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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS543B20

現行

具有適應性內部補償功能的 4-V 至 19-V、25-A 同步 SWIFT™ 降壓轉換器

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產品規格表

TPS543B20

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 25 Vin (min) (V) 4 Vin (max) (V) 19 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Phase Interleaving, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO Fixed Control mode ACM/AECM Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 4300 Duty cycle (max) (%) 70
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 25 Vin (min) (V) 4 Vin (max) (V) 19 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Phase Interleaving, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO Fixed Control mode ACM/AECM Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 4300 Duty cycle (max) (%) 70
LQFN-CLIP (RVF) 40 35 mm² 7 x 5
  • Internally-Compensated Advanced Current Mode Control 25-A POL
  • Input Voltage Range: 4 V to 19 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated 4.1/1.9-mΩ Stacked NexFET™ Power Stage With Lossless Low-Side Current Sensing
  • Fixed Frequency - Synchronization to an External Clock and/or Sync Out
  • Pin Strapping Programmable Switching Frequency
    • 300 kHz to 2 MHz for Standalone
    • 300 kHz to 1 MHz for Stackable
  • Stack 2× for up to 50 A With Current Share, Voltage Share, and CLK Sync
  • Pin Strapping Programmable Reference from 0.6 V to 1.1 V With 0.5% Accuracy
  • Differential Remote Sensing
  • Safe Start-Up into Prebiased Output
  • High-Accuracy Hiccup Current Limit
  • Asynchronous Pulse Injection (API) and Body Braking
  • 40-pin, 5-mm × 7-mm LQFN Package with 0.5-mm Pitch and Single Thermal Pad
  • Create a Custom Design Using the TPS543B20 With the WEBENCH® Power Designer
  • Internally-Compensated Advanced Current Mode Control 25-A POL
  • Input Voltage Range: 4 V to 19 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated 4.1/1.9-mΩ Stacked NexFET™ Power Stage With Lossless Low-Side Current Sensing
  • Fixed Frequency - Synchronization to an External Clock and/or Sync Out
  • Pin Strapping Programmable Switching Frequency
    • 300 kHz to 2 MHz for Standalone
    • 300 kHz to 1 MHz for Stackable
  • Stack 2× for up to 50 A With Current Share, Voltage Share, and CLK Sync
  • Pin Strapping Programmable Reference from 0.6 V to 1.1 V With 0.5% Accuracy
  • Differential Remote Sensing
  • Safe Start-Up into Prebiased Output
  • High-Accuracy Hiccup Current Limit
  • Asynchronous Pulse Injection (API) and Body Braking
  • 40-pin, 5-mm × 7-mm LQFN Package with 0.5-mm Pitch and Single Thermal Pad
  • Create a Custom Design Using the TPS543B20 With the WEBENCH® Power Designer

The TPS543B20 employs an internally compensated emulated peak-current-mode control, with a clock synchronizable, fixed-frequency modulator for EMI-sensitive POL. The internal integrator and directly amplifying ramp tracking loop eliminate the need for external compensation over a wide range of frequencies thereby making the system design flexible, dense, and simple. Optional API and body braking help improve transient performance by significantly reducing undershoot and overshoot, respectively. Integrated NexFET™ MOSFETs with low-loss switching facilitate high efficiency and deliver up to 25 A in a 5-mm × 7-mm PowerStack™ package with a layout friendly thermal pad. Two TPS543B20 devices can be stacked together to provide up to 50-A point-of-load.

The TPS543B20 employs an internally compensated emulated peak-current-mode control, with a clock synchronizable, fixed-frequency modulator for EMI-sensitive POL. The internal integrator and directly amplifying ramp tracking loop eliminate the need for external compensation over a wide range of frequencies thereby making the system design flexible, dense, and simple. Optional API and body braking help improve transient performance by significantly reducing undershoot and overshoot, respectively. Integrated NexFET™ MOSFETs with low-loss switching facilitate high efficiency and deliver up to 25 A in a 5-mm × 7-mm PowerStack™ package with a layout friendly thermal pad. Two TPS543B20 devices can be stacked together to provide up to 50-A point-of-load.
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TPS543C20 現行 具有適應性內部補償功能的 4-V 至 14-V、40-A 同步 SWIFT™ 降壓轉換器 Stackable to reach 80 A.

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類型 標題 日期
* Data sheet TPS543B20 4-VIN to 19-VIN, 25-A Stackable, Synchronous Step-Down SWIFT™ Converter With Adaptive Internal Compensation datasheet (Rev. B) PDF | HTML 2018年 3月 28日
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024年 4月 30日
Analog Design Journal Control-Mode Quick Reference Guide (Rev. B) PDF | HTML 2023年 8月 29日
User guide TPS543B20 SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 12月 20日
Application note Point-of-Load Solutions for Network Interface Cards (NIC) PDF | HTML 2021年 9月 8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
Technical article 3 big benefits of small cells PDF | HTML 2020年 5月 26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
White paper Small Cells, Big Impact: Designing Power Soutions for 5G Applications 2019年 6月 26日
Application note DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems 2018年 12月 11日
White paper Internally compensated advanced current mode (ACM) (Rev. A) 2018年 12月 7日
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 2018年 8月 24日
Technical article Why are there so many control modes for step-down DC/DC converters and controllers PDF | HTML 2018年 4月 4日
Technical article Powering FPGAs – Improving overshoot of voltage regulators for Intel Arria 10 and PDF | HTML 2018年 2月 8日
Technical article Powering FPGAs – Improving undershoot of voltage regulators with asynchronous puls PDF | HTML 2018年 2月 2日
Technical article Powering FPGAs - What to consider with Xilinx UltraScale+ FPGAs PDF | HTML 2018年 1月 29日
Analog Design Journal Understanding thermal-resistance specification of DC/DC convert. w/ MOSFETs 2018年 1月 4日
Technical article Lightning-fast internally-compensated ACM topology – what can it do for you? PDF | HTML 2017年 5月 18日

設計與開發

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開發板

TPS543B20EVM-054 — 25-A、固定頻率非補償可堆疊同步降壓轉換器評估模組

The TPS543B20EVM-054 is designed to help the user easily evaluate and test the operation and functionality of the TPS543B20 buck converter. The EVM converts a 4-V to 19-V input voltage to a regulated 0.9-V output voltage that delivers up to 25 A in a 5-mm x 7-mm QFN package. The EVM features (...)

使用指南: PDF | HTML
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模擬型號

TPS543B20 PSpice Transient Model

SLUM590.ZIP (128 KB) - PSpice Model
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計算工具

SLURB00 — TPS543B20 TPS543C20A TPS543C20 Excel Calculator Tool and Checklist

支援產品和硬體

支援產品和硬體

產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
TPS543B20 — 具有適應性內部補償功能的 4-V 至 19-V、25-A 同步 SWIFT™ 降壓轉換器 TPS543C20 — 具有適應性內部補償功能的 4-V 至 14-V、40-A 同步 SWIFT™ 降壓轉換器 TPS543C20A — 具有自適性內部補償功能的 4V 至 16V、40A 同步 SWIFT™ 降壓轉換器
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參考設計

PMP22194 — 具備可調整負輸出電壓參考設計的同步反相降壓升壓轉換器

此參考設計使用具有內部頂部和底部 FET 的同步降壓穩壓器，該穩壓器配置為同步反相降壓升壓轉換器，以提供 -0.2 V 和 -0.6 V 之間能夠提供最大 15 A 電流至負載的可調輸出。輸出電壓由外部 PWM 訊號或類比電壓訊號進行調整。
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