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TPS54618

ACTIVO

Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 6 A

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TPS62867 ACTIVO Convertidor reductor síncrono de entrada de 2.4 V a 5.5 V y 6 A en encapsulado QFN de 1.5 mm × 2.5 m Newer generation of 6-A devices with <30mm² total BOM size.

Detalles del producto

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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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS54618 2.95-V to 6-V, 6-A, Synchronous Step-Down SWIFT Converter datasheet (Rev. F) PDF | HTML 24/05/2019
Nota sobre la aplicación Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25/03/2024
Nota sobre la aplicación Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 26/07/2021
Guía de selección Buck Converter Quick Reference Guide (Rev. B) 8/04/2021
Nota sobre la aplicación Calculating Efficiency (Rev. A) 6/03/2020
Nota sobre la aplicación Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 24/08/2018
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Nota sobre la aplicación Understanding Thermal Dissipation and Design of a Heatsink 4/05/2011
Nota sobre la aplicación Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) 15/09/2010

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPS54618EVM-606 — Módulo de evaluación para convertidor CC/CC SWIFT™ reductor síncrono TPS54618

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. (...)
Guía del usuario: PDF
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Modelo de simulación

TPS54618 TINA-TI Average Reference Design

SLVM551.TSC (217 KB) - Diseño de referencia TINA-TI
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TPS54618 TINA-TI Average Spice Model

SLVM550.ZIP (7 KB) - Modelo TINA-TI Spice
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Modelo de simulación

TPS54618 TINA-TI Transient Reference Design

SLVM676.TSC (895 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

TPS54618 TINA-TI Transient Spice Model

SLVM675.ZIP (64 KB) - Modelo TINA-TI Spice
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Modelo de simulación

TPS54618 Unencrypted PSpice Average Model Package (Rev. A)

SLVM546A.ZIP (78 KB) - Modelo PSpice
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Modelo de simulación

TPS54618 Unencrypted PSpice Transient Model Package (Rev. B)

SLVM349B.ZIP (50 KB) - Modelo PSpice
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Herramienta de cálculo

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 (...)
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
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Pedidos y calidad

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