4-V to 18-V input, advanced current mode, 6-A synchronous SWIFT™ step-down converter

The TPS543620 is a

high-efficiency 18-V, 6-A synchronous buck converter employing an

internally-compensated, fixed-frequency Advanced Current Mode control. It is capable

of providing high efficiency while running at a switching frequency up to 2.2 MHz.

The device is in a small 2.5-mm x 3-mm HotRod™ VQFN

package, which coupled with high efficiency at high frequency, makes it optimal for

designs requiring a small solution size. The fixed frequency controller can operate

from 500 kHz to 2.2 MHz and can be synchronized to an external clock using the SYNC

pin. Additional features include a high accuracy voltage reference, selectable soft

start times, montonic start-up into pre-biased outputs, selectable current limits,

adjustable UVLO through the EN pin, and a full suite of fault protections.