TPS40009
- Operating Input Voltage 2.25 V to 5.5 V
- Output Voltage as Low as 0.7 V
- 1% Internal 0.7 V Reference
- Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
- Externally Adjustable Soft-Start and Overcurrent Limit
- Fixed-Frequency Voltage-Mode Control
- TPS40007, 300 kHz
- TPS40009, 600 kHz
- Source/Sink with VOUT Prebias
- 10-Lead MSOP PowerPad™ Package for Higher Performance
- Thermal Shutdown
- Internal Boostrap Diode
- APPLICATIONS
- Networking Equipment
- Telecom Equipment
- Base Stations
- Servers
- DSP Power
- Power Modules
PowerPAD and Predictive Gate Drive are trademarks of Texas Instruments Incorporated.
The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive™ technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.
The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor connected to the SS/SD pin. The SS/SD pin is also used for shutdown.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LOW INPUT BUCK CONTROLLER, TPS40007/9 数据表 (Rev. B) | 2005年 2月 8日 | |||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
用户指南 | Using the TPS40009EVM-001 | 2004年 3月 3日 |
设计和开发
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TPS40007EVM-001 — TPS40007EVM-001 评估模块
TPS40009EVM-001 — TPS40009EVM-001 评估模块
The TPS40009 is a voltage-mode, synchronous buck PWM controller that uses TI's proprietary Predictive Gate Drive™ technology to wring maximum efficiency from step-down converters. This controller provides a bootstrap charging circuit to allow the use of an N-channel MOSFET as the topside buck (...)
TPS40009 TINA-TI Average Reference Design (Rev. A)
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
HVSSOP (DGQ) | 10 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点