TPS54020

ACTIVE

4.5V to 17V Input, 10A Synchronous Step-Down SWIFT™ Converter with Out-of-Phase Synchronizatio

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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 17 Vout (Min) (V) 0.6 Vout (Max) (V) 5 Iout (Max) (A) 10 Iq (Typ) (mA) 0.6 Iq (Typ) (uA) 600 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 1200 Features Adjustable Current Limit, Enable, Frequency Synchronization, Light Load Efficiency, Phase Interleaving, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, Soft Start Adjustable Operating temperature range (C) -40 to 150 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN-HR (RUW) 15 12 mm² 3.5 x 3.5 open-in-new Find other Buck converters (integrated switch)

Features

  • 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
  • –40°C to +150°C Operating junction temperature range
  • 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

All trademarks are the property of their respective owners.

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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 low-side 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.

The SS pin controls the output voltage start-up ramp and allows for selectable soft-start times. Power supply sequencing is also available by configuring the enable (EN) and the open-drain power-good (PWRGD) pins.

Two TPS54020 devices may be synchronized 180° out-of-phase by using the SYNC_OUT and CLK pins.

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Technical documentation

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Type Title Date
* Datasheet TPS54020 Small, 10-A, 4.5-V to 17-V input, SWIFT™ synchronous step-down converter with light-load efficiency datasheet (Rev. E) Mar. 05, 2019
Application notes Calculating Efficiency (Rev. A) Mar. 06, 2020
Application notes Minimizing Output Ripple During Startup (Rev. A) May 20, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Selection guides SWIFT DC/DC Converters Selector Guide (Rev. G) Feb. 06, 2019
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Minimizing Output Ripple During Startup Jun. 22, 2017
Technical articles Thinking beyond the buck controller for high-output power supplies May 27, 2016
Application notes Semiconductor and IC Package Thermal Metrics (Rev. C) Apr. 19, 2016
Application notes SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC Feb. 22, 2016
Technical articles Increase voltage tolerance and accuracy in FPGAs Feb. 14, 2015
Application notes HotRod QFN Application Note Apr. 09, 2014
Technical articles Analog Applications Spotlight: Mark Pieper Jun. 06, 2013
Application notes 2Q 2013 Issue Analog Applications Journal Apr. 16, 2013
Application notes Designing a negative boost converter from a standard positive buck converter Apr. 16, 2013
User guides TPS54020 EVM-082 Evaluation Module (PWR082) Sep. 05, 2012
Application notes Understanding Thermal Dissipation and Design of a Heatsink May 04, 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
25
Description
The Texas Instruments TPS54020EVM-082 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS54020 10A Synchronous Step-Down SWIFT™ Converter.
Features
  • 5V to 15V Input Range
  • 10A Output Current
  • 200kHz to 1.2MHz Switching Frequency
  • Current Limit: Hiccup Mode
  • 0.6V Voltage Reference with ±1% Accuracy
  • Programmable UVLO
  • Power Good
  • Prebias Start-up

Design tools & simulation

SIMULATION MODELS Download
SLVM657A.ZIP (29 KB) - PSpice Model
SIMULATION MODELS Download
SLVM903.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLVM904.TSC (65 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLVM995.ZIP (118 KB) - PSpice Model
SIMULATION MODELS Download
SLVMAR8.ZIP (65 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLVMAR9.TSC (440 KB) - TINA-TI Reference Design
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
4.5V to 17V Input, 10-A Synchronous Buck Converter Optimized for Small Size and Low Output Voltage
PMP9194 PMP9194 uses the TPS54020 synchronous-buck SWIFT converter with integrated FETs to provide a 10A/1V solution in less than 22mmx12mm of total board space area. This reference design uses a small 1.1uH inductor, 2x100uF ceramic output capacitors, and small 0402 external components to save space. The (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN-HR (RUW) 15 View options

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