TPS2140 用于高功率 USB 外设、具有双路电流限制的可调节 LDO Plus 3.3V 开关
TPS2140 描述
The TPS2140/41/50/51 is a USB 1.0 and 2.0 Specification-compatible IC containing a dual-current-limiting power switch and an adjustable low dropout regulator (LDO). Both the switch and LDO limit inrush current by controlling the turnon slew rate. The unique dual-current-limiting feature of the switch allows USB peripherals to utilize high-value capacitance at the output of the switch, while keeping the inrush current low. During turn on, the switch limits the current delivered to the capacitive load to less than 100 mA. When the output voltage from the switch reaches about 93% of the input voltage, the switch power good output goes high, and the switch current limit increases to 800mA (minimum), at which point higher current loads can be turned on.
|
TPS2140 |
TPS2141 |
TPS2150 |
TPS2151 |
| Number of FETs |
1 |
1 |
1 |
1 |
| Vin(Min)(V) |
2.7 |
4.1 |
2.7 |
4.1 |
| Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
5.5 |
| Switch Enable |
L |
L |
H |
H |
| rDS(on) per FET, Bus Power(Typ)(mOhms) |
|
40 |
40 |
40 |
| Application |
USB high power peripheral, DSP |
USB high power peripheral |
USB peripheral, DSP |
USB peripheral |
| Switch Current Limit, Bus Power(Min)(A) |
0.8 |
0.8 |
0.8 |
0.8 |
| LDO Output Range(V) |
0.9 to 3.3 |
0.9 to 3.3 |
0.9 to 3.3 |
0.9 to 3.3 |
| LDO Output Current(mA) |
250 |
250 |
250 |
250 |
| Ports(Max) |
1 |
1 |
1 |
1 |
| Pin/Package |
14HTSSOP |
14HTSSOP |
14HTSSOP |
14HTSSOP |
TPS2140 特性
- Complete Power Management Solution for USB High-Power Peripherals
- 250 mA Low-Dropout Regulator (LDO) With Enable and 325 mA (Typ) Current Limit
- LDO Supports 2.7 V to 5.5 V VIN and 0.9 V to 3.3 V Adjustable VOUT
- 40 mOhm (Typ) High-Side MOSFET With Dual Current Limit
- Undervoltage Lockout and Power Good for LDO and Switch
- CMOS- and TTL-Compatible Enable Inputs
- 85 uA (Typ) Supply Current
- 5 uA (Typ) Standby Supply Current
- Available in 14-Pin HTSSOP (PowerPADTM)
- –40°C to 85°C Ambient Temperature Range
- Alternative to TPS2148/58 3.3-V LDO With 3.3-V Switch and 5-V Switch
- APPLICATIONS
- High-Power USBTM Peripherals
- ADSL Modems
- Digital Still and PC Cameras
- Zip Drives
- Speakers
- DSP Sequencing
TPS2140 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 |
| TPS2140IPWP |
ACTIVE |
-40 to 85 |
1.70 | 1ku |
HTSSOP (PWP) | 14 |
90 | TUBE |
2140I |
| TPS2140IPWPG4 |
ACTIVE |
-40 to 85 |
1.70 | 1ku |
HTSSOP (PWP) | 14 |
90 | TUBE |
2140I |
| TPS2140IPWPR |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
HTSSOP (PWP) | 14 |
2000 | LARGE T&R |
2140I |
| TPS2140IPWPRG4 |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
HTSSOP (PWP) | 14 |
2000 | LARGE T&R |
2140I |
TPS2140 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 |
| TPS2140IPWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS2140IPWP |
TPS2140IPWP |
| TPS2140IPWPG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS2140IPWPG4 |
TPS2140IPWPG4 |
| TPS2140IPWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS2140IPWPR |
TPS2140IPWPR |
| TPS2140IPWPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS2140IPWPRG4 |
TPS2140IPWPRG4 |
TPS2140 应用技术支持与电子电路设计开发资源下载
- TPS2140 数据资料 dataSheet 下载.PDF
- TI 德州仪器USB 功率控制器产品选型与价格 . 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 TPS2140 +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)
TPS2140 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS2140 估模块 |
TPS2140EVM |
Texas Instruments |
开发电路板/EVM |