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TPS54240-Q1

ACTIVO

Convertidor buck para automoción de 2.5 A, de 3.5 V a 42 V, con Eco-Mode™

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Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
LM65625-Q1 ACTIVO Convertidor buck automotriz de 3 V a 65 V y 2.5 A optimizado para densidad de potencia y baja EMI Better efficiency and smaller solution size

TPS54240-Q1

ACTIVO
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Detalles del producto

Rating Automotive Topology Buck Iout (max) (A) 2.5 Vin (max) (V) 42 Vin (min) (V) 3.5 Vout (max) (V) 39 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000138 Duty cycle (max) (%) 100
Rating Automotive Topology Buck Iout (max) (A) 2.5 Vin (max) (V) 42 Vin (min) (V) 3.5 Vout (max) (V) 39 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000138 Duty cycle (max) (%) 100
HVSSOP (DGQ) 10 14.7 mm² (3 mm × 4.9 mm) VSON (DRC) 10 9 mm² (3 mm × 3 mm)
  • Qualified for Automotive Applications
  • AEC Q100 Qualified With the Following Results:
    • Device Temperature Grade 1:
      –40°C to 125°C Ambient Operating
      Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C6
  • 3.5-V to 42-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads With a
    Pulse-Skipping Eco-mode Control Scheme
  • 138-µA Operating Quiescent Current
  • 1.3-µA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power-Good Output
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • MSOP10 PowerPAD Package
  • Supported by SwitcherPro Software Tool
    (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
  • For SWIFT Documentation, See the TI Web site at http://www.ti.com/swift
  • Qualified for Automotive Applications
  • AEC Q100 Qualified With the Following Results:
    • Device Temperature Grade 1:
      –40°C to 125°C Ambient Operating
      Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C6
  • 3.5-V to 42-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads With a
    Pulse-Skipping Eco-mode Control Scheme
  • 138-µA Operating Quiescent Current
  • 1.3-µA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power-Good Output
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • MSOP10 PowerPAD Package
  • Supported by SwitcherPro Software Tool
    (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
  • For SWIFT Documentation, See the TI Web site at http://www.ti.com/swift

The TPS54240-Q1 device is a 42-V, 2.5-A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load, regulated-output supply current to 138 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA when the enable pin is low.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage start-up ramp is controlled by the slow-start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 94% to 107% of its nominal voltage.

A wide switching-frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.

The TPS54240-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD package.

The TPS54240-Q1 device is a 42-V, 2.5-A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load, regulated-output supply current to 138 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA when the enable pin is low.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage start-up ramp is controlled by the slow-start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 94% to 107% of its nominal voltage.

A wide switching-frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.

The TPS54240-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD package.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos 3.5 V to 42 V STEP DOWN SWIFT DC/DC CONVERTER WITH ECO-MODE datasheet (Rev. B) 5/09/2013
Nota sobre la aplicación Passing CISPR25 Radiated Emissions Using the TPS54160-Q1 (Rev. A) 23/05/2019
Nota sobre la aplicación Understanding Eco-mode(TM) Operation 5/12/2016
Nota sobre la aplicación Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter 8/12/2015
Nota sobre la aplicación TPS54xx0-Q1 and TPS57xx0-Q1 Pin Open and Short Test Results (Rev. B) 3/11/2015
Nota sobre la aplicación Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications 5/03/2015

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

TPS54240EVM-605 — Módulo de evaluación de convertidor de 2.5 A SWIFT™

The TPS54240 dc/dc converter is designed to provide up to a 2.5-A output from an input voltage source of 3.5V to 40V. Rated input voltage and output current range for the evaluation module are given in Table 1 of the User Guide. This evaluation module is designed to demonstrate the small, (...)
Guía del usuario: PDF
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Modelo de simulación

TPS54240 PSpice Transient Model (Rev. A)

SLIM265B (40 KB) - Modelo PSpice
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Modelo de simulación

TPS54240 TINA-TI Transient Reference Design

SLVM271.TSC (160 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

TPS54240 TINA-TI Transient Spice Model

SLVM272.ZIP (51 KB) - Modelo TINA-TI Spice
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Herramienta de cálculo

TPS54-57XX0-CALC — TPS54xx0-Q1 and TPS57xx0-Q1 Design Calculation Tool

This worksheet is designed for use with Microsoft Excel 2002 or later. It intends to assist circuit designers in their day-to-day calculations

This worksheet includes two sections:

  • Recommendations: Calculates the maximum requirements for different components to guarantee the input voltage, output (...)
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Diseño de referencia

TIDA-00346 — Solución de fuente de alimentación rentable para sistemas ADAS basados en procesadores de aplicacion

The TIDA-00346 design provides the power supply rails necessary for typical  entry-level application processors in automotive advanced driver assistance systems (ADAS) applications.  The design uses several individual DC/DC voltage regulators as well as load switches and linear regulators (...)

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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HVSSOP (DGQ) 10 Ultra Librarian
VSON (DRC) 10 Ultra Librarian
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