The TPS54622RHLT is a synchronous step-down SWIFT™ Converter with hiccup protection. It is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count and by selecting a high switching frequency, reducing the footprint of the inductor. The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a stand-alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open-drain power good pins. Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit which turns off the low-side MOSFET to prevent excessive reverse current.
● Synchronizes to external clock
● Hiccup current limit
● Monotonic start-up into prebiased outputs
● Adjustable slow start and power sequencing
● Power good output monitor for undervoltage and overvoltage
● Adjustable input undervoltage lockout
● Supported by SwitcherPro™ software tool
● Integrated 26 and 19mR MOSFETs
● 0.6V ±1% Voltage reference over-temperature
● Green product and no Sb/Br
