TPS40004DGQR ,Low Input (2.25V-5.5V) 300 kHz Frequency, Synchronous Buck Controller, Source/ SinkELECTRICAL CHARACTERISTICSover recommended operating temperature range, T = −40C to 85C, V = 5.0 ..
TPS40007DGQ ,Low Input (2.25V-5.5V) 300 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias OperatiELECTRICAL CHARACTERISTICStemperature range, T = −40C to 85C, V = 5.0 V, T = T ; all parameters m ..
TPS40007DGQR ,Low Input (2.25V-5.5V) 300 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias OperatiFEATURES APPLICATIONS Operating Input Voltage 2.25 V to 5.5 V Networking Equipment Output Volta ..
TPS40007DGQR. ,Low Input (2.25V-5.5V) 300 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias Operati SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005DESCRIPTION (continued)The current- ..
TPS40007DGQRG4 ,Low Input (2.25V-5.5V) 300 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias Operatimaximum ratings” may cause permanent damage to the device. These are stress ratings only,and functi ..
TPS40009DGQ ,Low Input (2.25V-5.5V) 600 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias OperatiELECTRICAL CHARACTERISTICStemperature range, T = −40C to 85C, V = 5.0 V, T = T ; all parameters m ..
TSB41AB1 ,IEEE 1394a One-Port Cable Transceiver/ArbiterFeatures Single 3.3-V Supply Operation IEEE 1394a-2000 Compliant Common ModeNoise Filter on Incom ..
TSB41AB1GQE ,IEEE 1394a One-Port Cable Transceiver/ArbiterFeatures Single 3.3-V Supply Operation IEEE 1394a-2000 Compliant Common ModeNoise Filter on Incom ..
TSB41AB1PAP ,IEEE 1394a One-Port Cable Transceiver/ArbiterFeatures Single 3.3-V Supply Operation IEEE 1394a-2000 Compliant Common ModeNoise Filter on Incom ..
TSB41AB1PHP ,IEEE 1394a One-Port Cable Transceiver/ArbiterFeatures Single 3.3-V Supply Operation IEEE 1394a-2000 Compliant Common ModeNoise Filter on Incom ..
TSB41AB1PHPG4 ,IEEE 1394a One-Port Cable Transceiver/Arbiter 48-HTQFP 0 to 70 SLLS423I − JUNE 2000 − REVISED MARCH 2005 F ..
TSB41AB1PHPG4 ,IEEE 1394a One-Port Cable Transceiver/Arbiter 48-HTQFP 0 to 70 SLLS423I − JUNE 2000 − REVISED MARCH 2005 F ..
TPS40004DGQ-TPS40004DGQR
Low Input (2.25V-5.5V) 300 kHz Frequency, Synchronous Buck Controller, Source/ Sink
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SLUS507D − JANUARY 2002 − REVISED NOVEMBER 2005
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FEATURES 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
SIMPLIFIED APPLICATION DIAGRAM
APPLICATIONS Networking Equipment Telecom Equipment Base Stations Servers DSP Power Power Modules DESCRIPTIONThe 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.
UDG−01141
VIN
VOUT
