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TPS2155 用于 USB、DSP 和便携应用领域的可调节 LDO + 双路开关,工作态高电平启用

TPS2155 描述

Two power-distribution switches and an adjustable (TPS2145) or fixed (TPS2147) LDO are incorporated in one small package, providing a power management solution that saves up to 60% in board space over typical implementations. Designed to meet USB 2.0 bus-powered hub requirements, these devices also allow core and I/O voltage sequencing in DSP applications, or power segmentation in portable equipment. Each current-limited switch is a 340-m N-channel MOSFET capable of supplying 200 mA of continuous current. A logic enable compatible with 5-V logic and 3-V logic controls each MOSFET as well as the LDO in the TPS2145. The internal charge pump provides the gate drive controlling the power-switch rise times and fall times, minimizing current surges during switching.

TPS2145 TPS2147 TPS2148 TPS2149 TPS2155 TPS2158 TPS2159
Number of FETs 2 2 2 2 2 2 2
Vin(Min)(V) 2.9 2.9 2.9 2.9 2.9 2.9 2.9
Vin(Max)(V) 5.5 5.5 5.5 5.5 5.5 5.5 5.5
Switch Enable L L L L H H H
rDS(on) per FET, Bus Power(Typ)(mOhms) 340 340 340 340 340 340 340
Application DSP, PDA DSP, PDA USB peripheral USB 2-port hub DSP, PDA USB peripheral USB 2-port hub
Switch Current Limit, Bus Power(Min)(A) 0.2 0.2 0.2 0.2 0.2 0.2 0.2
LDO Output Range(V) 3.3 3.3 3.3 3.3 3.3 3.3 3.3
LDO Output Current(mA) 200 200 200 200 200 200 200
Ports(Max) 2 2 2 2 2 2 2
Pin/Package 14HTSSOP 10MSOP-PowerPAD 8MSOP-PowerPAD 8MSOP-PowerPAD 14HTSSOP 8MSOP-PowerPAD 8MSOP-PowerPAD
TPS2155 特性
TPS2155 芯片订购指南
器件 状态 温度 (oC) 价格(美元) | Quantity 封装 | 引脚 封装数量 | 封装载体 丝印标记
TPS2155IPWP ACTIVE -40 to 85 1.45 | 1ku HTSSOP (PWP) | 14 90 | TUBE PD2155I
TPS2155IPWPG4 ACTIVE -40 to 85 1.45 | 1ku HTSSOP (PWP) | 14 90 | TUBE PD2155I
TPS2155 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
TPS2155IPWP Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS2155IPWP TPS2155IPWP
TPS2155IPWPG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS2155IPWPG4 TPS2155IPWPG4
TPS2155 应用技术支持与电子电路设计开发资源下载
  1. TPS2155 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器USB 功率控制器产品选型与价格 . xls
  3. PowerPADTM Thermally Enhanced Package (PDF 1040 KB)
  4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
  5. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  6. Comparing Performance of Current Ramp and Voltage Ramp Hot Swap Controller ICs (PDF 356 KB)
  7. DN-103 Controlling a -5V Rail Using TPS2155 +3V to +8V Hot-Swap Power Manager (PDF 37 KB)
  8. PowerPADTM Made Easy (PDF 57 KB)
  9. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
  10. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  11. 所选封装材料的热学和电学性质 (PDF 645 KB)
  12. 高速数据转换 (PDF 1967 KB)
TPS2155 相关工具
名称 型号 公司 工具/软件类型
TPS2155 估模块 TPS2155EVM Texas Instruments 开发电路板/EVM