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

Fixed-Frequency Voltage-Mode Control

− TPS40007, 300 kHz

− TPS40009, 600 kHz

Source/Sink with VOUT Prebias

10-Lead MSOP PowerPad Package for Higher Performance

Thermal Shutdown

Internal Boostrap Diode S

APPLICATIONS

Networking Equipment

Telecom Equipment

Base Stations
Servers

DSP Power

Power Modules

DESCRIPTION

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.

SIMPLIFIED APPLICATION DIAGRAM

TPS40007DGQR New and Original in the stock, welcome to send the request to us!