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TPS40009

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2.25V-5.5V、600kHz、灌电流/拉电流、预偏置、同步降压控制器

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TPS40009

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产品详情

Rating Catalog Iout (max) (A) 15 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 4 Vout (min) (V) 0.7 Control mode Voltage mode Features Enable pin, Synchronous Rectification Duty cycle (max) (%) 83 Iq (typ) (A) 0.0015 Number of phases 1 Operating temperature range (°C) -40 to 85
Rating Catalog Iout (max) (A) 15 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 4 Vout (min) (V) 0.7 Control mode Voltage mode Features Enable pin, Synchronous Rectification Duty cycle (max) (%) 83 Iq (typ) (A) 0.0015 Number of phases 1 Operating temperature range (°C) -40 to 85
HVSSOP (DGQ) 10 14.7 mm² (3 mm × 4.9 mm)
  • 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.
  • 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.

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.
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技术文档

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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 LOW INPUT BUCK CONTROLLER, TPS40007/9 数据表 (Rev. B) 2005-2-8
选择指南 电源管理指南 2018 2018-7-31
EVM 用户指南 Using the TPS40009EVM-001 2004-3-3

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）。

评估板

TPS40007EVM-001 — TPS40007EVM-001 评估模块

The TPS40007 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 circuit to allow the use of an N-channel MOSFET as the topside buck switch (...)
用户指南: PDF
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仿真模型

TPS40009 TINA-TI Average Reference Design (Rev. A)

SLVM036 (61 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

TPS40009 TINA-TI Average Spice Model (Rev. A)

SLVM037 (4 KB) - TINA-TI Spice 模型
支持的产品和硬件
仿真模型

TPS40009 Unencrypted PSpice Model Package (Rev. B)

SLVC175B.ZIP (228 KB) - PSpice 模型
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计算工具

SLUC263 — Type III Compensation Calculation Tool

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封装 引脚 CAD 符号、封装和 3D 模型
HVSSOP (DGQ) 10 Ultra Librarian
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