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TPS54239E

ACTIVO

Convertidor reductor síncrono de 2 A, entrada de 4.5 V a 23 V, con Eco-Mode

Se encuentra disponible una versión más nueva de este producto

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Funcionalidad similar a la del dispositivo comparado
TPS62932 ACTIVO Convertidor reductor síncrono con entrada de 3.8 V a 30 V, 2 A, 200 kHz a 2.2 MHz y bajo IQ en encap Wider range of Vin and Fsw, with smaller size.

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) 23 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (µA) 600 Duty cycle (max) (%) 90
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) 23 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (µA) 600 Duty cycle (max) (%) 90
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 23 V
  • Output Voltage Range: 0.76 V to 7.0 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 140 mΩ (High Side) and 70 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 600-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 23 V
  • Output Voltage Range: 0.76 V to 7.0 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 140 mΩ (High Side) and 70 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 600-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Auto-Skip Eco-mode for High Efficiency at Light Load

The TPS54239E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54239E 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 TPS54239E 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 TPS54239 to maintain high efficiency during lighter load conditions. The TPS54239E 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 23-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54239E is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.

The TPS54239E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54239E 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 TPS54239E 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 TPS54239 to maintain high efficiency during lighter load conditions. The TPS54239E 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 23-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54239E is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.

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Pin por pin con la misma funcionalidad que el dispositivo comparado
TPS54229E ACTIVO Convertidor reductor síncrono de 2 A, entrada de 4.5 V a 18V, con Eco-Mode Pin-to-pin compatible lower current part (2 A).
TPS54239 ACTIVO Convertidor reductor síncrono de 2 A, entrada de 4.5 V a 23 V, con modo D-CAP2 This product has FCCM.
TPS54339E ACTIVO Convertidor reductor síncrono de 3 A con entrada de 4.5 V a 23 V y modo D-CAP2 y eficiencia de carga Pin-to-pin compatible higher current part (3 A).

Documentación técnica

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Tipo Título Fecha
* Data sheet 4.5 V to 23 V Input, 2-A Synchronous Step-Down SWIFTTM Converter with ECO-ModeTM datasheet 07 ene 2013
User guide TPS54239E Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 18 oct 2021

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.

Modelo de simulación

TPS54239E PSpice Transient Model

SLVMAV1.ZIP (193 KB) - PSpice Model
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HSOIC (DDA) 8 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

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