1FEATURES
2· Operation Over 4.5-V to 28-V Input Range
· Fixed-Frequency Voltage-Mode Controller
· Integrated Unity Gain Amplifier for Remote
Output Sensing
· Predictive Gate Drive™ Generation II for
Improved Efficiency
· <1% Internal 700-mV Reference
· Input Voltage Feed Forward Control
· Prebiased Output Compatible
· Internal Gate Drive Outputs for High-Side and
Synchronous N-Channel MOSFETs
· Switching Frequency Programmable to 1 MHz
· 20-Pin QFN Package
· Thermal Shutdown Protection
· Software Design Tool and EVM Available

APPLICATIONS
· Power Modules
· Networking/Telecom
· Industrial
· Servers

CONTENTS
Device Ratings 2
Electrical Characteristics 4
Terminal Information 12
Application Information 15
Design Example 26
Additional References 40

DESCRIPTION
The TPS40075 is a mid voltage, wide input (4.5-V to
28-V), synchronous, step-down controller, offering
design flexibility for a variety of user programmable
functions, including; soft start, UVLO, operating
frequency, voltage feed-forward and high-side FET
sensed short circuit protection.
The TPS40075 drives external N-channel MOSFETs
using second generation Predictive Gate Drive to
minimize conduction in the body diode of the low side
FET and maximize efficiency. Pre-biased outputs are
supported by not allowing the low side FET to turn on
until the voltage commanded by the closed loop soft
start is greater than the pre-bias voltage. Voltage
feed forward provides good response to input transients and provides a constant PWM gain over a
wide input voltage operating range to ease
compensation requirements. Programmable short
circuit protection provides fault current limiting and
hiccup recovery to minimize power dissipation with a
shorted output. The 20-pin QFN package gives good
thermal performance and a compact footprint.