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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS546C20A

現行

具 PMBus 和針腳設置的 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

TPS546C20A

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) 35 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Over Current Protection, PMBus, Phase Interleaving, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Telemetry, UVLO adjustable, Voltage Margining Control mode Voltage mode Vout (min) (V) 0.35 Vout (max) (V) 5.5 Iq (typ) (µA) 7700 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 35 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Over Current Protection, PMBus, Phase Interleaving, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Telemetry, UVLO adjustable, Voltage Margining Control mode Voltage mode Vout (min) (V) 0.35 Vout (max) (V) 5.5 Iq (typ) (µA) 7700 Duty cycle (max) (%) 100
LQFN-CLIP (RVF) 40 35 mm² 7 x 5
  • 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
  • 2 PMBus Addresses (Master 36d/Slave 37d)
  • Selectable Boot-up Vout and Soft Start Values via Pin-Strapping
  • 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 TPS546C20A 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
  • 2 PMBus Addresses (Master 36d/Slave 37d)
  • Selectable Boot-up Vout and Soft Start Values via Pin-Strapping
  • 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 TPS546C20A With the WEBENCH® Power Designer

The TPS546C20A 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 TPS546C20A 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 TPS546C20A 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 TPS546C20A 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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類型 標題 日期
* Data sheet TPS546C20A 4.5-V to 18-V, 35-A 2× Stackable Synchronous Buck Converters With PMBus Supporting Telemetry datasheet (Rev. C) PDF | HTML 2018年 6月 11日
User guide TPS546C20A 2-Phase SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2022年 2月 8日
Application note Programming the NVM of PMBus Buck Converters to Support Mass-Production Needs (Rev. B) 2019年 5月 13日
Technical article Powering FPGAs - What to consider with Xilinx UltraScale+ FPGAs PDF | HTML 2018年 1月 29日
Application note Analysis and Design of Input Filter for DC-DC Circuit 2017年 11月 27日
EVM User's guide TPS546C20AEVM1-746 Two, Separated Single-Phase Evaluation Module 2016年 6月 21日
Application note Method of Graphing Safe Operating Area (SOA) Curves in DC-DC Converter 2016年 3月 30日
Analog Design Journal MOSFET power losses and how they affect power-supply efficiency 2016年 1月 26日

設計與開發

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開發板

TPS546C20AEVM1-746 — TPS546C20A 35A PMBus 可堆疊同步降壓轉換器評估模組

The TPS546C20AEVM1-PWR746 evaluation module (EVM) uses the TPS546C20A. The TPS546C20A is a voltage mode, 35A synchronous buck converter with integrated MOSFETs. Two seperated converters are included on the EVM, both providing a 0.9V output at up to 35A from a 12V input bus.
使用指南: PDF
TI.com 無法提供
開發板

TPS546C20AEVM2-746 — 具有 PMBUS 的 TPS546C20A 雙相評估模組

The TPS546C20AEVM2-PWR746 evaluation module (EVM) uses two TPS546C20A devices. The TPS546C20A is a voltage mode, 35A synchronous buck converter with integrated MOSFETs. Two phase converters on the EVM provides a 0.9V output at up to 70A from a 12V input bus.
使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS546C20 PSpice Transient Model

SLUM530.ZIP (265 KB) - PSpice Model
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模擬型號

TPS546C20A SIMPLIS Transient Model

SLUM711.ZIP (1330 KB) - SIMPLIS Model
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計算工具

SLURB05 — TPS546C20A and TPS546C23 Excel Calculator and Layout 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)
TPS546C20A — 具 PMBus 和針腳設置的 4.5-V 至 18-V、可堆疊 35-A 同步 SWIFT™ 降壓轉換器 TPS546C23 — 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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參考設計

PMP20071 — 參考設計：8.5V-13.2V 轉 1.2V 50A DC/DC 轉換器

The TPS546C20A provides a single IC for both control & the synchronous power stage for high current DC/DC applications and allows doubling of the current capability with use of two of the same part.  Multi-phase also allows output ripple cancellation and effective higher bandwidth control (...)
Test report: PDF
電路圖: PDF
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LQFN-CLIP (RVF) 40 Ultra Librarian
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