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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS548B22

現行

具有差分遠端感測功能的 1.5-V 至 18-V、25-A 同步 SWIFT™ 降壓轉換器

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現在提供此產品的更新版本

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功能與所比較的裝置相似
TPS54KB20 現行 4-V 至 16-V 輸入、25-A 遠端感測同步降壓轉換器 Smaller package and faster transient response.

TPS548B22

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 25 Vin (max) (V) 18 Vin (min) (V) 1.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Control mode D-CAP3 Switching frequency (min) (kHz) 425 Switching frequency (max) (kHz) 1050 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 2000 Duty cycle (max) (%) 80 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 25 Vin (max) (V) 18 Vin (min) (V) 1.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Control mode D-CAP3 Switching frequency (min) (kHz) 425 Switching frequency (max) (kHz) 1050 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 2000 Duty cycle (max) (%) 80 Type Converter
LQFN-CLIP (RVF) 40 35 mm² 7 x 5
  • Conversion Input Voltage Range (PVIN): 1.5 V to 18 V
  • Input Bias Voltage (VDD) Range: 4.5 V to 22 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated, 4.1-mΩ and 1.9-mΩ Power MOSFETs With 25-A Continuous Output Current
  • Voltage Reference 0.6 V to 1.2 V in 50-mV Steps Using VSEL Pin
  • ±0.5%, 0.9-VREF Tolerance Range: –40°C to +125°C Junction Temperature
  • True Differential Remote Sense Amplifier
  • D-CAP3™ Control Loop to Support Large Bulk Capacitors and/or Small MLCCs Without External Compensation
  • Adaptive On-Time Control With 4 Selectable Frequency Settings: 425 kHz, 650 kHz, 875 kHz and 1.05 MHz
  • Temperature Compensated and with Programmable Positive and Negative Current Limit and OC Clamp
  • Choice of Hiccup or Latch-Off OVP or UVP
  • VDD UVLO External Adjustment by Precision EN Hysteresis
  • Prebias Start-up Support
  • Eco-Mode and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD
  • 7 mm × 5 mm × 1.5 mm, 40-Pin, Stack Clipped LQFN-CLIP Package
  • Conversion Input Voltage Range (PVIN): 1.5 V to 18 V
  • Input Bias Voltage (VDD) Range: 4.5 V to 22 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated, 4.1-mΩ and 1.9-mΩ Power MOSFETs With 25-A Continuous Output Current
  • Voltage Reference 0.6 V to 1.2 V in 50-mV Steps Using VSEL Pin
  • ±0.5%, 0.9-VREF Tolerance Range: –40°C to +125°C Junction Temperature
  • True Differential Remote Sense Amplifier
  • D-CAP3™ Control Loop to Support Large Bulk Capacitors and/or Small MLCCs Without External Compensation
  • Adaptive On-Time Control With 4 Selectable Frequency Settings: 425 kHz, 650 kHz, 875 kHz and 1.05 MHz
  • Temperature Compensated and with Programmable Positive and Negative Current Limit and OC Clamp
  • Choice of Hiccup or Latch-Off OVP or UVP
  • VDD UVLO External Adjustment by Precision EN Hysteresis
  • Prebias Start-up Support
  • Eco-Mode and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD
  • 7 mm × 5 mm × 1.5 mm, 40-Pin, Stack Clipped LQFN-CLIP Package

The TPS548B22 device is a compact single buck converter with adaptive on-time, D-CAP3 mode control. It is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count, and space-conscious power systems.

This device features full differential sense, TI integrated FETs with a high-side on-resistance of 4.1 mΩ and a low-side on-resistance of 1.9 mΩ. The device also features accurate 0.5%, 0.9-V reference with an ambient temperature range between –40°C and +125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, output voltage setpoint accuracy, auto-skip or FCCM mode operation, and internal soft-start control.

The TPS548B22 device is available in 7 mm × 5 mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).

The TPS548B22 device is a compact single buck converter with adaptive on-time, D-CAP3 mode control. It is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count, and space-conscious power systems.

This device features full differential sense, TI integrated FETs with a high-side on-resistance of 4.1 mΩ and a low-side on-resistance of 1.9 mΩ. The device also features accurate 0.5%, 0.9-V reference with an ambient temperature range between –40°C and +125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, output voltage setpoint accuracy, auto-skip or FCCM mode operation, and internal soft-start control.

The TPS548B22 device is available in 7 mm × 5 mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).
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TPS549B22 現行 具差動遠端感測功能與 PMBus 的 1.5-V 至 18-V 25-A 同步 SWIFT™ 降壓轉換器 Upgraded PMBus part with adaptive voltage scaling.

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類型 標題 日期
* Data sheet TPS548B22 1.5-V to 18-V VIN, 4.5-V to 22-V VDD, 25-A SWIFT™ Synchronous Step-Down Converter With Full Differential Sense datasheet (Rev. A) PDF | HTML 2017年 7月 7日
Application note Measuring the Bode Plot of D-CAP™, D-CAP2™, and D-CAP3™ DC/DC Converters (Rev. A) PDF | HTML 2023年 4月 21日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
White paper Power solution options for data center applications (Rev. A) 2020年 2月 27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 brief Using DC/DC Controllers to Improve Bitcoin Miner Designs 2018年 3月 15日
Technical article Powering FPGAs - What to consider with Xilinx UltraScale+ FPGAs PDF | HTML 2018年 1月 29日
Technical article Comparing Bode plots in D-CAP3™ control mode PDF | HTML 2017年 5月 24日
Application note Calculating Output Capacitance to Meet Transient and Ripple Requirements 2017年 5月 2日
Application note Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev 2017年 1月 25日

設計與開發

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開發板

TPS548B22EVM-847 — TPS548B22 DCAP3 高效能 25A 單路同步降壓轉換器評估模組

TPS548B22EVM-PWR784 評估模組 (EVM) 使用 TPS548B22。TPS548B22 是具整合 MOSFET 的 D-CAP3™ 模式、25A 同步降壓轉換器。其可由 12V 輸入匯流排在最高 25A 電流下提供 1.0V 固定輸出。
使用指南: PDF | HTML
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模擬型號

TPS548B22 PSpice Transient Model

SLUM577.ZIP (154 KB) - PSpice Model
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模擬型號

TPS548B22 SIMPLIS Transient Model

SLUM746.ZIP (488 KB) - SIMPLIS Model
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
LQFN-CLIP (RVF) 40 Ultra Librarian
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