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

TPS54426

ACTIVO

Convertidor reductor síncrono de 4A, entrada de 4.5 V a 18 V, con Eco-Mode™

Haga su pedido ahora
Hoja de datos

TPS54426

ACTIVO
Hoja de datos Haga su pedido ahora

Detalles del producto

Iout (max) (A) 4 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00085
Iout (max) (A) 4 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00085
HTSSOP (PWP) 14 32 mm² 5 x 6.4 VQFN (RSA) 16 16 mm² 4 x 4
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FET’s Optimized
    for Lower Duty Cycle Applications
    – 65 mΩ (High Side) and 55 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Power Good Output
  • Auto-Skip Eco-mode for High Efficiency at Light Load
  • APPLICATIONS
    • Wide Range of Applications for Low Voltage System
      • Digital TV Power Supply
      • High Definition Blu-ray Disc Players
      • Networking Home Terminal
      • Digital Set Top Box (STB)
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FET’s Optimized
    for Lower Duty Cycle Applications
    – 65 mΩ (High Side) and 55 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Power Good Output
  • Auto-Skip Eco-mode for High Efficiency at Light Load
  • APPLICATIONS
    • Wide Range of Applications for Low Voltage System
      • Digital TV Power Supply
      • High Definition Blu-ray Disc Players
      • Networking Home Terminal
      • Digital Set Top Box (STB)

The TPS54426 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54426 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54426 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54426 to maintain high efficiency during lighter load conditions. The TPS54426 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54426 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.

The TPS54426 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54426 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54426 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54426 to maintain high efficiency during lighter load conditions. The TPS54426 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54426 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.
open-in-new Buscar otro/a AC/DC & DC/DC converters (integrated FET)
Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Pin por pin con la misma funcionalidad que el dispositivo comparado
TPS54326 ACTIVO Convertidor reductor síncrono de 3A, entrada de 4.5 V a 18 V, con Eco-Mode™ This product offers lower current (3A).
TPS54429E ACTIVO Convertidor con modo DCAP2 reductor síncrono de 4.5 A, entrada de 7 V a 18 V, con Eco-Mode™ This product offers higher current (4.5A).
Funcionalidad similar a la del dispositivo comparado
TPS564242 ACTIVO Convertidor reductor síncrono de entrada de tensión de 3 V a 16 V, 4 A y ECO-Mode en encapsulado SOT This product has a smaller package with 1.2MHz switching frequency
NUEVO TPS564252 ACTIVO Tensión de entrada de 3 V a 17 V, modo ECO de 4 A, convertidor reductor síncrono This product has smaller package and power good feature

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 4
Tipo Título Fecha
* Data sheet 4.5V to 18V Input, 4-A Synchronous Step-Down SWIFT Converter with Eco-Mode datasheet (Rev. C) 25 jul 2011
User guide TPS54426 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 02 sep 2021
Selection guide SWIFT DC/DC Converters Selector Guide (Rev. G) 06 feb 2019
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 02 ene 2013

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

TPS54426EVM-608 — Módulo de evaluación para convertidor reductor síncrono con entrada de 4.5 V a 18 V, 4 A TPS54426

The TPS54426EVM-608 is a fully assembled and tested circuit for evaluating the TPS54426 Synchronous Step Down SWIFT Converter with Eco-Mode. The TPS54426EVM-608 operates from a 4.5V to 18V input and delivers a 1.05V output at 4 A.
No disponible en TI.com
Modelo de simulación

TPS54426 TINA-TI Transient Reference Design

SLVM357.TSC (213 KB) - TINA-TI Reference Design
Descargar
Modelo de simulación

TPS54426 TINA-TI Transient Spice Model

SLVM358.ZIP (40 KB) - TINA-TI Spice Model
Descargar
Modelo de simulación

TPS54426 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM097A.ZIP (41 KB) - PSpice Model
Descargar
Diseños de referencia

TIDA-010011 — Diseño de referencia de arquitectura de fuente de alimentación de alta eficiencia para módulo de pro

This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
Design guide: PDF
Esquema: PDF
Paquete Pasadores Descargar
HTSSOP (PWP) 14 Ver opciones
VQFN (RSA) 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

Ver todos los temas del foro en inglés

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. ​​​​​​​​​​​​​​

Videos