Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)

TPS54320

ACTIVO

Convertidor SWIFT™ reductor síncrono con entrada de 4.5 V a 17 V y 3 A

Se encuentra disponible una versión más nueva de este producto

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS543320 ACTIVO Convertidor reductor síncrono SWIFT™ de 3 A con entrada de 4 V a 18 V Higher efficiency in a smaller solution size

Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1200 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 15 Iq (typ) (µA) 600 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1200 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 15 Iq (typ) (µA) 600 Duty cycle (max) (%) 98
VQFN (RHL) 14 12.25 mm² 3.5 x 3.5
  • Integrated 57-mΩ / 50-mΩ MOSFETs
  • Split Power Rail: 1.6 to 17 V on PVIN
  • 200-kHz to 1.2-MHz Switching Frequency
  • Synchronizes to External Clock
  • 0.8-V Voltage Reference With ±1% Accuracy
  • Low 2-µA Shutdown Quiescent Current
  • Hiccup Overcurrent Protection
  • Monotonic Start-Up into Prebiased Outputs
  • –40°C to 150°C Operating Junction Temperature Range
  • Pin-to-Pin Compatible With the TPS54620
  • Adjustable Slow Start/Power Sequencing
  • Power Good Output for Undervoltage and Overvoltage Monitoring
  • Adjustable Input Undervoltage Lockout (UVLO)
  • Supported by SwitcherPro™ Software Tool
  • For SWIFT™ Documentation and SwitcherPro, Visit www.ti.com/swift
  • Create a Custom Design Using the TPS54320 With the WEBENCH® Power Designer
  • Integrated 57-mΩ / 50-mΩ MOSFETs
  • Split Power Rail: 1.6 to 17 V on PVIN
  • 200-kHz to 1.2-MHz Switching Frequency
  • Synchronizes to External Clock
  • 0.8-V Voltage Reference With ±1% Accuracy
  • Low 2-µA Shutdown Quiescent Current
  • Hiccup Overcurrent Protection
  • Monotonic Start-Up into Prebiased Outputs
  • –40°C to 150°C Operating Junction Temperature Range
  • Pin-to-Pin Compatible With the TPS54620
  • Adjustable Slow Start/Power Sequencing
  • Power Good Output for Undervoltage and Overvoltage Monitoring
  • Adjustable Input Undervoltage Lockout (UVLO)
  • Supported by SwitcherPro™ Software Tool
  • For SWIFT™ Documentation and SwitcherPro, Visit www.ti.com/swift
  • Create a Custom Design Using the TPS54320 With the WEBENCH® Power Designer

The TPS54320 is a full-featured 17-V, 3-A synchronous step-down converter which is optimized for small designs through high efficiency and integrated high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing footprint of the inductor.

The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a stand-alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins.

Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection is triggered if the overcurrent condition has persisted for longer than the preset time. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature. The TPS54320 is available in a 14-pin, 3.5-mm × 3.5-mm VQFN, thermally enhanced package.

The TPS54320 is a full-featured 17-V, 3-A synchronous step-down converter which is optimized for small designs through high efficiency and integrated high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing footprint of the inductor.

The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a stand-alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins.

Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection is triggered if the overcurrent condition has persisted for longer than the preset time. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature. The TPS54320 is available in a 14-pin, 3.5-mm × 3.5-mm VQFN, thermally enhanced package.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS54320 4.5- to 17-V Input, 3-A Synchronous Step Down SWIFT™ Converter datasheet (Rev. C) 16 abr 2018
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25 mar 2024
Application note Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part I: Filter Design for Out PDF | HTML 27 feb 2024
Application note Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part II: Hybrid Sense Network PDF | HTML 27 feb 2024
User guide TPS54320 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 11 oct 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 abr 2021
Application note Calculating Efficiency (Rev. A) 06 mar 2020
Application note Minimizing Output Ripple During Startup (Rev. A) 20 may 2019
Selection guide SWIFT DC/DC Converters Selector Guide (Rev. G) 06 feb 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Application note Minimizing Output Ripple During Startup 22 jun 2017
White paper Minimum Power Specifications for High-Performance ADC Power-Supply Designs 31 mar 2016
Technical article Designing a power supply solution for pipeline ADCs – Part 2 PDF | HTML 04 sep 2015
Application note Output Ripple Voltage for Buck Switching Regulator (Rev. A) 13 oct 2014
Application note Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co 11 jul 2014
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

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

TPS54320EVM-513 — Módulo de evaluación para convertidor SWIFT™ reductor síncrono con entrada de 4.5 V a 17 V y salida

The TPS54320EVM-513 is a fully assembled and tested circuit for evaluating the TPS54320 synchronous step-down SWIFT™ converter. The EVM converts a 8-V to 17-V input voltage to a regulated 3.3-V output voltage that delivers up to 3 A. The switching frequency is externally set at a nominal (...)

Guía del usuario: PDF | HTML
Modelo de simulación

TPS54320 TINA-TI Average Reference Design

SLVMA70.TSC (144 KB) - TINA-TI Reference Design
Modelo de simulación

TPS54320 TINA-TI Average Spice Model

SLVMA69.ZIP (7 KB) - TINA-TI Spice Model
Modelo de simulación

TPS54320 TINA-TI Transient Reference Design

SLVM678.TSC (660 KB) - TINA-TI Reference Design
Modelo de simulación

TPS54320 TINA-TI Transient Spice Model

SLVM677.ZIP (51 KB) - TINA-TI Spice Model
Modelo de simulación

TPS54320 Unencrypted PSpice Average Model Package (Rev. A)

SLVM896A.ZIP (29 KB) - PSpice Model
Modelo de simulación

TPS54320 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM451A.ZIP (77 KB) - PSpice Model
Herramienta de cálculo

SLVC439 Synchronous Inverting Buck Boost Design Calculator

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
TPS54061 Convertidor reductor síncrono con entrada de 4.7 V a 60 V y 200 mA con IQ baja TPS54062 Convertidor reductor síncrono con entrada de 4.7 V a 60 V y 50mA con IQ baja TPS54320 Convertidor SWIFT™ reductor síncrono con entrada de 4.5 V a 17 V y 3 A TPS54620 Convertidor reductor SWIFT™ síncrono de 4.5 V a 17 V y 6 A
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 4.5 V a 17 V y 3 A 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

TIDEP0011 — Solución de potencia para núcleo C667x AVS DSP (CVDD) con escala de tensión dinámica

This reference design aims to supply the AVS core supply (CVDD) in the Keystone Multicore DSPs, mainly the C66x series. The C66x series uses SmartReflex technology to enable the DSP to control its supply voltage. In order to meet this requirement, this design combines a Synchronous Buck Converter (...)
Test report: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RHL) 14 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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