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TPS54A24

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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

Rating Catalog Topology Buck Iout (max) (A) 10 Vin (max) (V) 17 Vin (min) (V) 4.5 Vout (max) (V) 12 Vout (min) (V) 0.6 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking EMI features Low parasitic Hotrod packaging Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00058 Duty cycle (max) (%) 98 Sector Test & measurement
Rating Catalog Topology Buck Iout (max) (A) 10 Vin (max) (V) 17 Vin (min) (V) 4.5 Vout (max) (V) 12 Vout (min) (V) 0.6 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking EMI features Low parasitic Hotrod packaging Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00058 Duty cycle (max) (%) 98 Sector Test & measurement
WQFN (RTW) 24 16 mm² (4 mm × 4 mm)
  • 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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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS54A24 4.5-V to 17-V Input, 10-A Synchronous SWIFT™ Step-Down Converter datasheet (Rev. A) PDF | HTML 6/03/2020
Nota sobre la aplicación Point-of-Load Solutions for Network Interface Cards (NIC) PDF | HTML 8/09/2021
Nota sobre la aplicación DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A) PDF | HTML 4/05/2021
Nota sobre la aplicación Non-Isolated Point-of-Load Solutions for Tiger Lake in PC Applications (Rev. B) PDF | HTML 29/04/2021
Guía de selección Buck Converter Quick Reference Guide (Rev. B) 8/04/2021
Nota sobre la aplicación Non-Isolated Point-of-Load Solutions for Elkhart Lake in Industrial PC App. (Rev. A) PDF | HTML 21/05/2020
Nota sobre la aplicación Understanding Flip Chip QFN (HotRod) and Standard QFN Performance Differences 2/07/2019
Nota sobre la aplicación Minimizing Output Ripple During Startup (Rev. A) 20/05/2019
Nota sobre la aplicación DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems 11/12/2018
Nota sobre la aplicación Create an Inverting Power Supply Using a Synchronous Step-Down Regulator (Rev. B) 25/06/2018

Diseño y desarrollo

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Placa de evaluación

TPS54A24EVM-058 — Módulo de evaluación de convertidor reductor

El TPS54A24EVM-058 es un módulo de evaluación (EVM) para TPS54A24.  El TPS54A24 es un convertidor buck síncrono que integra ambos MOSFET de potencia para minimizar el tamaño de la solución y proporciona una alta eficiencia a plena carga. El control del modo de corriente máxima de frecuencia fija (...)
Guía del usuario: PDF | HTML
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