TPS54231

ACTIVO

Convertidor reductor de 570 kHz, entrada de 3.5 V a 28 V, 2 A, con Eco-Mode™

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Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 570 Switching frequency (max) (kHz) 570 Features Enable, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25 Iq (typ) (µA) 75 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 570 Switching frequency (max) (kHz) 570 Features Enable, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25 Iq (typ) (µA) 75 Duty cycle (max) (%) 90
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 3.5- to 28-V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8 V
  • Integrated 80-mΩ High-Side MOSFET
    Supports up to 2 A Continuous Output
    Current
  • High Efficiency at Light Loads with a
    Pulse Skipping Eco-mode™
  • Fixed 570-kHz Switching Frequency
  • Typical 1-µA Shutdown Quiescent
    Current
  • Adjustable Slow-Start Limits Inrush
    Currents
  • Programmable UVLO Threshold
  • Overvoltage Transient Protection
  • Cycle-by-Cycle Current Limit, Frequency
    Fold Back and Thermal Shutdown Protection
  • Available in Easy-to-Use SOIC8 Package
  • Supported by WEBENCH® Software Tool
    (www.TI.com/WEBENCH)
  • APPLICATIONS
    • Consumer Applications such as Set-Top Boxes,
      CPE Equipment, LCD Displays, Peripherals, and
      Battery Chargers
    • Industrial and Car Audio Power Supplies
    • 5-V, 12-V and 24-V Distributed Power Systems

WEBENCH Is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners

  • 3.5- to 28-V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8 V
  • Integrated 80-mΩ High-Side MOSFET
    Supports up to 2 A Continuous Output
    Current
  • High Efficiency at Light Loads with a
    Pulse Skipping Eco-mode™
  • Fixed 570-kHz Switching Frequency
  • Typical 1-µA Shutdown Quiescent
    Current
  • Adjustable Slow-Start Limits Inrush
    Currents
  • Programmable UVLO Threshold
  • Overvoltage Transient Protection
  • Cycle-by-Cycle Current Limit, Frequency
    Fold Back and Thermal Shutdown Protection
  • Available in Easy-to-Use SOIC8 Package
  • Supported by WEBENCH® Software Tool
    (www.TI.com/WEBENCH)
  • APPLICATIONS
    • Consumer Applications such as Set-Top Boxes,
      CPE Equipment, LCD Displays, Peripherals, and
      Battery Chargers
    • Industrial and Car Audio Power Supplies
    • 5-V, 12-V and 24-V Distributed Power Systems

WEBENCH Is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners

The TPS54231 device is a 2-V, 2-A non-synchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54231 device is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.

The TPS54231 device is a 2-V, 2-A non-synchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54231 device is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS54231 2-A, 28-V Input, Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. D) PDF | HTML 24 oct 2014
User guide TPS54231 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 26 oct 2021
Application note Low Dropout Operation in a Buck Converter (Rev. A) 01 abr 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Application note 800VA Pure Sine Wave Inverter's Reference Design (Rev. A) PDF | HTML 01 ago 2017
Application note Using TPS54335A to Create an Inverting Power Supply (Rev. A) 19 jul 2017
Application note Understanding Eco-mode(TM) Operation 05 dic 2016
Application note Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) 26 oct 2012
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

TPS54231EVM-372 — Módulo de evaluación de 2 A, salida de 3.3 V, entrada de 28 V TPS54231

The TPS54231EVM-372 is a fully assembled and tested circuit for evaluating the TPS54231 synchronous step-down SWIFT™ converter. The EVM converts a 7-V to 28-V input voltage to a regulated 3.3-V output voltage that delivers up to 2 A. The switching frequency is internally set at a nominal 570 (...)

Guía del usuario: PDF | HTML
Modelo de simulación

TPS54231 TINA-TI Transient Reference Design

SLUM343.TSC (152 KB) - TINA-TI Reference Design
Modelo de simulación

TPS54231 TINA-TI Transient Spice Model

SLUM342.ZIP (18 KB) - TINA-TI Spice Model
Modelo de simulación

TPS54231 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM255A.ZIP (40 KB) - PSpice Model
Herramienta de cálculo

SWIFTINV-CALC SWIFT™ Converter Inverting Buck/Boost Calculator

The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
TPS54040 Convertidor reductor con entrada de 3.5 V a 42 V y 0.5 A con Eco-Mode TPS54060 Convertidor reductor con entrada de 3.5 V a 60 V y 0.5 A con Eco-Mode TPS54060-EP Convertidor CC/CC reductor de 60 V y 0.5 A TPS54060-EP con Eco-Mode TPS54140 Convertidor reductor con entrada de 3.5 V a 42 V y 1.5 A con Eco-Mode TPS54160 Convertidor reductor con entrada de 3.5 V a 60 V y 1.5 A con Eco-Mode TPS54231 Convertidor reductor de 570 kHz, entrada de 3.5 V a 28 V, 2 A, con Eco-Mode™ TPS54232 Convertidor reductor de 2 A, entrada de 3,5 V a 28 V, con Eco-Mode TPS54233 Convertidor reductor de 300 kHz, entrada de 3.5 V a 28 V, 2 A, con Eco-Mode TPS54260 Convertidor reductor con entrada de 3.5 V a 60 V y 2.5A con Eco-Mode TPS54331 Convertidor reductor con entrada de 3.5 V a 28 V, 3 A y 570 kHz con Eco-Mode TPS54332 Convertidor reductor con entrada de 3.5 V a 28 V y 3.5 A, 1 MHz con Eco-Mode TPS54340 Convertidor CC/CC reductor de 3.5 A, entrada de 42 V, con Eco-Mode™ TPS54360 Convertidor reductor con entrada de 4.5 V a 60 V y 3.5 A con Eco-Mode TPS54360B Convertidor CC/CC reductor de 3.5 A, entrada de 60 V, con Eco-Mode™ TPS54540 Convertidor CC/CC reductor de 5 A, entrada de 42 V, con Eco-Mode TPS54560 Convertidor reductor con entrada de 4.5 V a 60 V y 5 A con Eco-Mode TPS54560B Convertidor CC/CC reductor de 5 A, entrada de 4.5 V a 60 V, con Eco-Mode™ TPS54561 Convertidor CC-CC reductor con entrada de 4.5 V a 60 V y 5 A con inicio suave y Eco-Mode™
Herramienta de cálculo

SWIFTPOSNEG-CALC TPS54160 Pos/Neg Calculation Utility Download

The SWIFTPosNeg-CALC Excel sheet is a complementary worksheet to the SLVA369 application note.

This worksheet is used to calculate the external components needed to create a dual output (i.e. positive and negative) power supply using a step-down switching regulator and catalog off the shelf coupled (...)

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
TPS54040 Convertidor reductor con entrada de 3.5 V a 42 V y 0.5 A con Eco-Mode TPS54060 Convertidor reductor con entrada de 3.5 V a 60 V y 0.5 A con Eco-Mode TPS54060-EP Convertidor CC/CC reductor de 60 V y 0.5 A TPS54060-EP con Eco-Mode TPS54140 Convertidor reductor con entrada de 3.5 V a 42 V y 1.5 A con Eco-Mode TPS54160 Convertidor reductor con entrada de 3.5 V a 60 V y 1.5 A con Eco-Mode TPS54231 Convertidor reductor de 570 kHz, entrada de 3.5 V a 28 V, 2 A, con Eco-Mode™ TPS54232 Convertidor reductor de 2 A, entrada de 3,5 V a 28 V, con Eco-Mode TPS54233 Convertidor reductor de 300 kHz, entrada de 3.5 V a 28 V, 2 A, con Eco-Mode TPS54240 Convertidor reductor con entrada de 3.5 V a 42V y 2.5A con Eco-Mode TPS54260 Convertidor reductor con entrada de 3.5 V a 60 V y 2.5A con Eco-Mode TPS54331 Convertidor reductor con entrada de 3.5 V a 28 V, 3 A y 570 kHz con Eco-Mode TPS54332 Convertidor reductor con entrada de 3.5 V a 28 V y 3.5 A, 1 MHz con Eco-Mode
Opciones de descarga
Diseños de referencia

TIDA-010055 — Diseño de referencia de arquitectura de alimentación no aislada con diagnóstico para módulos de relé

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDEP0036 — Diseño de referencia con TMS320C6657 para implementar una solución de códec OPUS eficaz

The TIDEP0036 reference design provides an example of the ease of running TI optimized Opus encoder/decoder on the TMS320C6657 device. Since Opus supports a a wide range of bit rates, frame sizes and sampling rates, all with low delay, it has applicability for voice communications, networked audio (...)
Design guide: PDF
Esquema: PDF
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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

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