1 Features

• –40°C to +150°C operating junction temperature

range

• Integrated 8-mΩ and 6-mΩ MOSFETs

• Thermally-enhanced 3.5-mm × 3.5-mm HotRod™

package

• Peak-current-mode control

• Eco-mode™ pulse skip for higher efficiency

• Overcurrent protection for both MOSFETs

• Selectable overcurrent protection schemes

• Selectable overcurrent protection levels

• Split power rail: 1.6 V to 17 V on PVIN

• 0.6-V voltage reference with ±1% accuracy

• 200-kHz to 1.2-MHz switching frequency

• Synchronizes to external clock

• Start-up into prebiased outputs

• Overtemperature and overvoltage protection

• Adjustable soft start and power sequencing

• Power-good output monitor for undervoltage and

overvoltage

• SYNC_OUT function provides output clock signal

180° out-of-phase

• For SWIFT™ documentation and WEBENCH, visit

http://www.ti.com/swift

• Create a custom design using the TPS54020 with

the WEBENCH® Power Designer

2 Applications

• Wireless infrastructure and wired communications

equipment

• Test and measurement

• Aerospace and defense

• DSP and FPGA point-of-load industrial

applications

3 Description

The TPS54020 is a 10-A, 4.5-V to 17-V input SWIFT

converter. The innovative 3.5-mm × 3.5-mm HotRod

package optimizes high-density step-down designs.

The TPS54020 is a full-featured converter.

High efficiency is achieved through the innovative

integration and packaging of the high-side and lowside

MOSFETs. The TPS54020 operates at

continuous current mode (CCM) at higher load

conditions, and transitions to Eco-mode while skipping

pulses to boost the efficiency at light loads.

Current limiting on both MOSFETs provides device

and system protection. Cycle-by-cycle current limiting

in the high-side MOSFET protects for overload

situations. Low-side MOSFET zero current detection

turns off the low-side MOSFET while operating under

light loads. Three selectable current-limit thresholds

allow a good fit for various applications. A hiccup or

cycle-by-cycle overcurrent protection scheme is also

selectable.

Thermal shutdown protection disables switching when

die temperature exceeds the thermal shutdown trip

point and enables switching after the built-in thermal

hysteresis and shutdown hiccup time.