SP6655 400mA高效同步补偿调节器

The SP6655 is a 400mA synchronous buck regulator which is ideal for portable applications that use a Li-Ion or 3 cell alkaline/NiCD/NiMH input. The SP6655’s proprietary control loop, 20μA light load quiescent current, and 0.3Ω power switches provide excellent efficiency across a wide range of output currents. As the input battery supply decreases towards the output voltage, the SP6655 seamlessly transitions into 100% duty ratio operation, further extending useful battery life. The SP6655 is protected against overload and short circuit conditions with a precise inductor peak current limit. Other features include programmable under voltage lockout and low battery detection, externally programmed output voltage down to 1.0V, logic level shutdown control, and 140°C over temperature shutdown.

技术特性

98% Efficiency Possible
Small 10-Pin DFPackage
Ultra-low 20µA Quiescent Current
625mA Inductor Peak Current Limit
Guaranteed Minimum 400mA Output Current
2.7V to 5.5V Input Voltage Range
Output Adjustable Down to 1.0V
100% Duty Ratio Low Dropout Operation
80μA Light Load Quiescent Current in Dropout

应用领域 APPLICATION

Cell Phones
PDA's
DSC's
MP3 Players
USB Devices
Point of Use Power

功能框图 Functional Block Diagram

技术指标

输出电流(mA)	400
最低输入电压(V)	2.6
最高输入电压(V)	5.5
静态电流(µA)	20
最低输出电压(V)	1
最高输出电压(V)	5
频率	PFM
效率(%)	98
说明书	PFM

订购信息 Ordering Information

器件型号	封装编码	有害物质限制	最低温度	最高温度	状态	申请样片
SP6655ER-L/TR	DFN10		-40	85	运行
SP6655ER-L	DFN10		-40	85	运行
SP6655EU-L/TR	MSOP10		0	70	EOL
SP6655EU-L	MSOP10		0	70	EOL
SP6655EU/TR	MSOP10		0	70	返修
SP6655EU	MSOP10		0	70	返修
SP6655CU/TR	MSOP10		0	70	返修
SP6655CU	MSOP10		0	70	返修
SP6655ER/TR	DFN10		-40	85	OBS
SP6655CU-L	MSOP10		0	70	返修
SP6655ER	DFN10		-40	85	运行
SP6655EB	Board		0	70	运行
SP6655CU-L/TR	MSOP10		0	70	返修

应用技术支持与电子电路设计开发资源下载	版本信息	大小
SP6655 数据资料DataSheet下载:pdf	Rev.V2	2 页