TPS54A24

現行

4.5V 至 17V,10A 同步 SWIFT™ 降壓轉換器

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 10 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1600 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking EMI features Low parasitic Hotrod packaging Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 12 Iq (typ) (µA) 580 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 10 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1600 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking EMI features Low parasitic Hotrod packaging Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 12 Iq (typ) (µA) 580 Duty cycle (max) (%) 98
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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類型 標題 日期
* Data sheet TPS54A24 4.5-V to 17-V Input, 10-A Synchronous SWIFT™ Step-Down Converter datasheet (Rev. A) PDF | HTML 2020年 3月 6日
EVM User's guide TPS54A24 SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 8月 2日
Application note DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A) PDF | HTML 2021年 5月 4日
Application note Non-Isolated Point-of-Load Solutions for Tiger Lake in PC Applications (Rev. B) PDF | HTML 2021年 4月 29日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
Application note Understanding Flip Chip QFN (HotRod) and Standard QFN Performance Differences 2019年 7月 2日
Application note Minimizing Output Ripple During Startup (Rev. A) 2019年 5月 20日
Application note DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems 2018年 12月 11日
Application note Create an Inverting Power Supply Using a Synchronous Step-Down Regulator (Rev. B) 2018年 6月 25日

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開發板

TPS54A24EVM-058 — 降壓轉換器評估模組

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 (...)
使用指南: PDF | HTML
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模擬型號

TPS54A24 Transient PSPICE Model

SLVMD17.ZIP (197 KB) - PSpice Model
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RTW) 24 Ultra Librarian

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