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参数

Vin (Min) (V) 2.95 Vin (Max) (V) 16 Vout (Min) (V) 0.25 Vout (Max) (V) 5.5 Iout (Max) (A) 40 Iq (Typ) (mA) 9 Switching frequency (Min) (kHz) 225 Switching frequency (Max) (kHz) 1500 Features Adaptive/Dynamic Voltage Scaling, Adjustable Current Limit, Differential Remote Sense, Enable, Forced PWM, Frequency Synchronization, Over Current Protection, I2C/PMBus, Phase Interleaving, Power Good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO Adjustable, Voltage Margining Operating temperature range (C) -40 to 150 Rating Catalog Regulated outputs (#) 1 open-in-new 查找其它 降压转换器(集成开关)

封装|引脚|尺寸

LQFN-CLIP (RVF) 40 35 mm² 7 x 5 open-in-new 查找其它 降压转换器(集成开关)

特性

  • Split rail support: 2.95-V to 16-V PVIN;
    2.95-V to 18-V AVIN (4-VIN VDD5 for switching)
  • Integrated 4.5-mΩ/0.9-mΩ MOSFETs
  • Average current mode control with selectable internal compensation
  • 2×, 3x, 4× stackable with current sharing up to 160 A, supporting a single address per output
  • Selectable 0.6-V to 5.5-V output via pin strap or 0.25-V to 6.0-V using PMBus VOUT_COMMAND
  • Extensive PMBus command set with telemetry for VOUT, IOUT and internal die temperature
  • Differential remote sensing with internal FB divider for < 1% VOUT error –40°C to +150°C TJ
  • AVS and margining capabilities through PMBus
  • MSEL pins pin programming PMBus defaults
  • 12 Selectable switching frequencies from 225 kHz to 1.5 MHz (8 pin-strap options)
  • Frequency sync in/sync out
  • Supports prebiased output
  • Supports strongly coupled inductor
  • 7 mm × 5 mm × 1.5 mm, 40-pin QFN,
    Pitch = 0.5 mm
  • Create a Custom Design Using the TPS546D24A With WEBENCH® Power Designer

All trademarks are the property of their respective owners.

open-in-new 查找其它 降压转换器(集成开关)

描述

The TPS546D24A is a highly integrated, non-isolated DC/DC converter capable of high frequency operation and 40-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546D24A devices can be interconnected to provide up to 160 A on a single output. The device has an option to overdrive the internal 5-V LDO with an external 5-V supply via the VDD5 pin to improve efficiency and reduce power dissipation of the converter.

The TPS546D24A uses a proprietary fixed-frequency current-mode control with input feedforward and selectable internal compensation components for minimal size and stability over a wide range of output capacitances.

The PMBus interface with 1-MHz clock support gives a convenient, standardized digital interface for converter configuration as well as monitoring of key parameters including output voltage, output current, and internal die temperature. Response to fault conditions can be set to restart, latch off, or ignore, depending on system requirements. Back-channel communication between stacked devices enables all TPS546D24A converters powering a single output rail to share a single address to simplify system software/firmware design. Key parameters including output voltage, switching frequency, soft-start time, and overcurrent fault limits can also be configured through BOM selection without PMBus communication to support program free power-up.

open-in-new 查找其它 降压转换器(集成开关)
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技术文档

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类型 标题 下载最新的英文版本 发布
* 数据表 TPS546D24A 2.95-V to 16-V, 40-A, up to 4x stackable, PMBus buck converter 数据表 2019年 2月 13日
应用手册 The Essential Collection of DC/DC Buck Switching Regulator Application Notes 2020年 6月 12日
技术文章 3 big benefits of small cells 2020年 5月 26日
应用手册 Optimizing the Integrated Loop Compensation to Minimize On-Time Jitter and Outpu 2020年 5月 11日
技术文章 Advantages of scalability: from Peter Parker to pin-strapping 2020年 4月 30日
选择指南 Buck Converter Quick Reference Guide 2020年 3月 31日
技术文章 SoC power design: 3 steps to a thermally optimized power supply 2020年 3月 8日
应用手册 Powering the TPS546D24A Device Family from a Single 3.3 V Input Power Supply 2020年 3月 4日
技术文章 35 years later, APEC continues to set the tone for innovation in power management 2020年 2月 27日
白皮书 Power solution options for data center applications 2020年 2月 27日
应用手册 Achieving better than 1% output voltage accuracy with TPS546D24A 2019年 12月 1日
应用手册 DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications 2019年 8月 14日
用户指南 Stacking TPS546D24A Two-Phase Evaluation Module 2019年 7月 30日
白皮书 Small cells, big impact: designing power soutions for 5G applications 2019年 6月 26日
应用手册 Non-isolated point-of-load solutions for VR13.HC in rack server &datacenter apps 2019年 3月 5日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
document-generic 用户指南
$199.00
说明
The TPS546D24AEVM-2PH evaluation module (EVM) is a two-phase buck converter with two TPS546D24A devices. The TPS546D24A device is a stackable synchronous buck with PMBus interface that can operate from a nominal 2.95-V to 16-V supply. The device allows programming and monitoring via the PMBus (...)
特性
  • 2x stacked devices with current sharing
  • Selectable internal compensation
  • PMBus programmable switching frequency from 225 kHz to 1.5 MHz
  • PMBus telemetry for VOUT, IOUT and internal die temperature
  • Adaptive voltage scaling (AVS) and margining
  • Remote differential remote sensing with internal FB divider for (...)

软件开发

应用软件和框架 下载
数字电源软件
FUSION_DIGITAL_POWER_DESIGNER Fusion Digital Power™  is the Graphical User Interface (GUI) 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.
特性

Some of the tasks you can perform with the GUI include:

  • Turn on or off the power supply output, either through the hardware control line or the PMBus OPERATION command
  • Monitor real-time data. Items such as input voltage, output voltage, output current, temperature, and warnings/faults are continuously (...)

设计工具和仿真

仿真模型 下载
SLUM704.ZIP (98 KB) - IBIS Model
仿真模型 下载
SLUM705.ZIP (69 KB) - PSpice Model
仿真模型 下载
SLUM707.ZIP (257 KB) - PSpice Model
仿真模型 下载
SLUM708.ZIP (189 KB) - PSpice Model
仿真模型 下载
SLUM725.ZIP (1791 KB) - SIMPLIS Model
GERBER 文件 下载
SLUC686A.ZIP (165 KB)

参考设计

参考设计 下载
适用于通信处理器电源的四相、160A 同步降压转换器参考设计
PMP21814 — This reference design uses four TPS546D24A converters with integrated MOSFETs to support a full load of 160A at a 0.9V output. The system operates at a switching frequency of 650 kHz and has a PMBus interface that can be used to configure key converter parameters, including internal compensation (...)
document-generic 原理图 document-generic 用户指南

CAD/CAE 符号

封装 引脚 下载
LQFN-CLIP (RVF) 40 了解详情

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