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低输入 (2.25V-5.5V) 600kHz 频率同步降压控制器,具有输出驱动/吸入

TPS40005 不推荐用于新设计
虽然我们会继续生产此产品供先前的设计使用,但不推荐在新设计中使用此产品。请考虑从这些替代产品中选择一款:
open-in-new 比较替代产品
功能优于比较器件,可直接替换
TPS40009 正在供货 2.25V-5.5V、600kHz、灌电流/拉电流、预偏置、同步降压控制器 This controller is pin-compatible with the TPS40005.

产品详情

Vin (min) (V) 2.25 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 4 Iout (max) (A) 15 Iq (typ) (mA) 1.5 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Operating temperature range (°C) -40 to 85 Regulated outputs (#) 1 Rating Catalog Type Controller
Vin (min) (V) 2.25 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 4 Iout (max) (A) 15 Iq (typ) (mA) 1.5 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Operating temperature range (°C) -40 to 85 Regulated outputs (#) 1 Rating Catalog Type Controller
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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* 数据表 TPS40000 Synchronous Buck Controller 数据表 (Rev. D) 2005年 11月 14日

设计和开发

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封装 引脚 下载
HVSSOP (DGQ) 10 查看选项

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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