TPS2505 具有升压转换器和 LDO 的集成双路 USB 电源开关
TPS2505 描述
The TPS2505 provides an integrated solution to meet USB 5-V power requirements from a 1.8-V to 5.25-V input
supply. The features include a 5.1-V, 1100-mA boost converter, a 200-mA, 3.3-V LDO linear regulator and dual
USB 2.0 compliant power outputs with independent output switch enable, current limit, and over-current fault
reporting.
The 1.8-V to 5.25-V input can be supplied by sources including DC/DC regulated supplies (e.g. 3.3 V), or
batteries such as single cell Li+, two-cell or three-cell NiCd, NiMH or alkaline.
The output trip current for the dual USB switches can be programmed via external resistors from as low as
100 mA to as high as 1100 mA.
An auxiliary 5.1-V output is provided, where the total current supplied by the USB outputs and the auxiliary by
cannot exceed 1100 mA.
|
TPS2505 |
| Number of FETs |
8 |
| Vin(Min)(V) |
4.5 |
| Vin(Max)(V) |
5.5 |
| Switch Enable |
L |
| rDS(on) per FET, Bus Power(Typ)(mOhms) |
560 |
| Application |
USB 4-port hub |
| Switch Current Limit, Bus Power(Min)(A) |
0.12 |
| LDO Output Range(V) |
3.3 |
| LDO Output Current(mA) |
100 |
| Ports(Max) |
4 |
| Pin/Package |
32HTSSOP |
TPS2505 特性
- Integrated Synchronous Boost Converter, LDO
and Dual USB Current-Limited Switche
- 1.8-V to 5.25-V Input Voltage
(2.2-V Minimum Start-Up Voltage)
- Adjustable Independent USB Current Limit
– 100 mA to 1100 mA
- Auxiliary 5.1-V Output
- 3.3-V Linear Regulator Output
- Inrush Current < 100 mA
- Minimal External Components Required
- Deglitched Independent Fault Reporting
- Small 5-mm x 5-mm QFN-20 Package
- Industrial Temperature Range
TPS2505 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 |
| TPS2505B1RGWR |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
VQFN (RGA) | 20 |
3000 | LARGE T&R |
TPS
2505B1 |
TPS2505 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 |
| TPS2505B1RGWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS2505B1RGWR |
TPS2505B1RGWR |
TPS2505 应用技术支持与电子电路设计开发资源下载
- TPS2505 数据资料 dataSheet 下载.PDF
- TI 德州仪器USB 电源开关产品选型与价格 . xls
- PowerPADTM Thermally Enhanced Package
(PDF 1040 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- Comparing Performance of Current Ramp and Voltage Ramp Hot Swap Controller ICs
(PDF 356 KB)
- DN-103 Controlling a -5V Rail Using TPS2505 +3V to +8V Hot-Swap Power Manager
(PDF 37 KB)
- PowerPADTM Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
TPS2505 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS2505 估模块 |
TPS2505EVM |
Texas Instruments |
开发电路板/EVM |