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
发表时间：2020-06-10浏览次数：7
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 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP 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 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 Power Bank Tablet Portable Equiment 技术规格书（产品PDF) 返回TOP 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
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
