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TPS54618

AKTIV

Synchroner Abwärtswandler SWIFT™, 2,95 bis 6 V Eingangsspannung, 6 A

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Ähnliche Funktionalität wie der verglichene Baustein.
TPS62867 AKTIV Synchroner Abwärtswandler, 2,4 bis 5,5 V Eingangsspannung, 6 A, im QFN-Gehäuse (1,5 × 2,5 mm) Newer generation of 6-A devices with <30mm² total BOM size.

TPS54618

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Catalog Topology Buck Iout (max) (A) 6 Vin (max) (V) 6 Vin (min) (V) 2.95 Vout (max) (V) 4.5 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000515 Duty cycle (max) (%) 98
Rating Catalog Topology Buck Iout (max) (A) 6 Vin (max) (V) 6 Vin (min) (V) 2.95 Vout (max) (V) 4.5 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000515 Duty cycle (max) (%) 98
WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • 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
  • –40°C to 150°C Operating Junction Temperature Range
  • Thermally enhanced 3-mm × 3-mm, 16-pin WQFN package
  • Pin-Compatible to TPS54418
  • Create a custom design using the TPS54618 with the WEBENCH® Power Designer
  • 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
  • –40°C to 150°C Operating Junction Temperature Range
  • Thermally enhanced 3-mm × 3-mm, 16-pin WQFN package
  • Pin-Compatible to TPS54418
  • Create a custom design using the TPS54618 with the WEBENCH® Power Designer

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

The TPS54618 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 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.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.

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

The TPS54618 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 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.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt TPS54618 2.95-V to 6-V, 6-A, Synchronous Step-Down SWIFT Converter datasheet (Rev. F) PDF | HTML 24.05.2019
Anwendungshinweis Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25.03.2024
Anwendungshinweis Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 26.07.2021
Auswahlhilfe Buck Converter Quick Reference Guide (Rev. B) 08.04.2021
Anwendungshinweis Calculating Efficiency (Rev. A) 06.03.2020
Anwendungshinweis Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 24.08.2018
Auswahlhilfe Power Management Guide 2018 (Rev. R) 25.06.2018
Anwendungshinweis Understanding Thermal Dissipation and Design of a Heatsink 04.05.2011
Anwendungshinweis Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) 15.09.2010

Design und Entwicklung

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Evaluierungsplatine

TPS54618EVM-606 — Evaluierungsmodul für TPS54618 Synchron-Abwärts-SWIFT™-DC/DC-Wandler

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. (...)
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Simulationsmodell

TPS54618 TINA-TI Average Reference Design

SLVM551.TSC (217 KB) - TINA-TI-Referenzdesign
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TPS54618 TINA-TI Average Spice Model

SLVM550.ZIP (7 KB) - TINA-TI Spice-Modell
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TPS54618 TINA-TI Transient Reference Design

SLVM676.TSC (895 KB) - TINA-TI-Referenzdesign
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TPS54618 TINA-TI Transient Spice Model

SLVM675.ZIP (64 KB) - TINA-TI Spice-Modell
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Simulationsmodell

TPS54618 Unencrypted PSpice Average Model Package (Rev. A)

SLVM546A.ZIP (78 KB) - PSpice-Modell
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Simulationsmodell

TPS54618 Unencrypted PSpice Transient Model Package (Rev. B)

SLVM349B.ZIP (50 KB) - PSpice-Modell
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Berechnungstool

TPS54620DESIGN-CALC — TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator

The Design Calculator Plus Application Note (SLVA352A) Calculator Tool calculates the critical external component values for the TPS54620/TPS54622/TPS54521/TPS54320/TPS54618/TPS54418/TPS54318/TPS54218/TPS54319. The calculator includes power stage design, feature design and Type II and Type III (...)
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