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TPS40000

低輸入 (2.25V-5.5V) 300kHz 頻率同步降壓控制器，僅用作源控制器; ? Operating Input Voltage 2.25 V to 5.5 V\n? Output Voltage as Low as 0.7 V\n? 1% Internal 0.7 V Reference\n? Predictive Gate Drive? N-Channel MOSFET Drivers for Higher Efficiency\n? Externally Adjustable Soft-Start and Overcurrent Limit\n? Source-Only Current or Source/Sink Current\n? Versions for Starting into VOUT Pre-Bias? 10-Lead MSOP PowerPad? Package for Higher Performance\n? Thermal Shutdown\n? Internal Boostrap Diode\n? Fixed-Frequency, Voltage-Mode Control \n - TPS40000/1/4300-kHz\n? TPS40002/3/5600-kHz? APPLICATIONS \n - Networking Equipment\n? Telecom Equipment\n? Base Stations\n? Servers\n? DSP Power\n? Power Modules\nPowerPAD? 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.\n 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.\n\n

TPS40000

LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER

TPS40000

LOW-INPUT VOLTAGE-MODE SYN CHRONOUS BUCK CONTROLLER

TPS40000

LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER

TPS40000_15

LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER

TPS40000_16

LOW-INPUT VOLTAGE-MODE SYN CHRONOUS BUCK CONTROLLER

TPS40000DGQ

LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER

TPS40000DGQ

LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER

TPS40000DGQ

LOW-INPUT VOLTAGE-MODE SYN CHRONOUS BUCK CONTROLLER

TPS40000DGQG4

LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER