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AC/DC & DC/DC converters (integrated FET)

TPS54531

現行

具 Eco-mode 的 3.5V 至 28V 輸入、5A、570kHz 降壓轉換器

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產品規格表

TPS54531

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 5 Vin (min) (V) 3.5 Vin (max) (V) 28 Topology Buck Type Converter Switching frequency (min) (kHz) 570 Switching frequency (max) (kHz) 570 Features Enable, Light Load Efficiency, Soft Start Fixed, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00011
Iout (max) (A) 5 Vin (min) (V) 3.5 Vin (max) (V) 28 Topology Buck Type Converter Switching frequency (min) (kHz) 570 Switching frequency (max) (kHz) 570 Features Enable, Light Load Efficiency, Soft Start Fixed, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00011
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • 3.5 to 28-V input voltage range
  • Adjustable output voltage down to 0.8 V
  • Integrated 80-mΩ high-side MOSFET supports up to 5-A continuous output current
  • High efficiency at light loads with a pulse skipping Eco-mode
  • Fixed 570-kHz switching frequency
  • Typical 1-µA shutdown quiescent current
  • Adjustable slow start limits inrush currents
  • Programmable UVLO threshold
  • Overvoltage transient protection
  • Cycle-by-cycle current-limit, frequency fold back, and thermal shutdown protection
  • Available in easy-to-use thermally enhanced 8-pin SO PowerPAD™ integrated circuit package
  • Use TPS56637 for higher efficiency in a smaller package
  • Create a custom design using the TPS54531 with the WEBENCH Power Designer
  • 3.5 to 28-V input voltage range
  • Adjustable output voltage down to 0.8 V
  • Integrated 80-mΩ high-side MOSFET supports up to 5-A continuous output current
  • High efficiency at light loads with a pulse skipping Eco-mode
  • Fixed 570-kHz switching frequency
  • Typical 1-µA shutdown quiescent current
  • Adjustable slow start limits inrush currents
  • Programmable UVLO threshold
  • Overvoltage transient protection
  • Cycle-by-cycle current-limit, frequency fold back, and thermal shutdown protection
  • Available in easy-to-use thermally enhanced 8-pin SO PowerPAD™ integrated circuit package
  • Use TPS56637 for higher efficiency in a smaller package
  • Create a custom design using the TPS54531 with the WEBENCH Power Designer

The TPS54531 device is a 28-V, 5-A non-synchronous buck converter that integrates a low R DS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current-limit scheme, frequency fold back, and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54531 device is available in 8-pin SO PowerPAD integrated circuit package that has been internally optimized to improve thermal performance.

The TPS54531 device is a 28-V, 5-A non-synchronous buck converter that integrates a low R DS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current-limit scheme, frequency fold back, and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54531 device is available in 8-pin SO PowerPAD integrated circuit package that has been internally optimized to improve thermal performance.
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類型 標題 日期
* Data sheet TPS54531 5-A, 28-V Input,SWIFTStep-Down Converter With Eco-mode datasheet (Rev. B) PDF | HTML 2023年 10月 10日
EVM User's guide TPS54531 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 8月 26日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
Application note Using TPS54335A to Create an Inverting Power Supply (Rev. A) 2017年 7月 19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

TPS54531EVM-530 — TPS54531 降壓 DC/DC 轉換器評估模組

The TPS54531EVM-530 is a fully assembled and tested circuit for evaluating the TPS54531 synchronous step-down SWIFT™ converter. The EVM converts a 8-V to 28-V input voltage to a regulated 5-V output voltage that delivers up to 5 A and 95.3% efficiency.

使用指南: PDF | HTML
TI.com 無法提供
開發板

USB-PD-CHG-EVM-01 — 整合式 USB Type-C® 電力傳輸 (PD) 和 2-4 芯電池 EVM 的充電參考設計

USB-PD-CHG-EVM-01 評估模組 (EVM) 可用來一起評估 BQ25798 裝置與 TPS25750 裝置。BQ25798 是採用 HOTROD (QFN) 封裝的整合式切換模式降壓升壓電池充電管理裝置，適用 3.6-24-V 輸入的 1 至 4 串聯電池芯鋰離子與鋰聚合物電池。TPS25750 為一款 USB Type-C 與 PD 控制器，可在內部供應和汲取 20-V/5-A 電流。I2C 序列介面可讓 PD 控制器驅動電池充電器，同時由主機驅動，讓這套組合成為真正靈活的解決方案

使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS54531 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM872A.ZIP (309 KB) - PSpice Model
下載
參考設計

TIDA-050047 — 整合式 USB Type-C® 電力傳輸 (PD) 和 2-4 芯電池的充電參考設計

此參考設計可在 5 A 電流下充電至 20 V，無需任何外部 FET，進而大幅縮小解決方案尺寸，並降低總 BOM 成本。此外也不需要微處理器，因為 TPS25750 電力傳輸 (PD) 控制器會處理與 BQ25798 電池充電器 IC 的 I2C 通訊。此 I2C 功能與 TPS25750 Web 架構 GUI 可大幅簡化韌體開發程序。
Design guide: PDF
電路圖: PDF
參考設計

TIDEP0076 — 基於 AM572x 處理器並採用 DLP® 結構光的 3D 機器視覺參考設計

The TIDEP0076 3D machine vision design describes an embedded 3D scanner based on the structured light principle. A digital camera along with a Sitara™ AM57xx processor System on Chip (SoC)  is used to capture reflected light patterns from a DLP4500-based projector. Subsquent processing (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-010010 — 工業 GB 乙太網路 PHY 參考設計

PLC applications require high speed gigabit Ethernet interface. This can be realized using our reference design which implements the DP83867IR industrial gigabit Ethernet physical layer transceiver to the gigabit Ethernet MAC peripheral block inside the Sitara™ AM5728 processor.
Design guide: PDF
電路圖: PDF
參考設計

TIDEP0046 — 基於 AM57x 使用 OpenCL 進行 DSP 加速的 Monte-Carlo 模擬參考設計

TI’s high performance ARM® Cortex®-A15 based AM57x processors also integrate C66x DSPs. These DSPs were designed to handle high signal and data processing tasks that are often required by industrial, automotive and financial applications. The AM57x OpenCL implementation makes it easy (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDEP0047 — 採用 TI AM57x 處理器參考設計的電源和熱能設計考量

This is a reference design based on the AM57x processor and companion TPS659037 power management integrated circuit (PMIC).  This design specifically highlights important power and thermal design considerations and techniques for systems designed with AM57x and TPS659037.  It includes (...)
Design guide: PDF
電路圖: PDF
參考設計

PMP30224 — 適用於智慧型放大器的工業電源參考設計

The PMP30224 reference design provides 5.0V at 1.0A continuous / 5.0A peak and 1.8V @ 0.075A for a TAS2555 Class D Amplifier. The input voltage range is between 5.0V and 38.0V.
Test report: PDF
電路圖: PDF
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