TPS51397ARJER

The device is a monolithic 10-A synchronous buck
converter with integrated MOSFETs that enable high
efficiency and offers ease-of-use with minimum
external component count for space-conscious power
systems.
The TPS51397A employs D-CAP3™ control that
provides fast transient response and excellent line
and load regulation with internal compensation. The
ULQ™ (Ultra Low Quiescent) feature is extremely
beneficial for long battery life in low power operation.
The large duty operation greatly improves the load
transient performance when input voltage is low.
The MODE pin can be used to set Eco-mode™ or
Out-of-Audio™ (OOA) mode for light-load operation
and 500-kHz or 800-kHz switching frequency. The
Eco-mode™ maintains high efficiency during light load
operation. The OOA mode keeps the switching
frequency above audible frequency with minimum
reduction in efficiency.
The device supports both internal and external softstart options. It has an internal fixed soft-start time of
1.2 ms. If the application needs a longer soft-start
time, the external SS pin can be connected to an
external capacitor.
The TPS51397A integrates a power-good indicator
and provides an output discharge function. It provides
complete protection including OVP, UVP, OCP, OTP,
and UVLO. The device is available in a 20-pin 3.0-mm
x 3.0-mm HotRod™ package and the junction
temperature is specified from –40°C to 125°C.