TPS54560B

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4.5-V to 60-V input, 5-A, step-down DC-DC converter with Eco-mode™

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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 60 Vout (Min) (V) 0.8 Vout (Max) (V) 58.8 Iout (Max) (A) 5 Iq (Typ) (uA) 146 Switching frequency (Min) (kHz) 100 Switching frequency (Max) (kHz) 2500 Features Enable, Frequency Synchronization, Light Load Efficiency, Over Current Protection, Pre-Bias Start-Up, Wettable Flanks Package Operating temperature range (C) -40 to 150 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

HSOIC (DDA) 8 19 mm² 4.9 x 3.9 open-in-new Find other Buck converters (integrated switch)

Features

  • High efficiency at light loads with pulse skipping Eco-mode™
  • 92-mΩ high-side MOSFET
  • 146-µA operating quiescent current and
    2-µA shutdown current
  • 100-kHz to 2.5-MHz Fixed switching frequency
  • Synchronizes to external clock
  • Low dropout at light loads with integrated BOOT recharge FET
  • Adjustable UVLO and hysteresis
  • 0.8 V 1% Internal voltage reference
  • 8-Pin HSOIC with PowerPAD™ package
  • –40°C to 150°C TJ operating range
  • Create a custom design using the TPS54560B with the WEBENCH® Power Designer
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Description

The TPS54560B is a 60-V, 5-A step-down regulator with an integrated high side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces no-load-supply current to 146 µA. Shutdown supply current is reduced to 2 µA when the EN (enable) pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using the EN pin. Output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide switching frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.

The TPS54560B is available in an 8-pin thermally enhanced HSOIC PowerPAD package.

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Technical documentation

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Type Title Date
* Data sheet TPS54560B 4.5-V to 60-V Input, 5-A step-down dc/dc converter with Eco-mode™ datasheet Jan. 24, 2019
Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) Jul. 26, 2021
Application note Working with Inverting Buck-Boost Converters (Rev. A) May 14, 2020
Application note NRND & Differences TPS54340/360/540/560 and TPS54340B/360B/540B/560B Apr. 05, 2019
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note Output Ripple Voltage for Buck Switching Regulator (Rev. A) Oct. 13, 2014
Application note Accurately measuring efficiency of ultralow-IQ devices Jan. 22, 2014
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) Apr. 23, 2013
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) Apr. 23, 2013

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description
The Texas Instruments TPS54560EVM-515 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS54560 Step-Down DC/DC Converter. The EVM operates from a 7V to 60V input (12V nominal) and provides a 5.0V output at 5A.
Features
  • 4.5 V to 60 V Input Supply Voltage
  • Integrated 90-mΩ High Side N-Channel MOSFET
  • 146 µA Operating Quiescent Current
  • 2 µA Shutdown Current
  • 100 kHz to 2.5 MHz Switching Frequency
  • Adjustable UVLO Voltage and Hysteresis

Design tools & simulation

SIMULATION MODEL Download
SLVM811A.ZIP (113 KB) - PSpice Model
SIMULATION MODEL Download
SLVM941.ZIP (63 KB) - PSpice Model
SIMULATION MODEL Download
SLVM969A.TSC (903 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVM970.ZIP (50 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLVMAY3.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLVMAY4.TSC (64 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVMCU1.ZIP (5 KB) - PSpice Model
SIMULATION MODEL Download
SLVMCU2.ZIP (1 KB) - PSpice Model
SIMULATION TOOL 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
+/-40-V inverting buck-boost with auxiliary output reference design
PMP22343 — This reference design uses the TPS54560B in an inverting buck-boost topology to generate a -40-V output from a +5-V input. An auxiliary winding generates a +40-V output with reference to the same ground. For applications needing a positive and negative voltage, the buck topology provides a low-noise (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SO PowerPAD (DDA) 8 View options

Ordering & quality

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