TPS54824

現行

採用 HotRod™ QFN 的 4.5-V 至 17-V、8-A 同步 SWIFT™ 降壓轉換器

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 8 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, Soft Start Adjustable, Synchronous Rectification, Tracking EMI features Low parasitic Hotrod packaging Control mode current mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1600 Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 580 Duty cycle (max) (%) 98 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 8 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, Soft Start Adjustable, Synchronous Rectification, Tracking EMI features Low parasitic Hotrod packaging Control mode current mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1600 Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 580 Duty cycle (max) (%) 98 Type Converter
VQFN-HR (RNV) 18 12.25 mm² 3.5 x 3.5
  • Small 3.5-mm × 3.5-mm HotRod™ QFN package
  • Integrated 14.1-mΩ and 6.1-mΩ MOSFETs
  • Peak current mode control with fast transient response
  • 200-kHz to 1.6-MHz fixed switching frequency
  • Synchronizes to external clock
  • 0.6-V voltage reference ±0.85% over temperature
  • 0.6-V to 12-V output voltage range
  • Hiccup Current Limit
  • Safe start-up into pre-biased output voltage
  • Adjustable soft start and power sequencing
  • Adjustable input undervoltage lockout
  • 3-µA shutdown current
  • Power good output monitor for undervoltage and overvoltage
  • Output overvoltage protection
  • Non-latch thermal shutdown protection
  • –40°C to 150°C operating junction temperature
  • Small 3.5-mm × 3.5-mm HotRod™ QFN package
  • Integrated 14.1-mΩ and 6.1-mΩ MOSFETs
  • Peak current mode control with fast transient response
  • 200-kHz to 1.6-MHz fixed switching frequency
  • Synchronizes to external clock
  • 0.6-V voltage reference ±0.85% over temperature
  • 0.6-V to 12-V output voltage range
  • Hiccup Current Limit
  • Safe start-up into pre-biased output voltage
  • Adjustable soft start and power sequencing
  • Adjustable input undervoltage lockout
  • 3-µA shutdown current
  • Power good output monitor for undervoltage and overvoltage
  • Output overvoltage protection
  • Non-latch thermal shutdown protection
  • –40°C to 150°C operating junction temperature

The TPS54824 is a full-featured 17-V (19-V maximum), 8-A synchronous step-down DC/DC converter in a 3.5 mm × 3.5 mm HotRod™ QFN 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 TPS54824 is a full-featured 17-V (19-V maximum), 8-A synchronous step-down DC/DC converter in a 3.5 mm × 3.5 mm HotRod™ QFN 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.

下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
可直接投入的替代產品,相較於所比較的裝置,具備升級功能
TPS54424 現行 4.5V 至 17V 輸入、電流模式、4A 同步 SWIFT™ 降壓轉換器 Optimized for lower IOUT.
功能相同,但引腳輸出與所比較的裝置不同
TPS543820 現行 4-V 至 18-V、8-A 同步降壓 SWIFT™ 轉換器 Improved performance in a smaller package.
TPS54A24 現行 4.5-V 至 17-V、10-A 同步 SWIFT™ 降壓轉換器 Optimized for higher IOUT.
TPSM84824 現行 採用小巧 7.5 x 7.5 mm 元件封裝的 4.5V 至 17V 輸入、0.6V-10V 輸出、8A 電源模組 Power module version to enable greater power density with integrated inductor.

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件,然後再試一次。
檢視所有 21
類型 標題 日期
* Data sheet TPS54824 4.5-V to 17-V (19-V Maximum) Input, 8-A Synchronous SWIFT™ Step-Down Converter datasheet (Rev. B) PDF | HTML 2019年 10月 17日
Application note Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part I: Filter Design for Out PDF | HTML 2024年 2月 27日
Application note Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part II: Hybrid Sense Network PDF | HTML 2024年 2月 27日
Application note Collection of DC/DC Buck Regulator Technical Documentation (Rev. A) PDF | HTML 2022年 11月 28日
EVM User's guide TPS54824 SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. B) PDF | HTML 2021年 8月 19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 Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) PDF | HTML 2020年 1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 Optimizing Layout of the TPS54824 HotRod™ Package for Thermal Performance 2018年 11月 16日
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 2018年 8月 24日
Application note Create an Inverting Power Supply Using a Synchronous Step-Down Regulator (Rev. B) 2018年 6月 25日
More literature Common Mistakes in DC/DC Converters and How to Fix Them 2018年 2月 14日
White paper Measuring various types of low-frequency noise in DC/DC switching converters 2018年 2月 1日
Analog Design Journal Reducing noise on the output of a switching regulator 2018年 1月 4日
Application note Minimizing Output Ripple During Startup 2017年 6月 22日
Application note HotRod QFN Application Note 2014年 4月 9日
Application note Ultra Small 5A, Adjustable Output Reference design using TPS54620 2010年 5月 21日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS54824EVM-779 — TPS54824 同步降壓轉換器評估模組

TPS54824EVM-779 是一款 8A 同步轉換器評估模組 (EVM)。  EVM 會從額定 12V 輸入產生 1.8V 輸出電壓。  輸入電壓範圍為 4.5V 至 17V。電路設定為在 700kHz 下運作。
使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS54824 PSpice Average Model (Rev. C)

SLVMBY0C.ZIP (57 KB) - PSpice Model
模擬型號

TPS54824 PSpice Transient Model (Rev. B)

SLVMBU2B.ZIP (236 KB) - PSpice Model
模擬型號

TPS54824 TINA-TI Average Reference Design (Rev. C)

SLVMBZ3C.TSC (153 KB) - TINA-TI Reference Design
模擬型號

TPS54824 TINA-TI Average Spice Model (Rev. C)

SLVMBZ4C.ZIP (9 KB) - TINA-TI Spice Model
參考設計

TIDA-01466 — 適用於超音波前端的低電壓、低雜訊電源參考設計

此參考設計為經過最佳化的電源供應器,專為超音波成像系統中八個 16 通道接收 AFE IC 供電。此設計使用單晶片 DC-DC 轉換器 + LDO 組合穩壓器,能在將 LDO 輸入設定在剛好略高於壓降電壓的情況下充分利用 LDO PSRR,從而在效率最大化的同時減少零件數量。  此外,超低雜訊 LDO 有助於從 A/D 轉換獲得最高解析度,進而提升影像品質。此設計能夠與主時脈和系統時脈頻率同步切換頻率,協助系統設計師應用簡單的濾波技術,去除接地迴路上的電源供應器切換雜訊,或使用擴頻時脈來降低 EMI。此外,此設計採用 eFuse 裝置,提供簡單彈性的過電流防護方式。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01510 — 配備 DC/DC 轉換器且可提高功率密度的雙面佈線圖參考設計

此參考設計展示了設計雙面 DC/DC 佈局的正確方法,以實現更高的電源供應密度。設計指南重點介紹了常見錯誤及避免錯誤的方法,並附上測試結果,顯示在雙面佈局中正確使用 TPS54824 元件不會影響性能。若 TPS54824 降壓轉換器的 8A 輸出過高,該設計也可使用 TPS54424 裝置,這是一款 4A 引腳兼容的替代方案。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN-HR (RNV) 18 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

內容係由 TI 和社群貢獻者依「現狀」提供,且不構成 TI 規範。檢視使用條款

若有關於品質、封裝或訂購 TI 產品的問題,請參閱 TI 支援。​​​​​​​​​​​​​​

影片