(China (Mainland))
Product Summary
The TPS40000DGQ is a controller for low-voltage, non-isolated synchronous buck regulators. The TPS40000DGQ drives an N-channel MOSFET for theprimary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. Inaddition, 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 tominimize diode losses (both conduction andrecovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drivet technology. The applications of the TPS40000DGQ include Networking Equipment, Telecom Equipment, Base Stations, Servers, DSP Power, Power Modules.
Parametrics
TPS40000DGQ absolute maximum ratings: (1)Input voltage range, VIN, BOOT: VSW + 6.5V; COMP, FB, ILIM, SS/SD: -0.3 to 6V; Input voltage range, VINSW: -0.7 to 10.5V; SWT (SW transient < 50 ns): -2.5V; VDD: 6V; (2)Operating junction temperature range, TJ: -40 to 150℃; (3)Storage temperature, Tstg: -55 to 150℃; (4)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃.
Features
TPS40000DGQ features: (1)Operating Input Voltage 2.25 V to 5.5 V; (2)Output Voltage as Low as 0.7 V; (3)1% Internal 0.7 V Reference; (4)Predictive Gate Drivet N-Channel MOSFET Drivers for Higher Efficiency; (5)Externally Adjustable Soft-Start and Overcurrent Limit, Source-Only Current or Source/Sink Current; (6)Versions for Starting Into VOUT Pre-Bias; (7)10-Lead MSOP PowerPadt Package for Higher Performance; (8)Thermal Shutdown, Internal Boostrap Diode; (9)Fixed-Frequency, Voltage-Mode Control, TPS40000/1/4300-kHz; TPS40002/3/5600-kHz.
Diagrams
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 TPS40000DGQ |
Texas Instruments |
Voltage Mode PWM Controllers Low Input 2.25V-5.5V 300 kHz Frequency |
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TPS40000DGQG4 |
Texas Instruments |
Voltage Mode PWM Controllers Low Input 2.25V-5.5V 300 kHz Frequency |
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TPS40000DGQR |
Texas Instruments |
Voltage Mode PWM Controllers Lo Input 300kHz Freq Synch Buck Cntrlr |
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TPS40000DGQRG4 |
Texas Instruments |
Voltage Mode PWM Controllers Lo Input 300kHz Freq Synch Buck Cntrlr |
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