TPS40020PWP_1059477

· 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^TM N-Channel MOSFET Drivers for Higher Efficiency
· Externally Adjustable Soft-Start and Short Circuit Current Limit
· Programmable Fixed-Frequency 100 KHz-to-1 MHz Voltage-Mode Control
· Source-Only Current or Source/Sink Current
· Quick Response Output Transient Comparators with Power Good Indication Provide Output Status
· 16-Pin PowerPAD^TM Package

· Networking Equipment
· Telecom Equipment
· Base Stations
· Servers
· DSP Power

(4) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

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.

The TPS4002x utilizes a proprietary Predictive Gate Drive^TM 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 Drive^TM technology and charge pump/boost circuits combine to provide a highly efficient, smaller and less expensive converter.

Design flexibility of TPS4002x is provided through user programmability of such functions as: operating frequency, short circuit current detection thresholds, soft-start ramp time, and external synchronization frequency. The operating frequency is programmable using a single resistor over a frequency range of 100 kHz to 1 MHz. Higher operating frequencies yield smaller component values for a given converter power level as well as faster loop closure.