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

TPS54294

ACTIVO

Convertidor reductor síncrono con entrada de 4.5 V a 18 V, salida doble de 2 A, con inicio suave fij

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TPS54294

ACTIVO
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Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Soft Start Fixed, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (µA) 1300 Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Soft Start Fixed, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (µA) 1300 Duty cycle (max) (%) 85
HTSSOP (PWP) 16 32 mm² 5 x 6.4 VQFN (RSA) 16 16 mm² 4 x 4
  • D-CAP2 Control Mode
    • Fast Transient Response
    • No External Parts Required For Loop
      Compensation
    • Compatible with Ceramic Output
      Capacitors
  • Wide Input Voltage Range : 4.5 V to 18 V
  • Output Voltage Range : 0.76V to 7.0V
  • Highly Efficient Integrated FETs Optimized
    for Low Duty Cycle Applications
    • 150 mΩ (High Side) and 100 mΩ
      (Low Side)
  • High Initial Reference Accuracy
  • Low-Side rDS(on) Loss-Less Current
    Sensing
  • Fixed Soft Start : 1.0ms
  • Non-Sinking Pre-Biased Soft Start
  • Powergood
  • 700 kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Limit Control
  • OCL/OVP/UVP/UVLO/TSD Protections
  • Adaptive Gate Drivers with Integrated Boost PMOS Switch
  • OCP Constant Due To Thermally Compensated rDS(on)
    with 4000ppm/℃
  • 16-Pin HTSSOP, 16-Pin VQFN
  • Auto-Skip Eco-mode — for High Efficiency at Light Load
  • D-CAP2 Control Mode
    • Fast Transient Response
    • No External Parts Required For Loop
      Compensation
    • Compatible with Ceramic Output
      Capacitors
  • Wide Input Voltage Range : 4.5 V to 18 V
  • Output Voltage Range : 0.76V to 7.0V
  • Highly Efficient Integrated FETs Optimized
    for Low Duty Cycle Applications
    • 150 mΩ (High Side) and 100 mΩ
      (Low Side)
  • High Initial Reference Accuracy
  • Low-Side rDS(on) Loss-Less Current
    Sensing
  • Fixed Soft Start : 1.0ms
  • Non-Sinking Pre-Biased Soft Start
  • Powergood
  • 700 kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Limit Control
  • OCL/OVP/UVP/UVLO/TSD Protections
  • Adaptive Gate Drivers with Integrated Boost PMOS Switch
  • OCP Constant Due To Thermally Compensated rDS(on)
    with 4000ppm/℃
  • 16-Pin HTSSOP, 16-Pin VQFN
  • Auto-Skip Eco-mode — for High Efficiency at Light Load

The TPS54294 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54294 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54294 use 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 TPS54294 to maintain high efficiency during lighter load conditions. The TPS54294 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.

The TPS54294 is available in a 4.4mm × 5.0mm 16-pin TSSOP (PWP) package, and 4mm x 4mm 16-pin VQFN (RSA) package specified for an ambient temperature range from –40°C to 85°C.

The TPS54294 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54294 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54294 use 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 TPS54294 to maintain high efficiency during lighter load conditions. The TPS54294 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.

The TPS54294 is available in a 4.4mm × 5.0mm 16-pin TSSOP (PWP) package, and 4mm x 4mm 16-pin VQFN (RSA) package specified for an ambient temperature range from –40°C to 85°C.
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Documentación técnica

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Tipo Título Fecha
* Data sheet 2A Dual Channel Synchronous Step-Down Switcher With Integrated FETs datasheet (Rev. D) 03 sep 2013
User guide TPS54294 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 12 oct 2021
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
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

TPS54294EVM-057 — Módulo de evaluación para controlador reductor síncrono TPS54294

The TPS54294EVM-057 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS54294 Dual 2A Output, Synchronous Step-Down SWIFT Converter. The EVM operates from a 4.5V to 18V input and generates output voltages of 1.5V and 3.3V with a switch current limit of 2A minimum.
Guía del usuario: PDF | HTML
No disponible en TI.com
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 16 Ultra Librarian
VQFN (RSA) 16 Ultra Librarian
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

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