TPS2501 具有升压转换器的集成 USB 电源开关
TPS2501 描述
The TPS2500 and TPS2501 provide 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 Hi-Speed USB compliant power output, output switch enable, current limit, and overcurrent 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+ or three-cell NiCd, NiMH, or alkaline.
The USB power-switch current limit is programmable via an external resistor from as low as 130 mA to as high as 1400 mA (typical). Two standard USB ports can be supported from a single TPS2500 or TPS2501 at the 1400-mA setting.
|
TPS2500 |
TPS2501 |
| Vin(Min)(V) |
1.8 |
1.8 |
| Vin(Max)(V) |
5.25 |
5.25 |
| Current Limit(A) |
0.13 to 1.4 |
0.13 to 1.4 |
| Pin/Package |
10SON |
10SON |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
| Continuous Current(Max)(A) |
1.4 |
1.4 |
| Number of Switches |
1 |
1 |
| Enable |
Active High |
Active High |
| Topology |
Boost DC-DC converter |
Boost DC-DC converter |
| Iout @ Vin=3V (max)(A) |
1.15 |
1.15 |
| Boost Switch Current Limit (typ)(A) |
4.5 |
4.5 |
| Current Limit Accuracy @ 1.4A(%) |
+/-20 |
+/-20 |
| Switching Frequency(Typ)(kHz) |
1000 |
1000 |
| USB Switch rDS(on)(mOhms) |
50 |
50 |
| Eco-Mode Light-Load Efficiency |
Enabled |
Disabled |
| Rating |
Catalog |
Catalog |
| Current Limit Topology |
Constant-Current |
Constant-Current |
TPS2501 特性
- Integrated Synchronous Boost Converter and USB Current-Limit Power Switch
- Light-Load, High-Efficiency Eco-mode™ Control Scheme (TPS2500)
or Constant Frequency (TPS2501)
- 1.8-V to 5.25-V Input Voltage (2.2-V Minimum Start-Up Voltage)
- Adjustable USB Current Limit
- 130 mA to 1400 mA (Typical)
- Accurate 20% Current Limit at 1.4-A Setting
- Powers up to Two Standard USB Ports
- Auxiliary 5.1-V Output
- Fast Overcurrent-Response Time – 5 µs Typical
- Small 3-mm × 3-mm × 0.9-mm SON-10 Package
- 15-kV / 8-kV System-Level ESD Capable
- UL Listed - File No. E169910
- APPLICATIONS
- Portable Applications Using Single Li+ Cell
- USB Hosts Without Native 5-V Supplies
TPS2501 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 |
| TPS2501DRCR |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
OBA |
| TPS2501DRCT |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
OBA |
TPS2501 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 |
| TPS2501DRCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS2501DRCR |
TPS2501DRCR |
| TPS2501DRCT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS2501DRCT |
TPS2501DRCT |
TPS2501 应用技术支持与电子电路设计开发资源下载
- TPS2501 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
- PowerPAD™ 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 TPS2501 +3V to +8V Hot-Swap Power Manager
(PDF 37 KB)
- PowerPAD™ 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)
TPS2501 相关工具
