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

TPS54528

ACTIVO

Convertidor reductor síncrono de 5 A, entrada de 4.5 V a 18 V, con Eco-Mode™

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TPS54528

ACTIVO
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Detalles del producto

Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 650 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 6 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0009
Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 650 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 6 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0009
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • 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 6 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 65 mΩ (High Side) and 36 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 650-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Auto-Skip Eco-mode for High Efficiency at Light
    Load
  • 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 6 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 65 mΩ (High Side) and 36 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 650-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Auto-Skip Eco-mode for High Efficiency at Light
    Load

The TPS54528 is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54528 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54528 uses the D-CAP2 mode control that provides a 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 TPS54528 to maintain high efficiency during lighter load conditions. The TPS54528 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or 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 6 V. The device also features an adjustable soft start time. The TPS54528 is available in the 8-terminal DDA package, and designed to operate from –40°C to 85°C.

The TPS54528 is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54528 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54528 uses the D-CAP2 mode control that provides a 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 TPS54528 to maintain high efficiency during lighter load conditions. The TPS54528 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or 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 6 V. The device also features an adjustable soft start time. The TPS54528 is available in the 8-terminal DDA package, and designed to operate from –40°C to 85°C.
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Documentación técnica

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Tipo Título Fecha
* Data sheet 4.5 V to 18 V Input, 5-A Synchronous Step-Down Converter with Eco-mode(tm) datasheet (Rev. C) 24 feb 2014
EVM User's guide TPS54528 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 25 ago 2021
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Application note Optimize Output Filter on D-CAP2 for Stability Improvement 13 jun 2017
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 02 ene 2013

Diseño y desarrollo

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Placa de evaluación

TPS54528EVM-052 — Módulo de evaluación para convertidor reductor síncrono TPS54528 con modo D-CAP2 y salto automático

The TPS54528EVM-052 evaluation module is a fully assembled and tested circuit for evaluating the TPS54528 synchronous step-down DC-DC converter. The TPS54528EVM-052 operates from a 4.5V to 18V supply and provides a 1.05V output at 5A. The main control loop for the TPS54528EVM-052 uses D-CAP2 mode (...)
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Modelo de simulación

TPS54528 PSpice Transient Model

SLVMA25.ZIP (113 KB) - PSpice Model
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HSOIC (DDA) 8 Ver opciones
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Pedidos y calidad

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  • 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

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