TPS40007 Series
2.25V-5.5V, 300 kHz, Synchronous Buck Controller, Source/ Sink, Prebias Operation
Manufacturer: Texas Instruments
Catalog(5 parts)
| Part | Output Type | Synchronous Rectifier▲▼ | Operating Temperature▲▼ | Package / Case | Output Configuration | Clock Sync▲▼ | Function | Topology | Supplier Device Package | Voltage - Supply (Vcc/Vdd)▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Frequency - Switching▲▼ | Number of Outputs▲▼ | Output Phases▲▼ | Duty Cycle (Max)▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Mounting Type | Control Features | Voltage - Input▲▼ | Voltage - Input▲▼ | Current - Output▲▼ | Voltage - Output▲▼ | Supplied Contents | Utilized IC / Part | Main Purpose | Outputs and Type | Outputs and Type▲▼ | Board Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Transistor Driver | 25 °C | Die | Positive | Step-Down | Buck | Die | |||||||||||||||||||||||
Texas Instruments TPS40007DGQRG4Buck Regulator Positive Output Step-Down DC-DC Controller IC 10-HVSSOP | Transistor Driver | 10-MSOP, 10-PowerTFSOP | Positive | Step-Down | Buck | 10-HVSSOP | 5.5 V | 2.25 V | 300000 Hz | 1 ul | 1 ul | 0.9399999976158142 ul | 85 °C | -40 °C | Surface Mount | Current Limit, Enable, Soft Start | |||||||||||||
Transistor Driver | 25 °C | Die | Positive | Step-Down | Buck | Die | |||||||||||||||||||||||
Transistor Driver | 10-MSOP, 10-PowerTFSOP | Positive | Step-Down | Buck | 10-HVSSOP | 5.5 V | 2.25 V | 300000 Hz | 1 ul | 1 ul | 0.9399999976158142 ul | 85 °C | -40 °C | Surface Mount | Current Limit, Enable, Soft Start | ||||||||||||||
Texas Instruments TPS40007EVM-001TPS40007 Predictive Gate Drive™ DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board | 300000 Hz | 5 V | 3.299999952316284 V | 10 A | 2.5 V | Board(s) | TPS40007 | DC/DC, Step Down | Non-Isolated | 1 ul | Fully Populated |
Key Features
• Operating Input Voltage 2.25 V to 5.5 VOutput Voltage as Low as 0.7 V1% Internal 0.7 V ReferencePredictive Gate Drive™ N-Channel MOSFET Drivers for Higher EfficiencyExternally Adjustable Soft-Start and Overcurrent LimitFixed-Frequency Voltage-Mode ControlTPS40007, 300 kHzTPS40009, 600 kHzSource/Sink with VOUTPrebias10-Lead MSOP PowerPad™ Package for Higher PerformanceThermal ShutdownInternal Boostrap DiodeAPPLICATIONSNetworking EquipmentTelecom EquipmentBase StationsServersDSP PowerPower ModulesPowerPAD and Predictive Gate Drive are trademarks of Texas Instruments Incorporated.Operating Input Voltage 2.25 V to 5.5 VOutput Voltage as Low as 0.7 V1% Internal 0.7 V ReferencePredictive Gate Drive™ N-Channel MOSFET Drivers for Higher EfficiencyExternally Adjustable Soft-Start and Overcurrent LimitFixed-Frequency Voltage-Mode ControlTPS40007, 300 kHzTPS40009, 600 kHzSource/Sink with VOUTPrebias10-Lead MSOP PowerPad™ Package for Higher PerformanceThermal ShutdownInternal Boostrap DiodeAPPLICATIONSNetworking EquipmentTelecom EquipmentBase StationsServersDSP PowerPower ModulesPowerPAD and Predictive Gate Drive are trademarks of Texas Instruments Incorporated.
Description
AI
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.