92%高效同步升压变换器CXSU63177 1.8伏输入输出电流1A高效率电源转换固定频率脉冲宽度调制PWM控制器使用同步整流器

CXSU63177设备为单电池锂离子或锂聚合物，或两到三电池碱性、镍镉或镍氢电池供电的产品提供电源解决方案。转换器产生稳定的输出电压，由外部电阻分压器调节或固定在芯片内部。它提供高效率的电源转换，并能够提供输出电流高达1 A在5 V的电源电压下降到1.8 V。实施升压转换器是基于一个固定频率，脉冲宽度调制（PWM）控制器使用同步整流器，以获得最大的效率

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 CXSU63177 devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-polymer, or a two to three-cell alkaline, NiCd or NiMH battery. The converter generates a stable output voltage that is adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 1 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width- modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents the converter enters Power Save mode to maintain a high efficiency over a wide load current range. The Power Save mode can be disabled, forcing the converter to operate at a fixed switching frequency. It can also operate synchronized to an external clock signal that is applied to the SYNC pin. the maximum peak current in the boost switch is limited to a value of 5000 mA. The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode. The device is packaged in a 16-pin QFN package measuring 4 mm x 4 mm (RSA) or in a 16-pin TSSOP16.or in a DFN3x3-12 packages

   产品特点 返回TOP

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 92% Efficient Synchronous Boost Converter With 1000-mA Output Current From 1.8-V Input 

 Device Quiescent Current: 20-μA (Typ) 

 Input Voltage Range: 1.8-V to 5.5-V 

 Adjustable Output Voltage Options Up to 5.5-V 

 Power Save Mode for Improved Efficiency at Low Output Power 

 Low Battery Comparator 

 Low EMI-Converter (Integrated Antiringing Switch) 

 Load Disconnect During Shutdown 

 Over-Temperature Protection 

 Available in a Small 4 mm x 4 mm QFN-16 or in a TSSOP-16 or in a DFN3*3-12 package

   应用范围 返回TOP

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 Power Bank 

 Tablet 

 Portable Equiment

   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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Step-up Converter
Part No.	Input Voltage	Output Voltage	Current MAX	Frequency	Efficiency	Package
CXSU63168	6V	20V	350mA	1.25MHz	90%	SOT23-6
CXSU63169	6V	20V/28V/35V	1A	1MHz	90%	SOT23-6
CXSU63170	6V	24V	2A	1.5MHz	90%	SOT23-6
CXSU63171	6V	6V	2A	1MHz	90%	SOT23-6
CXSU63172	6V	20V	2A	1.5MHz	88%	SOT23-5
CXSU63173	6V	20V	2A	1.5MHz	88%	SOT23-6
CXSU63174	20V	30V	3.5A	1.2MHz	95%	DFN-10
CXSU63175	6V	--V	--A	1MHz	90%	SOP-8/TSSOP-8
CXSU63176	6V	6V	2A	1MHz	95%	SOT23-6
CXSU63177	5V	5V	2.1A	1.2MHz	92%	/DFN-12/QFN-16QFN-16
CXSU63178	5V	5V	2.1A	1.2MHz	92%	ESOP-8
CXSU63179	5V	5V	6A	1.2MHz	92%	ESOP-8