TPS54335/6 SWIFT™ Converters


TI's 4.5 to 28 V input, 3 A, synchronous, step-down converter with Eco-mode

Texas Instruments' TPS54335/6 is a 28 V, 3 A, low-Iq, current-mode, synchronous monolithic buck converter with integrated MOSFETs. The TPS54335/6 enables small designs by integrating the MOSFETs and implementing current-mode control to reduce external component count. Efficiency is maximized through the integrated 128 mΩ/84 mΩ MOSFETs, low-quiescent supply current and pulse skipping at light loads. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode. The TPS54335/6 provides accurate regulation for a variety of loads with an accurate 1.5% voltage reference over temperature.

Cycle-by-cycle current limiting on the high-side FET protects the TPS54335/6 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. Hiccup protection will be triggered if the overcurrent condition has persisted for longer than the pre-set time. Thermal hiccup protection disables the part when die temperature exceeds thermal shutdown temperature and enables the part again after the built-in thermal hiccup time.

TPS54335/6 SWIFT™ Converters

Manufacturer Part Number Description Available Quantity Datasheets
TPS54335DDA IC REG BUCK ADJ 3A 8SOPWRPAD 1020
TPS54336DDA IC REG BUCK ADJ 3A 8SOPWRPAD 326