057	4.0-42V	可调输出	1.5A	0.8V	650K	91%	600uA	6uA	SOT-26