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TPS54218

ACTIVO

Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 2A

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TPS628502 ACTIVO Convertidor reductor de frecuencia ajustable de 2.7 V a 6 V y 2 A en encapsulado SOT583 Smaller solution size and high accuracy.

Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 2.95 Vin (max) (V) 6 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 Iq (typ) (µA) 350 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 2.95 Vin (max) (V) 6 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 Iq (typ) (µA) 350 Duty cycle (max) (%) 98
WQFN (RTE) 16 9 mm² 3 x 3
  • Two, 30-mΩ (typical) MOSFETs for high-efficiency at 2-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 TPS54218 with the WEBENCH® Power Designer
  • Two, 30-mΩ (typical) MOSFETs for high-efficiency at 2-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 TPS54218 with the WEBENCH® Power Designer

TheTPS54218 device is a full-featured, 6-V, 2-A, synchronous, step-down current-mode converter with two integrated MOSFETs.

The TPS54218 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 × 3-mm, thermally-enhanced QFN package.

The TPS54218 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.

TheTPS54218 device is a full-featured, 6-V, 2-A, synchronous, step-down current-mode converter with two integrated MOSFETs.

The TPS54218 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 × 3-mm, thermally-enhanced QFN package.

The TPS54218 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 TPS54218 2.95-V to 6-V Input, 2-A Output, 2-MHz, Synchronous Step-Down SWIFT™ Converter datasheet (Rev. F) PDF | HTML 04 may 2020
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
Application note Improving Efficiency at Higher Loads with High Switching Frequencies PDF | HTML 16 jun 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 abr 2021
Application note Calculating Efficiency (Rev. A) 06 mar 2020
Selection guide SWIFT DC/DC Converters Selector Guide (Rev. G) 06 feb 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Technical article How to get started with current sense amplifiers – part 2 PDF | HTML 26 may 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
User guide TPS54218EVM-511 2-A, SWIFT Regulator Evaluation Module 23 sep 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

TPS54218EVM-511 — Módulo de evaluación de convertidor SWIFT™ de 2 A, entrada de 6 V y salida de 1.8 V TPS54218

The TPS54218EVM-511 evaluation module is designed to demonstrate the small printed-circuit-board areas that may be achieved when designing with the TPS54218 regulator. The TPS54218EVM-511 is designed to provide up to 2A output current, from an input voltage of 3V to 6V (Vin start= 3.1V). The (...)
Guía del usuario: PDF
Modelo de simulación

TPS54218 PSpice Average Model

SLVM507.ZIP (25 KB) - PSpice Model
Modelo de simulación

TPS54218 PSpice Transient Model (Rev. B)

SLIM220B.ZIP (118 KB) - PSpice Model
Modelo de simulación

TPS54218 SIMPLIS Transient and Average Model

SLVMD99.ZIP (876 KB) - SIMPLIS Model
Modelo de simulación

TPS54218 TINA-TI Average Reference Design

SLVM531.TSC (800 KB) - TINA-TI Reference Design
Modelo de simulación

TPS54218 TINA-TI Average Spice Model

SLVM530.ZIP (8 KB) - TINA-TI Spice Model
Modelo de simulación

TPS54218 TINA-TI Transient Reference Design

SLVM139.TSC (193 KB) - TINA-TI Reference Design
Modelo de simulación

TPS54218 TINA-TI Transient Spice Model

SLVM138.ZIP (62 KB) - TINA-TI Spice Model
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
Convertidores de CA/CC y CC/CC (FET integrado)
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
Diseños de referencia

TIDA-010057 — Diseño de referencia de la fuente de alimentación de la sonda inteligente de ultrasonido

Significant technological advancements and high degree of integration in Medical imaging, especially hand-held ultrasound smart probes, are pushing engineers to come up with highly-efficient, noise immune power solutions in a small size. This reference design documents end to end power and data (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

PMP9166 — Diseño de referencia de reductor-elevador síncrono con entrada de 3.3 V y salida de -0.5 V/0.9 A

This reference design uses the TPS54218 in a synchronous buck-boost configuration to generate a negative 0.5V output from a 3.3V input. Switching at 1MHz, the total solution size is extremely compact. An external LM4040 reference provides a precision pull-up voltage and is necessary to regulate the (...)
Test report: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN (RTE) 16 Ultra Librarian

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

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

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