SP6654 800mA高效同步补偿调节器

The SP6654 is a 800mA synchronous buck regulator which is ideal for portable applications that use a Li-Ion or 3 cell alkaline/NiCD/NiMH input. The SP6654’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 SP6654 seamlessly transitions into 100% duty ratio operation further extending useful battery life. The SP6654 is protected against overload and short circuit conditions with a precise inductor peak current limit. Other features include programmable under voltage lockout, externally programmed output voltage down to 1.0V, logic level shutdown control, and an open drain power good indicator when VOUT is above 94% of its programmed value.

技术特性

Ultra-low 20µA Quiescent Current
98% Efficiency Possible
800mA Output Current
2.7V to 5.5V Input Voltage Range
Output Adjustable Down to 1.0V
No External FETs Required
1.25A Inductor Peak Current Limit
100% Duty Ratio Low Dropout Operation
80µA Light Load Quiescent Current in Dropout
Logic Shutdown Control
Programmable UVLO
Small 10pin MSOP Package and Small DFN Package
Power Good Indicator

功能框图 Functional Block Diagram

技术指标

输出电流(mA)	800
最低输入电压(V)	2.7
最高输入电压(V)	5.5
静态电流(µA)	20
最低输出电压(V)	0.8
最高输出电压(V)	5
频率	PFM
效率(%)	98
说明书	PFM

应用领域 APPLICATION

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

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
SP6654EU/TR	MSOP10		-40	85	运行
SP6654EU	MSOP10		-40	85	运行
SP6654EU-L/TR	MSOP10		-40	85	运行
SP6654EU-L	MSOP10		-40	85	运行
SP6654ER-L/TR	DFN10		-40	85	运行
SP6654ER	DFN10		-40	85	OBS
SP6654EB	Board		0	70	运行
SP6654ER-L	DFN10		-40	85	运行

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
SP6654 数据资料DataSheet下载:pdf	Rev.V2	2 页