Inicio Gestión de la energía AC/DC & DC/DC converters (integrated FET)
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Gestión de la energía
AC/DC & DC/DC converters (integrated FET)

TPS54418

ACTIVO

Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 4 A

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TPS62865 ACTIVO Convertidor reductor síncrono de entrada de 2.4 V a 5.5 V y 4 A en encapsulado QFN de 1.5 mm × 2.5 m Next generation of 4-A PoL buck.

TPS54418

ACTIVO
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Detalles del producto

Iout (max) (A) 4 Vin (min) (V) 2.95 Vin (max) (V) 6 Topology Buck Type Converter 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, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00035
Iout (max) (A) 4 Vin (min) (V) 2.95 Vin (max) (V) 6 Topology Buck Type Converter 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, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00035
WQFN (RTE) 16 9 mm² 3 x 3
  • Two, 30-mΩ (typical) MOSFETs for High-Efficiency at 4-A loads
  • Switching Frequency: 200 kHz to 2 MHz
  • Voltage Reference Over Temperature: 0.8 V ± 1%
  • Synchronizes to External Clock
  • Adjustable Soft Start/Sequencing
  • UV and OV Power-Good Output
  • Low Operating and Shutdown Quiescent Current
  • Safe Start-Up into Prebiased Output
  • Cycle-by-Cycle Current Limit, Thermal and Frequency Foldback Protection
  • Operating Junction Temperature Range: –40°C to 150°C
  • Thermally Enhanced 3 mm × 3 mm 16-pin WQFN Package
  • Create a Custom Design Using the TPS54418 With the WEBENCH® Power Designer
  • Two, 30-mΩ (typical) MOSFETs for High-Efficiency at 4-A loads
  • Switching Frequency: 200 kHz to 2 MHz
  • Voltage Reference Over Temperature: 0.8 V ± 1%
  • Synchronizes to External Clock
  • Adjustable Soft Start/Sequencing
  • UV and OV Power-Good Output
  • Low Operating and Shutdown Quiescent Current
  • Safe Start-Up into Prebiased Output
  • Cycle-by-Cycle Current Limit, Thermal and Frequency Foldback Protection
  • Operating Junction Temperature Range: –40°C to 150°C
  • Thermally Enhanced 3 mm × 3 mm 16-pin WQFN Package
  • Create a Custom Design Using the TPS54418 With the WEBENCH® Power Designer

TheTPS54418 device is a full-featured, 6-V, 4-A, synchronous, step-down current-mode converter with two integrated MOSFETs.

The TPS54418 device 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 device footprint with a small, 3 mm x 3 mm, thermally enhanced, QFN package.

The TPS54418 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.

Efficiency is maximized through the integrated 30-mΩ MOSFETs and a 350-µA typical supply current. Using the EN pin, shutdown supply current is reduced to 2 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 startup ramp is controlled by the soft-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 protects the device during an overcurrent condition.

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

TheTPS54418 device is a full-featured, 6-V, 4-A, synchronous, step-down current-mode converter with two integrated MOSFETs.

The TPS54418 device 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 device footprint with a small, 3 mm x 3 mm, thermally enhanced, QFN package.

The TPS54418 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.

Efficiency is maximized through the integrated 30-mΩ MOSFETs and a 350-µA typical supply current. Using the EN pin, shutdown supply current is reduced to 2 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 startup ramp is controlled by the soft-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 protects 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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Tipo Título Fecha
* Data sheet TPS54418 2.95-V to 6-V Input, 4-A Output, 2-MHz, Synchronous Step-Down SWIFT™ Converter datasheet (Rev. E) PDF | HTML 06 abr 2018
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25 mar 2024
Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 26 jul 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 abr 2021
Application note Calculating Efficiency (Rev. A) 06 mar 2020
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 24 ago 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Application note Not All Jitter Is Created Equal (Rev. A) 04 jul 2015
Application note Understanding Thermal Dissipation and Design of a Heatsink 04 may 2011
Application note Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) 15 sep 2010
EVM User's guide TPS54418EVM-375 4-A, SWIFT™ Regulator Evaluation 19 may 2009

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

TPS54418EVM-375 — Módulo de evaluación de convertidor SWIFT™ de 4 A, entrada de 3.3 V y salida de 1.8 V TPS54418

The TPS54418EVM-375 evaluation module is designed to demonstrate the small printed-circuit-board areas that may be achieved when designing with the TPS54418 regulator. The TPS54418 dc/dc converter is designed to provide up to a 4A output from an input voltage source of2.95V to 6V. Rated input (...)
Guía del usuario: PDF
No disponible en TI.com
Modelo de simulación

TPS54418 TINA-TI Average Reference Design

SLVM588.TSC (239 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS54418 TINA-TI Average Spice Model (Rev. A)

SLVM587A.ZIP (7 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS54418 Unencrypted PSpice Average Model Package (Rev. A)

SLVM584A.ZIP (22 KB) - PSpice Model
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Modelo de simulación

TPS54418 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM036B.ZIP (44 KB) - PSpice Model
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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

Productos y hardware compatibles

Productos
AC/DC & DC/DC converters (integrated FET)
TPS54218 — Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 2A TPS54318 — Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 3A TPS54319 — Convertidor reductor síncrono SWIFT™ de 2 MHz, 3 A, con entrada de 2.95 V a 6 V en encapsulado QFN d TPS54320 — Convertidor SWIFT™ reductor síncrono con entrada de 4.5V a 17V y 3A TPS54418 — Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 4 A TPS54521 — Convertidor reductor síncrono con entrada de 17 V y 5 A TPS54618 — Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 6 A TPS54620 — Convertidor reductor SWIFT™ síncrono de 4.5 V a 17 V y 6 A TPS54622 — Convertidor reductor SWIFT™ síncrono de 4.5 V a 17 V y 6 A con límite de corriente Hiccup TPS54821 — Convertidor reductor síncrono de 4.5 V a 17 V y 8 A con límite de corriente Hiccup TPS56921 — Convertidor reductor síncrono de 4.5 V a 17 V y 9 A, con control VID
Desarrollo de hardware
Placa de evaluación
TPS54418EVM-375 — Módulo de evaluación de convertidor SWIFT™ de 4 A, entrada de 3.3 V y salida de 1.8 V TPS54418 TPS54620EVM-374 — Módulo de evaluación de convertidor SWIFT™ de 6 A y 8 V a 17 V TPS54620
Software
Herramienta de cálculo
TPS54620DESIGN-CALC — Calculadora de diseño de convertidor reductor de modo actual TPS54620 y TPS54XXX
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Paquete Pasadores Descargar
WQFN (RTE) 16 Ver opciones
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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