SP6656 400mA高效同步补偿调节器，配备动态可调节电压输出设备

The SP6656 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 SP6656’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 SP6656 seamlessly transitions into 100% duty ratio operation, further extending useful battery life. The SP6656 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
Offered in small 2.4 x 2.5mm DFN
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
Dynamic Adjustable Output Voltage
Ideal for portable designs powered with Li Ion battery

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)	2.7
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	脉冲频率调制

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	立刻购买	申请样片
SP6656ER3-L	DFN10		-40	85	Active
SP6656ER3-L/TR	DFN-COL		-40	85	Active
SP6656ER3-ES	DFN10		0	70	前言
SP6656EB	Board		0	70	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
SP6656 数据资料DataSheet下载:pdf	Rev.V2	2 页