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DC/DC 轉換器

TPS548B28

現行

具有遠端感測和打嗝電流限制的 2.7-V 至 16-V 輸入、20-A 同步降壓轉換器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但針腳輸出與所比較的裝置不同。
TPS548B23 現行 4V 至 16V、20A 同步降壓轉換器 Same functionality in smaller package

TPS548B28

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 20 Vin (max) (V) 16 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO Fixed Control mode D-CAP3 Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00068 Duty cycle (max) (%) 86
Rating Catalog Topology Buck Iout (max) (A) 20 Vin (max) (V) 16 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO Fixed Control mode D-CAP3 Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00068 Duty cycle (max) (%) 86
VQFN-HR (RWW) 21 12 mm² (4 mm × 3 mm)
  • 4-V to 16-V input range up to 20-A without external bias
  • 2.7-V to 16-V input range up to 20-A with external bias ranging from 3.13-V to 3.6-V
  • Output voltage range: 0.6-V to 5.5-V
  • Integrated 7.7-mΩ and 2.4-mΩ MOSFETs support 20-A continuous output current
  • D-CAP3™ control mode with ultra fast load-step response
  • Supports all ceramic output capacitors
  • Differential remote sense with 0.6-V ±1% VREF for –40°C to +125°C junction temperature
  • Selectable FCCM or auto-skipping Eco-mode™ for high light-load efficiency
  • Programmable current limit with RTRIP
  • Pin-selectable switching frequency: 600 kHz, 800 kHz, 1 MHz
  • Differential remote sense for high output accuracy
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased start-up capability
  • Open-drain power-good output
  • Hiccup for OC and UV faults, latch-off for OV Fault
  • 4-mm × 3-mm, 21-pin QFN package
  • Pin compatible with 15-A TPS548A28
  • Fully RoHS-compliant without exemption
  • 4-V to 16-V input range up to 20-A without external bias
  • 2.7-V to 16-V input range up to 20-A with external bias ranging from 3.13-V to 3.6-V
  • Output voltage range: 0.6-V to 5.5-V
  • Integrated 7.7-mΩ and 2.4-mΩ MOSFETs support 20-A continuous output current
  • D-CAP3™ control mode with ultra fast load-step response
  • Supports all ceramic output capacitors
  • Differential remote sense with 0.6-V ±1% VREF for –40°C to +125°C junction temperature
  • Selectable FCCM or auto-skipping Eco-mode™ for high light-load efficiency
  • Programmable current limit with RTRIP
  • Pin-selectable switching frequency: 600 kHz, 800 kHz, 1 MHz
  • Differential remote sense for high output accuracy
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased start-up capability
  • Open-drain power-good output
  • Hiccup for OC and UV faults, latch-off for OV Fault
  • 4-mm × 3-mm, 21-pin QFN package
  • Pin compatible with 15-A TPS548A28
  • Fully RoHS-compliant without exemption

The TPS548B28 device is a small high-efficiency synchronous buck converter with an adaptive on-time D-CAP3 control mode. Because external compensation is not required, the device is easy to use and requires few external components. The device is well-suited for space-constrained data center applications.

The TPS548B28 device has differential remote sense, high-performance integrated MOSFETs, and an accurate ±1%, 0.6-V reference over the full operating junction temperature range. The device features fast load-transient response, accurate load regulation and line regulation, Skip-mode or FCCM operation, and programmable soft start.

The TPS548B28 is a lead-free device. The device is fully RoHS compliant without exemption.

The TPS548B28 device is a small high-efficiency synchronous buck converter with an adaptive on-time D-CAP3 control mode. Because external compensation is not required, the device is easy to use and requires few external components. The device is well-suited for space-constrained data center applications.

The TPS548B28 device has differential remote sense, high-performance integrated MOSFETs, and an accurate ±1%, 0.6-V reference over the full operating junction temperature range. The device features fast load-transient response, accurate load regulation and line regulation, Skip-mode or FCCM operation, and programmable soft start.

The TPS548B28 is a lead-free device. The device is fully RoHS compliant without exemption.
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您可能會感興趣的類似產品

open-in-new 比較替代產品
針腳對針腳的功能與所比較的裝置相同。
TPS548A28 現行 具有遠端感測功能和 3V LDO 的 2.7V 至 16V、15A 同步降壓轉換器 Lower current rating equivalent part.
TPS54JA20 現行 具有遠端感測和閂鎖電流限制的 2.7V 至 16V 輸入、12A 同步降壓轉換器 Lower current rating equivalent part.
功能相同，但針腳輸出與所比較的裝置不同。
TPS548B27 現行 具差動遠端感測功能的 2.7-V 至 16-V 20-A 同步降壓轉換器 0.5-mm pin-pitch equivalent.
功能相似於所比較的產品。
TPS54KB20 現行 4-V 至 16-V 輸入、25-A 遠端感測同步降壓轉換器 Higher current converter in a smaller package.

技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS548B28 2.7-V to 16-V Input, 20-A Synchronous Buck Converter With Remote Sense, 3-V Internal LDO and Hiccup Current Limit datasheet (Rev. A) PDF | HTML 2022/12/19
Application brief 在資料中心應用中使用 TPS548B23 與 TPS548B28 的優勢 (Rev. A) PDF | HTML Download English Version (Rev.A) PDF | HTML 2025/12/2
應用說明 Point-of-Load Designs in Data Center Applications for Intel Xeon Sapphire Rapids Scalable Processors (Rev. C) PDF | HTML 2024/10/9
Application brief Solving Power Design Challenges in Enterprise SSD Applications PDF | HTML 2024/9/23
應用說明 Measuring the Bode Plot of D-CAP™, D-CAP2™, and D-CAP3™ DC/DC Converters (Rev. A) PDF | HTML 2023/4/21
類比設計期刊 Designing with Small DC/DC Converters: HotRod™ QFN vs. Enhanced HotRod™ QFN PDF | HTML 2021/11/18
應用說明 Point-of-Load Solutions for Network Interface Cards (NIC) PDF | HTML 2021/9/8
應用說明 Benefits Using a Buck Converter's External Vcc Bias Pin PDF | HTML 2021/5/25
證書 TPS548B28EVM-023 EU Declaration of Conformity (DoC) 2020/6/18
應用說明 Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) PDF | HTML 2020/1/8

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

TPS548B28EVM — 具有 0.6-Vref 和內部 3-V LDO 的 20-A DC-DC 降壓轉換器評估模組

TPS548B28 是專為 20 A 輸出電流而設計的 D-CAP3™ 同步降壓轉換器，TPS548B28EVM 評估模組 (EVM) 旨在展示使用此裝置進行設計時可實現的小型印刷電路板面積。裝置封裝內部整合了高壓側和低壓側切換 MOSFET 以及各自的閘極驅動器電路。
使用指南: PDF
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開發板

TPS54JB20EVM — 具有差分遠端感測功能的 16-V、20-A 降壓轉換器評估模組

TPS54JB20EVM 評估模組 (EVM) 的設計目的在於展示使用 TPS54JB20 裝置進行設計時可實現的小型印刷電路板，這是一款專為高達 20-A 輸出電流設計的 D-CAP3 同步降壓轉換器。TPS54JB20 裝置具有整合式高壓側與低壓側 MOSFET。
使用指南: PDF | HTML
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模擬型號

TPS548B28 PSpice Transient Model

SNVMC07.ZIP (191 KB) - PSpice 模型
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模擬型號

TPS548B28 SIMPLIS Transient and Average Model

SNVMC08.ZIP (562 KB) - SIMPLIS 模型
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計算工具

SLVRBH6 — TPS54J06x TPS54Jx20 TPS548x28-9 Excel Calculator Tool

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VQFN-HR (RWW) 21 Ultra Librarian
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