TPS54618-Q1 is in the process of being discontinued.
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TPS54618C-Q1 ACTIVE Automotive 2.95-V to 6-V, 6-A, 2-MHz synchronous buck converter
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Product details

Parameters

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Features

  • Qualified for Automotive Applications
  • AEC Q-100 Qualified With the Following Results:
    • Device Temperature Grade 1: Ambient Operating Temperature Range of –40°C to +125°C
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Two 12-mΩ (typical) MOSFETs for high efficiency at 6-A loads
  • 300-kHz to 2-MHz switching frequency
  • 0.8-V ±1% Voltage reference over temperature (–40°C to +150°C)
  • Synchronizes to external clock
  • Adjustable slow start and sequencing
  • UV and OV power-good output
  • Thermally enhanced 3-mm × 3-mm, 16-pin WQFN package
  • Create a custom design using the TPS54618-Q1 with the WEBENCH® Power Designer
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Description

The TPS54618-Q1 device is a full-featured 6-V, 6-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS54618-Q1 enables small designs by integrating the MOSFETs, implementing current-mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small, 3-mm × 3-mm, thermally-enhanced WQFN package.

The TPS54618-Q1 provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.

Efficiency is maximized through the integrated
12-mΩ MOSFETs and 515-µA typical supply current. Using the enable pin, shutdown supply current is reduced to 5.5-µA by entering a shutdown mode.

Undervoltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output-voltage start-up ramp is controlled by the slow-start pin. An open-drain power-good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency foldback and thermal shutdown protect the device during an overcurrent condition.

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Technical documentation

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Type Title Date
* Data sheet TPS54618-Q1 Automotive 2.95-V to 6-V, 6-A, 2-MHz Synchronous Buck Converter datasheet (Rev. E) May 24, 2019
Selection guide Buck Converter Quick Reference Guide (Rev. B) Apr. 08, 2021
Technical article How to meet European Commission ADAS requirements with TI DC/DC converters May 09, 2019
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note Choosing the Right DC/DC Solution for Automotive Front Camera Systems Jun. 28, 2018
Technical article Let’s break it down: how buck converters make your power supply more flexible Dec. 13, 2017
Application note TPS54618-Q1 High-Frequency (2.35 MHz) Operation Mar. 07, 2017
Application note Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter Dec. 08, 2015

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 TPS54618EVM-606 is a fully assembled and tested curcuit for evaluating the TPS54618 6A, 2MHz Synchronous Step-Down SWIFT DC/DC Converter. The TPS54618EVM-606 operates from a 3V to 6V input and delivers a 1.8V output at 6A. The same board may be modified to provide different output voltages. See (...)
Features
  • 2.95V to 6V operation
  • Current mode control
  • Synchronizes to External Clock
  • 250uA No load quiescent operating current (no switching)
  • 200kHz to 2MHz externally set frequency
  • Low drop out, 98% max. duty cycle
  • +/-1% VSENSE reference over temp
  • 0.8V Internal Voltage Reference
  • Power Good output
  • Stable Operation with (...)

Design tools & simulation

SIMULATION MODEL Download
SLVM349B.ZIP (50 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
  • (...)

CAD/CAE symbols

Package Pins Download
WQFN (RTE) 16 View options

Ordering & quality

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  • Ongoing reliability monitoring

Support & training

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