【导读】平板电脑的硬件配备有几项较为具体的目标:重量轻、功耗低、 高分辩率显示屏,手写输入和具备无线网络功能。MPS低功耗平板电脑电池设计方案具有高性能,低功耗和高成本效益特点,特别适合应用于网络系统和平板电脑电源系统。
【方案特色】
1、高性能
2、低耗掉量
2、高成本效益
3、电源管理集成电路
【系统方块图】
Basic Power Architecture of TPC Power delivery for single cell parallel
Basic Power Architecture of TPC Power delivery for Two cells Battery in series
【规格说明】
MP28257/8/9: Smallest 2A ~ 4A POL solutions规格简介
Wide 3V to 20V Operating InputRange
2~4 A Output Current
Low RDS(ON) Internal Power MOSFETs
No bonding wires package
Proprietary Switching Loss Reduction Technique
Power saving operation support better light load efficiency
Power Good Indicator in QFN Package
Soft Shutdown
Programmable Switching Frequency
OCP, SCP, OVP, UVP Protection and
Thermal Shutdown
Output Adjustable from 0.8V to 13V
Available in 8-pin SOIC or 12-pin QFN2x3 Packages
MP2249: Low voltage, Low Cost, high performance POL
2.5V to 6V Operating InputRange
3A Output Current
Internal Power MOSFETs
100% Duty Cycle in Dropout
Output Discharge function
1MHz constant switching frequency
Power save mode at light load
SCP, OCP, OVP, UVP Protection
Available in 3x3 TQFN10 or SOIC8E Package
应用范围
Networking Systems
TPC Power Systems