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TPS54618C-Q1

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Automotive 2.95-V to 6-V, 6-A, 2-MHz synchronous buck converter

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Automotive 2.95-V to 6-V, 6-A, 2-MHz synchronous buck converter

TPS54618C-Q1

ACTIVE

Product details

Parameters

Vin (Min) (V) 2.95 Vin (Max) (V) 6 Vout (Min) (V) 0.8 Vout (Max) (V) 4.5 Iout (Max) (A) 6 Iq (Typ) (mA) 0.515 Iq (Typ) (uA) 515 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 2000 Features Enable, Frequency Synchronization, Power Good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO Adjustable Operating temperature range (C) -40 to 125 Rating Automotive Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

WQFN (RTE) 16 9 mm² 3 x 3 open-in-new Find other Buck converters (integrated switch)

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: -40°C to +125°C, TA
  • Functional Safety-Capable
  • 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

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Description

The TPS54618C-Q1 device is a full-featured 6-V, 6-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS54618C-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 TPS54618C-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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No results found. Please clear your search and try again. View all 4
Type Title Date
* Datasheet TPS54618C-Q1 2.95-V to 6-V In, 6-A Out, 2-MHz Synchronous Buck Converter datasheet Sep. 02, 2020
Application notes TPS54618C-Q1 Functional Safety FIT Rate and Failure Mode Distribution Feb. 24, 2020
Application notes TPS54388C-Q1 Functional Safety FIT Rate and Failure Mode Distribution Feb. 17, 2020
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

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 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 MODELS Download
SLVM349B.ZIP (50 KB) - PSpice Model
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
  • (...)

CAD/CAE symbols

Package Pins Download
WQFN (RTE) 16 View options

Ordering & quality

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