TPS40000

• Product Introduction

TPS40000 Low input (2.25V-5.5V) 300kHz frequency synchronous buck controller for use as source controller only

illustrate   The TPS4000x is a low-voltage, non-isolated synchronous buck regulator controller. These controllers drive an N-channel MOSFET with a primary buck switch and an N-channel MOSFET with a synchronous rectifier switch, enabling very efficient power conversion. In addition, the device controls the main switch to turn off the delay rectifier conduction and the water to the rectifier to turn on the main switch in this line of thinking to reduce diode losses with TI's synchronous rectifier (including conduction and recovery) proprietary predictive gate drive ™ technology. These losses are significantly reduced, increasing efficiency. For a given converter power stage, smaller FETs, or heat sinks, can be used to reduce or even eliminate them.   characteristic The operating input voltage is 2.25 V to 5.5 V The output voltage is 0.7 low V 1%, with a built-in 0.7 V reference The gate drives ™the N-channel MOSFET driver with higher efficiency Externally adjustable soft-start and overcurrent limiting The source is only current or source/absorb current The deviation of the version begins to V output pre The 10-pin MSOP packages the PowerPAD™ for higher performance Thermal shutdown Internal bootstrap diode Fixed frequency, voltage mode control TPS40000/1/4 300 kHz TPS40002/3/5 600 kHz apply Network equipment Telecommunications equipment base station server DSP power supply Power modules