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TPS51397A

ACTIVO

Regulador reductor síncrono de 10 A y entrada de 4.5 V a 24 V

Se encuentra disponible una versión más nueva de este producto

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS51386 ACTIVO Entrada de 4.5 V a 24 V, convertidor reductor síncrono de 8 A  Higher efficiency and lower IQ in a smaller package with a lower current

Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 10 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Enable, Light-load efficiency, Output discharge, Overcurrent protection, Power good, Soft-start adjustable, Synchronous rectification, UVLO fixed Control mode D-CAP3 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 800 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 110 Duty cycle (max) (%) 91 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 10 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Enable, Light-load efficiency, Output discharge, Overcurrent protection, Power good, Soft-start adjustable, Synchronous rectification, UVLO fixed Control mode D-CAP3 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 800 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 110 Duty cycle (max) (%) 91 Type Converter
VQFN-HR (RJE) 20 9 mm² 3 x 3
  • Input voltage range: 4.5 V to 24 V
  • Output voltage range: 0.6 V to 5.5 V
  • Supports 10-A continuous output current
  • D-CAP3™ architecture control for fast transient response
  • 0.6 V ± 1% feedback voltage accuracy (25°C)
  • Integrated 17-mΩ and 5.9-mΩ FETs
  • ULQ™ operation (110 µA) to enable long battery life during system standby
  • Selectable Eco-mode™ and Out-of-Audio™ by MODE pin
  • 500-kHz and 800-kHz selectable switching frequency
  • Adjustable soft-start time with default internal 1.2 ms
  • Large duty cycle operation
  • Integrated power-good indicator
  • Built-in output discharge function
  • Cycle-by-cycle overcurrent protection
  • Latched output OV and UV protections
  • Non-latched UVLO and OT protections
  • -40°C to 125°C Operating junction temperature
  • 20-pin 3.0-mm × 3.0-mm HotRod™ VQFN package
  • Pin-to-pin compatible with 12-A TPS56C230
  • Create a custom design using the TPS51397A with the WEBENCH® Power Designer
  • Input voltage range: 4.5 V to 24 V
  • Output voltage range: 0.6 V to 5.5 V
  • Supports 10-A continuous output current
  • D-CAP3™ architecture control for fast transient response
  • 0.6 V ± 1% feedback voltage accuracy (25°C)
  • Integrated 17-mΩ and 5.9-mΩ FETs
  • ULQ™ operation (110 µA) to enable long battery life during system standby
  • Selectable Eco-mode™ and Out-of-Audio™ by MODE pin
  • 500-kHz and 800-kHz selectable switching frequency
  • Adjustable soft-start time with default internal 1.2 ms
  • Large duty cycle operation
  • Integrated power-good indicator
  • Built-in output discharge function
  • Cycle-by-cycle overcurrent protection
  • Latched output OV and UV protections
  • Non-latched UVLO and OT protections
  • -40°C to 125°C Operating junction temperature
  • 20-pin 3.0-mm × 3.0-mm HotRod™ VQFN package
  • Pin-to-pin compatible with 12-A TPS56C230
  • Create a custom design using the TPS51397A with the WEBENCH® Power Designer

The device is a monolithic 10-A synchronous buck converter with integrated MOSFETs that enable high efficiency and offers ease-of-use with minimum external component count for space-conscious power systems.

The TPS51397A employs D-CAP3™ control that provides fast transient response and excellent line and load regulation with internal compensation. The ULQ™ (Ultra Low Quiescent) feature is extremely beneficial for long battery life in low power operation. The large duty operation greatly improves the load transient performance when input voltage is low.

The MODE pin can be used to set Eco-mode™ or Out-of-Audio™ (OOA) mode for light-load operation and 500-kHz or 800-kHz switching frequency. The Eco-mode™ maintains high efficiency during light load operation. The OOA mode keeps the switching frequency above audible frequency with minimum reduction in efficiency.

The device supports both internal and external soft-start options. It has an internal fixed soft-start time of 1.2 ms. If the application needs a longer soft-start time, the external SS pin can be connected to an external capacitor.

The TPS51397A integrates a power-good indicator and provides an output discharge function. It provides complete protection including OVP, UVP, OCP, OTP, and UVLO. The device is available in a 20-pin 3.0-mm x 3.0-mm HotRod™ package and the junction temperature is specified from –40°C to 125°C.

The device is a monolithic 10-A synchronous buck converter with integrated MOSFETs that enable high efficiency and offers ease-of-use with minimum external component count for space-conscious power systems.

The TPS51397A employs D-CAP3™ control that provides fast transient response and excellent line and load regulation with internal compensation. The ULQ™ (Ultra Low Quiescent) feature is extremely beneficial for long battery life in low power operation. The large duty operation greatly improves the load transient performance when input voltage is low.

The MODE pin can be used to set Eco-mode™ or Out-of-Audio™ (OOA) mode for light-load operation and 500-kHz or 800-kHz switching frequency. The Eco-mode™ maintains high efficiency during light load operation. The OOA mode keeps the switching frequency above audible frequency with minimum reduction in efficiency.

The device supports both internal and external soft-start options. It has an internal fixed soft-start time of 1.2 ms. If the application needs a longer soft-start time, the external SS pin can be connected to an external capacitor.

The TPS51397A integrates a power-good indicator and provides an output discharge function. It provides complete protection including OVP, UVP, OCP, OTP, and UVLO. The device is available in a 20-pin 3.0-mm x 3.0-mm HotRod™ package and the junction temperature is specified from –40°C to 125°C.

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Documentación técnica

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* Data sheet TPS51397A 4.5-V to 24-V, 10-A Synchronous Buck Converter with ULQ™ Operation datasheet (Rev. A) PDF | HTML 12 oct 2020
Application note Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part II: Hybrid Sense Network PDF | HTML 27 feb 2024
Application note Measuring the Bode Plot of D-CAP™, D-CAP2™, and D-CAP3™ DC/DC Converters (Rev. A) PDF | HTML 21 abr 2023
Application note Stability Analysis and Design of D-CAP2 and D-CAP3 Converter – Part 2 PDF | HTML 02 ago 2021
Application note Stability Analysis and Design of D-CAP2 and D-CAP3 Converter – Part 1 PDF | HTML 09 jun 2021
Application note Non-Isolated DC/DC Solutions for Alder Lake in Notebook Computing Applications PDF | HTML 08 ene 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.

Placa de evaluación

TPS51397AEVM — Módulo de evaluación de regulador reductor síncrono de 10 A

El módulo de evaluación (EVM) TPS51397AEVM se utiliza para evaluar el dispositivo TPS51397A. El TPS51397A es un convertidor buck síncrono diseñado para proporcionar una salida de hasta 10 A. La tensión de entrada nominal es de 4.5 V a 24 V. El TPS51397A utiliza un modo de control patentado (...)
Guía del usuario: PDF | HTML
Modelo de simulación

TPS51397A PSpice Transient Model

SLUM756.ZIP (151 KB) - PSpice Model
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN-HR (RJE) 20 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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Soporte y capacitación

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