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DC/DC 轉換器

TPS546C23

現行

具 PMBus 與遙測的 4.5-V 至 18-V、可堆疊 35-A 同步 SWIFT™ 降壓轉換器

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產品規格表

TPS546C23

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 35 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.35 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Adjustable soft start, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Overcurrent protection, PMBus, Phase interleaving, Power good, Prebias startup, Synchronous rectification, Telemetry, UVLO adjustable, Voltage Margining Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0077 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 35 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.35 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Adjustable soft start, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Overcurrent protection, PMBus, Phase interleaving, Power good, Prebias startup, Synchronous rectification, Telemetry, UVLO adjustable, Voltage Margining Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0077 Duty cycle (max) (%) 100
LQFN-CLIP (RVF) 40 35 mm² (7 mm × 5 mm)
  • PMBus™ 1.3 Compliant Converters: 35 A
  • 2-Device Stackable for up to 70 A With Current Sharing
  • Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.35 V to 5.5 V
  • Integrated 3.2-mΩ and 1.4-mΩ Stacked NexFET™ Power Stage
  • 350-mV to 1650-mV Reference for Adaptive Voltage Scaling (AVS) Function and Margining through PMBus
  • 0.5% Reference Accuracy at 600 mV and Above
  • Lossless Low-Side MOSFET Current Sensing
  • Voltage Mode Control With Input Feed-Forward
  • Differential Remote Sensing
  • Monotonic Start-Up into Pre-Biased Output
  • Output Voltage and Output Current Reporting
  • Internal Die Temperature Monitoring
  • 64 Programmable PMBus Addresses via ADDR0 and ADDR1 Pins
  • Programmable via the PMBus Interface:
    • OCP, UVLO, Soft-Start, PG, OV, UV, OT Levels, Fault Responses
    • Turnon and Turnoff Delays
  • Thermal Shutdown
  • Pin Strapping for Switching Frequency: 200 kHz to 1 MHz
  • Frequency Synchronization to an External Clock or Output Clock to Sync Out
  • Create a Custom Design Using the TPS546C23 With the WEBENCH® Power Designer
  • PMBus™ 1.3 Compliant Converters: 35 A
  • 2-Device Stackable for up to 70 A With Current Sharing
  • Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.35 V to 5.5 V
  • Integrated 3.2-mΩ and 1.4-mΩ Stacked NexFET™ Power Stage
  • 350-mV to 1650-mV Reference for Adaptive Voltage Scaling (AVS) Function and Margining through PMBus
  • 0.5% Reference Accuracy at 600 mV and Above
  • Lossless Low-Side MOSFET Current Sensing
  • Voltage Mode Control With Input Feed-Forward
  • Differential Remote Sensing
  • Monotonic Start-Up into Pre-Biased Output
  • Output Voltage and Output Current Reporting
  • Internal Die Temperature Monitoring
  • 64 Programmable PMBus Addresses via ADDR0 and ADDR1 Pins
  • Programmable via the PMBus Interface:
    • OCP, UVLO, Soft-Start, PG, OV, UV, OT Levels, Fault Responses
    • Turnon and Turnoff Delays
  • Thermal Shutdown
  • Pin Strapping for Switching Frequency: 200 kHz to 1 MHz
  • Frequency Synchronization to an External Clock or Output Clock to Sync Out
  • Create a Custom Design Using the TPS546C23 With the WEBENCH® Power Designer

The TPS546C23 devices are PMBus 1.3 Compliant, non-isolated DC/DC converters with integrated FETs, capable of high-frequency operation and 35-A current output from a 7-mm × 5-mm package. Two TPS546C23 devices can be paralleled together to provide up to 70-A load. Current sensing is realized by sampling a small portion of the power stage current and independent on the device temperature. High-frequency, low-loss switching, provided by an integrated NexFET power stage and optimized drivers, allows for very high-density power solutions. The PMBus interface enables the AVS functions through VOUT_COMMAND, flexible converter configuration, as well as key parameters monitoring including output voltage, current, and internal die temperature. Response to fault conditions can be set to either restart, latch-off or ignore depending on system requirements.

The TPS546C23 devices are PMBus 1.3 Compliant, non-isolated DC/DC converters with integrated FETs, capable of high-frequency operation and 35-A current output from a 7-mm × 5-mm package. Two TPS546C23 devices can be paralleled together to provide up to 70-A load. Current sensing is realized by sampling a small portion of the power stage current and independent on the device temperature. High-frequency, low-loss switching, provided by an integrated NexFET power stage and optimized drivers, allows for very high-density power solutions. The PMBus interface enables the AVS functions through VOUT_COMMAND, flexible converter configuration, as well as key parameters monitoring including output voltage, current, and internal die temperature. Response to fault conditions can be set to either restart, latch-off or ignore depending on system requirements.
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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 TPS546C23 4.5-V to 18-V, 35-A 2× Stackable Synchronous Buck Converters With PMBus Supporting Telemetry datasheet (Rev. C) PDF | HTML 2018/6/11
選擇指南 Buck Converter Quick Reference Guide (Rev. B) 2021/4/8
技術文章 3 big benefits of small cells PDF | HTML 2020/5/26
白皮書 Small Cells, Big Impact: Designing Power Soutions for 5G Applications 2019/6/26
應用說明 Programming the NVM of PMBus Buck Converters to Support Mass-Production Needs (Rev. B) 2019/5/13
應用說明 Analysis and Design of Input Filter for DC-DC Circuit 2017/11/27
技術文章 Getting started with PMBus PDF | HTML 2017/9/14
技術文章 Save PCB space and overcome point-of-load design complexity with PMBus modules PDF | HTML 2017/3/27
技術文章 Stack current with PowerStack packages for higher power POL PDF | HTML 2016/12/7
更多文件說明 TPS546C23 Quick Reference Guide 2016/11/17
應用說明 Method of Graphing Safe Operating Area (SOA) Curves in DC-DC Converter 2016/3/30
類比設計期刊 MOSFET power losses and how they affect power-supply efficiency 2016/1/26

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

TPS546C23EVM1-746 — TPS546C23 35A PMBus 可堆疊同步降壓轉換器評估模組

TPS546C23EVM1-746 評估模組提供兩個獨立降壓轉換器，可從額定 12V 匯流排進行轉換以產生兩個穩壓 0.9V 輸出，各輸出電流高達 35A。TPS546C23EVM1-746 旨在展示具備遙測功能之 PMBus 介面的典型單相低輸出電壓應用中的 TPS546C23。

使用指南: PDF
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開發板

TPS546C23EVM2-746 — 具有 PMBUS 的 TPS546C23 堆疊式雙相 70A 評估模組

TPS546C23EVM2-746 評估模組將兩個 35A TPS546C23 降壓轉換器結合在可堆疊配置中，可提供連續的 70A 輸出電流和額定 12V 輸入匯流排的穩壓 1.2V 輸出。評估模組可配合 PMBus 介面與遙測功能。

使用指南: PDF | HTML
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模擬型號

TPS546C23 IBIS Model

SLUM706.ZIP (53 KB) - IBIS 模型
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模擬型號

TPS546C23 PSpice Transient Model

SLUM531.ZIP (289 KB) - PSpice 模型
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計算工具

SLURB05 — TPS546C20A and TPS546C23 Excel Calculator and Layout Checklist

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參考設計

PMP20490 — 具有堆疊式 TPS546C20A PMBus DCDC 轉換器的高密度 12V 輸入、1.2V 輸出、60A POL 參考設計

TPS546C23 為高電流 DC/DC 應用的控制與同步功率級提供單一 IC，並可使用兩個相同零件將電流能力加倍。  多相也允許在指定切換頻率下進行輸出漣波抵銷和有效的高頻寬控制。PMP20490 展示了一款高電流 2 相位應用，透過在控制 IC 上方安裝電感器實現更小體積與兩個板載動態負載。測試報告顯示兩個電感器來源的性能與效率。
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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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