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)

TPS54A24

ACTIVO

Convertidor reductor SWIFT™ síncrono de 4.5 V a 17 V y 10 A

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TPS54A24

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Detalles del producto

Iout (max) (A) 10 Vin (min) (V) 4.5 Vin (max) (V) 17 Topology Buck Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1600 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 12 Rating Catalog Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00058
Iout (max) (A) 10 Vin (min) (V) 4.5 Vin (max) (V) 17 Topology Buck Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1600 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 12 Rating Catalog Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00058
WQFN (RTW) 24 16 mm² 4 x 4
  • Standard 4-mm × 4-mm WQFN package
  • –40°C to +150°C Operating junction temperature
  • 200-kHz to 1.6-MHz Fixed switching frequency
  • Peak-current-mode control
  • Synchronizes to external clock
  • 0.6-V Voltage reference ±0.85% over temperature
  • 0.6-V to 12-V Output voltage range
  • Safe start-up into prebiased output voltage
  • Hiccup current limit
  • Adjustable soft start and power sequencing
  • Adjustable input undervoltage lockout
  • Power-good output monitor for undervoltage and overvoltage
  • 3-µA Shutdown current
  • Output overvoltage protection
  • Non-latch thermal shutdown protection
  • Create a custom design using the TPS54A24 with the WEBENCH® Power Designer
  • Standard 4-mm × 4-mm WQFN package
  • –40°C to +150°C Operating junction temperature
  • 200-kHz to 1.6-MHz Fixed switching frequency
  • Peak-current-mode control
  • Synchronizes to external clock
  • 0.6-V Voltage reference ±0.85% over temperature
  • 0.6-V to 12-V Output voltage range
  • Safe start-up into prebiased output voltage
  • Hiccup current limit
  • Adjustable soft start and power sequencing
  • Adjustable input undervoltage lockout
  • Power-good output monitor for undervoltage and overvoltage
  • 3-µA Shutdown current
  • Output overvoltage protection
  • Non-latch thermal shutdown protection
  • Create a custom design using the TPS54A24 with the WEBENCH® Power Designer

The TPS54A24 is a full-featured 17-V, 10-A synchronous step-down DC/DC converter in a standard 4 mm × 4 mm WQFN package.

The device is optimized for small solution size through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through peak-current-mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor footprint.

The peak-current-mode control simplifies the loop compensation and provides fast transient response. Cycle-by-cycle peak current limiting on the high-side and low-side sourcing current limit protects the device in overload situations. Hiccup limits MOSFET power dissipation if a short circuit or over loading fault persists.

A power-good supervisor circuit monitors the regulator output. The PGOOD pin is an open-drain output and goes high impedance when the output voltage is in regulation. An internal deglitch time prevents the PGOOD pin from pulling low unless a fault has occurred.

A dedicated EN pin can be used to control the regulator on/off and adjust the input undervoltage lockout. The output voltage start-up ramp is controlled by the SS/TRK pin, which allows operation as either a standalone power supply or in tracking situations.

The TPS54A24 is a full-featured 17-V, 10-A synchronous step-down DC/DC converter in a standard 4 mm × 4 mm WQFN package.

The device is optimized for small solution size through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through peak-current-mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor footprint.

The peak-current-mode control simplifies the loop compensation and provides fast transient response. Cycle-by-cycle peak current limiting on the high-side and low-side sourcing current limit protects the device in overload situations. Hiccup limits MOSFET power dissipation if a short circuit or over loading fault persists.

A power-good supervisor circuit monitors the regulator output. The PGOOD pin is an open-drain output and goes high impedance when the output voltage is in regulation. An internal deglitch time prevents the PGOOD pin from pulling low unless a fault has occurred.

A dedicated EN pin can be used to control the regulator on/off and adjust the input undervoltage lockout. The output voltage start-up ramp is controlled by the SS/TRK pin, which allows operation as either a standalone power supply or in tracking situations.
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Documentación técnica

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* Data sheet TPS54A24 4.5-V to 17-V Input, 10-A Synchronous SWIFT™ Step-Down Converter datasheet (Rev. A) PDF | HTML 06 mar 2020
EVM User's guide TPS54A24 SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 02 ago 2021
Application note DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A) PDF | HTML 04 may 2021
Application note Non-Isolated Point-of-Load Solutions for Tiger Lake in PC Applications (Rev. B) PDF | HTML 29 abr 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 abr 2021
Application note Understanding Flip Chip QFN (HotRod) and Standard QFN Performance Differences 02 jul 2019
Application note Minimizing Output Ripple During Startup (Rev. A) 20 may 2019
Application note DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems 11 dic 2018
Application note Create an Inverting Power Supply Using a Synchronous Step-Down Regulator (Rev. B) 25 jun 2018

Diseño y desarrollo

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Placa de evaluación

TPS54A24EVM-058 — Módulo de evaluación de convertidor reductor

The TPS54A24EVM-058 is an evaluation module (EVM) for the TPS54A24.  The TPS54A24 is a synchronous buck converter, integrating both power MOSFETs to minimize solution size and provide high efficiency at full load. Fixed-frequency peak current-mode control is used to minimize period and (...)
Guía del usuario: PDF | HTML
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Modelo de simulación

TPS54A24 Transient PSPICE Model

SLVMD17.ZIP (197 KB) - PSpice Model
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WQFN (RTW) 24 Ver opciones
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