Not Recommended for New Designs
8 www.ti.com SLUS535D -MARCH 2003 -REVISED JULY 2007
FEATURES DESCRIPTION D
D
D
D The TPS4002x family of dc-to-dc controllers are designed
for non-isolated synchronous buck regulators, providing
enhanced operation and design flexability through user
programmability. 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 DriveпЈЄ N-Channel MOSFET
Drivers for Higher Efficiency The TPS4002x utilizes a proprietary Predictive Gate
DriveпЈЄ technology to minimize the diode conduction
losses associated with the high-side and synchronous
rectifier N-channel MOSFET transistions. The integrated
charge pump with boost circuit provides a regulated 5-V
gate drive for both the high side and synchronous rectifier
N-channel MOSFETs. The use of the Predictive Gate
DriveпЈЄ technology and charge pump/boost circuits
combine to provide a highly efficient, smaller and less
expensive converter. D Externally Adjustable Soft-Start and Short …
