The TPS54362-Q1 device is a step-down switch-mode power supply with a low-power mode and
a programmable voltage supervisor. Integrated input voltage-line feed-forward topology improves
line transient regulation of the voltage-mode buck regulator. The regulator has a cycle-by-cycle
current limit. Pulse-skip mode operation under no load reduces the supply current to 65 µA. Using
the enable pin reduces the supply shutdown current to 1 µA.
An open-drain reset signal indicates when the nominal output drops below the threshold
set by an external resistor-divider network. A soft-start capacitor controls the output voltage
start-up ramp. The device activates an internal undervoltage shutdown when the input supply ramps
down to 2.6 V.
Frequency foldback operation protects the device during an overload conditions on the
output. The device also has thermal shutdown protection due to excessive power dissipation.
The B-revision has an improved leakage current parameter, and improved discharged
function while in disable mode.
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