TPS22959
- Integrated Single Channel Load Switch
- VBIAS Voltage Range: 2.5 V to 5.5 V
- VIN Voltage Range: 0.8 V to 5.5 V
- Ultra Low RON Resistance
- RON = 4.4 mΩ at VIN = 5 V (VBIAS = 5 V)
- 15 A Maximum Continuous Switch Current
- Low Quiescent Current
- (20 µA for VBIAS = 5 V)
- Low Shutdown Current
- (1 µA for VBIAS = 5 V)
- Low Control Input Threshold Enables Use of 1.2 V or Higher GPIO
- Controlled and Fixed Slew Rate Across VBIAS and
VIN
- tR = 2663 µs at VIN = 5 V (VBIAS = 5 V)
- Quick Output Discharge (QOD)
- SON 8-Pin Package with Thermal Pad
- ESD Performance Tested per JESD 22
- 2-kV Human-Body Model (HBM)
- 1-kV Charged-Device Model (CDM)
The TPS22959 is a small, ultra-low RON, single channel load switch with controlled turn on. The device contains an N-channel MOSFET that can operate over an input voltage range of 0.8 V to 5.5 V and supports a maximum continuous current of 15 A.
The combination of ultra-low RON and high current capability of the device makes it ideal for driving processor rails with very tight voltage dropout tolerances. The controlled rise time of the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating voltage droop on the power supply. The switch can be independently controlled via the ON pin, which is capable of interfacing directly with low-voltage control signals originating from microcontrollers or low voltage discrete logic. The device further reduces the total solution size by integrating a 224-Ω pull-down resistor for quick output discharge (QOD) when the switch is turned off.
The TPS22959 is available in a small 3.00 mm x 3.00 mm WSON-8 package (DNY). The DNY package integrates a thermal pad which allows for high power dissipation in high current and high temperature applications. The device is characterized for operation over the free-air temperature range of –40°C to 105°C.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | TPS22959 5.5-V, 15-A, 4.4-mΩ On-Resistance Load Switch 数据表 (Rev. B) | PDF | HTML | 2015-7-27 | ||
| 应用手册 | Load Switch Thermal Considerations (Rev. A) | 2018-10-11 | ||||
| 应用手册 | Basics of Load Switches (Rev. A) | 2018-9-5 | ||||
| 应用手册 | Selecting a Load Switch to Replace a Discrete Solution | 2017-4-30 | ||||
| 应用手册 | Timing of Load Switches | 2017-4-27 | ||||
| 应用手册 | Managing Inrush Current (Rev. A) | 2015-5-28 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
TPS22959EVM-079 — TPS22959 评估模块
TPS22959EVM 是一个包含 TPS22959 负载开关器件的双面 PCB。通过该器件的输入和输出连接以及 PCB 布局布线，可处理高连续电流，并提供进出被测器件的低电阻通道。通过测试点连接，EVM 用户可以在用户定义的测试条件下控制器件并进行准确的 RON 测量。
TIDA-00513 — 用于提高输出电流和降低导通电阻的并联负载开关参考设计
TIDA-00513 展示了两个并联负载开关示例。通过在并行配置中放置多个通道，可以扩展现有负载开关的功能。
第一个示例使用双通道 TPS22966 的两个通道，总输出电流为 10A。
第二个示例使用三个并联的 TPS22959，总输出电流为 30A。
TIDA-00514 — 用于电源多路复用和反向电流阻断的负载开关参考设计
对于可由多个电源供电的系统，在电源之间切换时实现无缝转换并非易事，当还需要阻断反向电流流动时尤其如此。该参考设计展示了如何将两个负载开关用作两个电源之间的电源多路复用器并阻断反向电流。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WSON (DNY) | 8 | Ultra Librarian |
订购和质量
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