Datasheet

Background
1-2
1.1 Background
The TPS54x72EVM−222 evaluation modules use the TPS54672, TPS54872,
or TPS54972 synchronous buck tracking/termination regulators to provide an
output voltage of from 0.46 V to 1.75 V from a nominal 3.3 V input or 0.7 V to
1.75 V for a nominal 5-V input. Rated input voltage and output current range
is given in . These evaluation modules are designed to demonstrate the small
PCB areas that may be achieved when designing with the TPS54x72 family
of regulators. The swicthing frequency is set at a nominal 700 kHz, allowing
the use of a small footprint 0.65 µH output inductor. The MOSFETs of the
TPS54x72 are incorporated inside the TPS54x72 package. This eliminates
the need for external MOSFETs and their associated drivers. The low
drain-to-source on resistance of the MOSFETs gives the TPS54x72 high
efficiency and helps to keep the junction temperature low at high output
currents. The compensation components are provided external to the IC, and
allow for an adjustable output voltage and a customizable loop reponse.
Table 1−1.Input Voltage and Output Current Summary
EVM Input Voltage Range Output Current Range
TPS54672EVM-222 3.0 V to 6.0 V −6 A to 6 A
TPS54872EVM-222 4.0 V to 6.0 V −8 A to 8 A
TPS54972EVM-222 3.0 V to 4.0 V −9 A to 9 A