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

TPS549A20

現行

具 PMBus 的 1.5-V 至 20-V、15-A 同步 SWIFT™ 降壓轉換器

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產品規格表

TPS549A20

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 15 Vin (min) (V) 4.5 Vin (max) (V) 20 Topology Buck Type Converter Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 1000 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Enable, Forced PWM, Light Load Efficiency, Over Current Protection, PMBus, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable, Voltage Margining Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00135
Iout (max) (A) 15 Vin (min) (V) 4.5 Vin (max) (V) 20 Topology Buck Type Converter Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 1000 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Enable, Forced PWM, Light Load Efficiency, Over Current Protection, PMBus, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable, Voltage Margining Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00135
VQFN-CLIP (RVE) 28 15.75 mm² 4.5 x 3.5
  • Integrated SWIFT 9.9-mΩ and 4.3-mΩ MOSFETs Support 15-A Continuous IOUT
  • Wide Conversion Input Voltage Range: 1.5 V to 20 V (with Snubber)
  • Output Voltage Range from 0.6 V to 5.5 V
  • Available PMBus Adjustments
    • Voltage Margin and Adjustment
    • Soft-Start Time
    • Power-On Delay
    • VDD UVLO Level
    • Fault Reporting
    • Switching Frequency
  • Supports All Ceramic Output Capacitors
  • Reference Voltage: 600 mV with ±0.5% Tolerance from –40°C to 85°C ambient temperature
  • D-CAP3 Control Mode With Fast Load-Step Response
  • Hiccup Over Current Protection
  • Auto-Skipping Eco-Mode for High Light-Load Efficiency
  • FCCM for Tight Output Ripple and Voltage Tolerance Requirements
  • Pre-charged Startup Capability
  • Eight Selectable Frequency Settings from
    200 kHz to 1 MHz via PMBus
  • 4.5 mm x 3.5 mm, 28-Pin, VQFN-CLIP Package
  • Supported at the WEBENCH Design Center
  • Integrated SWIFT 9.9-mΩ and 4.3-mΩ MOSFETs Support 15-A Continuous IOUT
  • Wide Conversion Input Voltage Range: 1.5 V to 20 V (with Snubber)
  • Output Voltage Range from 0.6 V to 5.5 V
  • Available PMBus Adjustments
    • Voltage Margin and Adjustment
    • Soft-Start Time
    • Power-On Delay
    • VDD UVLO Level
    • Fault Reporting
    • Switching Frequency
  • Supports All Ceramic Output Capacitors
  • Reference Voltage: 600 mV with ±0.5% Tolerance from –40°C to 85°C ambient temperature
  • D-CAP3 Control Mode With Fast Load-Step Response
  • Hiccup Over Current Protection
  • Auto-Skipping Eco-Mode for High Light-Load Efficiency
  • FCCM for Tight Output Ripple and Voltage Tolerance Requirements
  • Pre-charged Startup Capability
  • Eight Selectable Frequency Settings from
    200 kHz to 1 MHz via PMBus
  • 4.5 mm x 3.5 mm, 28-Pin, VQFN-CLIP Package
  • Supported at the WEBENCH Design Center

The TPS549A20 is a small-sized, synchronous buck converter with anadaptive on-time D-CAP3 control mode. The device offers ease-of-use and low bill-of-material countfor space-conscious power systems.

This device features high-performance integrated MOSFETs, accurate 0.6-V reference, andan integrated boost switch. Competitive features include very-low external-component count, fastload-transient response, auto-skip mode operation, internal soft-start control, and no requirementfor compensation. The device also features fault report viaPMBus to simplify the power supply design

A forced continuous conduction mode helps meet tight voltage regulation accuracyrequirements for performance DSPs and FPGAs. The TPS549A20 is available in a28-pin VQFN-CLIP package and is specified from –40°C to 125°C ambient temperature.

For all available packages, see the orderable

The TPS549A20 is a small-sized, synchronous buck converter with anadaptive on-time D-CAP3 control mode. The device offers ease-of-use and low bill-of-material countfor space-conscious power systems.

This device features high-performance integrated MOSFETs, accurate 0.6-V reference, andan integrated boost switch. Competitive features include very-low external-component count, fastload-transient response, auto-skip mode operation, internal soft-start control, and no requirementfor compensation. The device also features fault report viaPMBus to simplify the power supply design

A forced continuous conduction mode helps meet tight voltage regulation accuracyrequirements for performance DSPs and FPGAs. The TPS549A20 is available in a28-pin VQFN-CLIP package and is specified from –40°C to 125°C ambient temperature.

For all available packages, see the orderable
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類型 標題 日期
* Data sheet TPS549A20 1.5-V to 20-V (4.5-V to 25-V Bias) Input, 15-A Synchronous Step-Down SWIFT™ Converter With PMBus™ datasheet (Rev. A) PDF | HTML 2015年 12月 2日
EVM User's guide TPS549A20 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 8月 3日
Application note DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A) PDF | HTML 2021年 5月 4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
Technical article Simplifying loop compensation and poles and zeros calculations PDF | HTML 2016年 3月 18日
Application note SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC 2016年 2月 22日

設計與開發

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開發板

TPS549A20EVM-737 — TPS549A20 DCAP3 高效率 15A 同步降壓轉換器評估模組

The TPS549A20EVM-737 is designed to help the user easily evaluate and test the operation and functionality of the TPS549A20 buck converter. The EVM converts a 1.5-V to 20-V input voltage to a regulated 1.2-V output voltage that delivers up to 15 A in a 4.5-mm x 3.5-mm QFN package. This board (...)

使用指南: PDF | HTML
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應用軟體及架構

FUSION_DIGITAL_POWER_DESIGNER — 數位電源軟體

Fusion Digital Power™ graphical user interface (GUI) software is used to configure and monitor select Texas Instruments digital power controllers and sequencer/health monitors. The application uses the PMBus protocol to communicate with the device over serial bus by way of a TI USB adapter.
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模擬型號

TPS549A20 PSpice Transient Model

SLUM469.ZIP (125 KB) - PSpice Model
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計算工具

SLURB04 — TPS548A20 and TPS549A20 Excel Calculator and Layout Checklist

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產品
AC/DC & DC/DC converters (integrated FET)
TPS548A20 — 1.5-V 至 20-V、15-A 同步 SWIFT™ 降壓轉換器 TPS549A20 — 具 PMBus 的 1.5-V 至 20-V、15-A 同步 SWIFT™ 降壓轉換器
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參考設計

PMP11399 — 企業乙太網路交換器 PMBus 電源系統參考設計

PMP11399 is a complete PMBus power system for 3 ASIC/FPGA cores, DDR3 core memory, VTT termination, and auxiliary voltages commonly found on high-performance Ethernet Switches. The hardware is accompanied by a GUI that allows the user to perform real-time configuration and monitoring of the power (...)
Test report: PDF
電路圖: PDF
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VQFN-CLIP (RVE) 28 檢視選項
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