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AC/DC & DC/DC controllers (external FET)

TPS40002

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低输入 (2.25V-5.5V) 600kHz 频率、同步降压控制器，仅用作源控制器

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TPS40002

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产品详情

Vin (min) (V) 2.25 Vin (max) (V) 5.5 Iout (max) (A) 15 Operating temperature range (°C) -40 to 85 Control mode Voltage mode Rating Catalog Vout (min) (V) 0.7 Vout (max) (V) 4 Iq (typ) (A) 0.0015 Duty cycle (max) (%) 93
Vin (min) (V) 2.25 Vin (max) (V) 5.5 Iout (max) (A) 15 Operating temperature range (°C) -40 to 85 Control mode Voltage mode Rating Catalog Vout (min) (V) 0.7 Vout (max) (V) 4 Iq (typ) (A) 0.0015 Duty cycle (max) (%) 93
HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9
  • 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
  • Source-Only Current or Source/Sink Current
  • Versions for Starting into VOUT Pre-Bias
  • 10-Lead MSOP PowerPad™ Package for Higher Performance
  • Thermal Shutdown
  • Internal Boostrap Diode
  • Fixed-Frequency, Voltage-Mode Control
    • TPS40000/1/4 300-kHz
    • TPS40002/3/5 600-kHz
  • 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
  • Source-Only Current or Source/Sink Current
  • Versions for Starting into VOUT Pre-Bias
  • 10-Lead MSOP PowerPad™ Package for Higher Performance
  • Thermal Shutdown
  • Internal Boostrap Diode
  • Fixed-Frequency, Voltage-Mode Control
    • TPS40000/1/4 300-kHz
    • TPS40002/3/5 600-kHz
  • 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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类型 标题 下载最新的英语版本 日期
* 数据表 TPS40000 Synchronous Buck Controller 数据表 (Rev. D) 2005年 11月 14日
更多文献资料 Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) 2018年 10月 29日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
应用手册 PowerPAD™ Thermally Enhanced Package (Rev. H) 2018年 7月 6日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
更多文献资料 MOSFET 和 IGBT 栅极驱动器电路的基本原理 最新英语版本 (Rev.A) 2018年 4月 17日
用户指南 TPS40000/1 Controller Enables High Power Sync Step-Down Converter for Low-Logic (Rev. B) 2005年 7月 8日
用户指南 TPS40002/3 Controllers Enable BUCK Converter Operating From 2.5-V Supply (Rev. B) 2005年 7月 8日
用户指南 Ultra-High Efficiency Buck Converter Using TPS40000/1 Controller Keeps Costs Low (Rev. B) 2005年 7月 8日
用户指南 TPS40000/1 Controller Enables High Power Synchronous Step-Down Converter for Low (Rev. A) 2003年 1月 27日
用户指南 TPS40002/3 Controllers Enable BUCK Converter Operating From 2.5-V Supply (Rev. A) 2003年 1月 27日
用户指南 TPS40002/3 Controllers Enable Miniature Synchronous Step-Down Converter for Low (Rev. A) 2003年 1月 27日
用户指南 TPS40003EVM (Rev. A) 2003年 1月 27日
用户指南 Ultra-High Efficiency Buck Converter Using TPS40000/1 Controller Keeps Power Sys (Rev. A) 2003年 1月 27日
应用手册 Predictive Gate Drive Boosts Converter Efficiency 2002年 12月 18日
更多文献资料 Seminar 1400 Topic 7 The Implication of Synchronous Rectifiers to the Design of 2002年 4月 22日

设计和开发

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）。

物料清单 (BOM)

PR070 Bill of Materials

SLVR288.PDF (23 KB)
下载
物料清单 (BOM)

PR072 Bill of Materials

SLVR292.PDF (19 KB)
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原理图

PR070 Schematic

SLVR287.PDF (41 KB)
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原理图

PR072 Schematic

SLVR291.PDF (45 KB)
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封装 引脚 下载
HVSSOP (DGQ) 10 查看选项
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • 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
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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