The TPS55340-Q1 device is a monolithic non-synchronous switching converter with
integrated 5-A, 40-V power switch. The device can be configured in several standard
switching-regulator topologies, including boost, SEPIC and isolated flyback. The device has a wide
input voltage range to support applications with input voltage from 2.9 to 38-V.
The TPS55340-Q1 device regulates the output voltage with current mode PWM (pulse width
modulation) control, and has an internal oscillator. The switching frequency of PWM is set by
either an external resistor or by synchronizing to an external clock signal. The user can program
the switching frequency from 100 kHz to 2.5 MHz.
The device features a programmable soft-start function to limit inrush current during
start-up and has other built-in protection features including cycle-by-cycle over current-limit and
The TPS55340-Q1 device is available in a small 3-mm × 3-mm 16-pin WQFN package with
PowerPad for enhanced thermal performance.
For all available packages, see the orderable addendum at the
end of the datasheet.
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