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DC/DC 轉換器

TPS62480

現行

6A、2.4V-5.5V 輸入、同步降壓轉換器，具有 PG 輸出、可調整緩啟動和選擇功能

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產品規格表

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TPS62869 現行 採用 1.5-mm x 2.5-mm QFN 封裝且具 I²C 介面的 5.5-V 6-A 同步降壓轉換器 Newer generation alternative with I2C interface and smaller solution size.
TPS62867 現行 採用 1.5-mm x 2.5-mm QFN 封裝的 2.4-V 至 5.5-V 輸入、6-A 同步降壓轉換器 Newer generation of 6-A devices with <30mm² total BOM size.

TPS62480

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck, Step-Down Converter, Synchronous Buck Iout (max) (A) 6 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light load efficiency, Multiphase, Output discharge, Over Current Protection, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO fixed, Voltage Margining Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000023 Duty cycle (max) (%) 100
Rating Catalog Topology Buck, Step-Down Converter, Synchronous Buck Iout (max) (A) 6 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light load efficiency, Multiphase, Output discharge, Over Current Protection, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO fixed, Voltage Margining Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000023 Duty cycle (max) (%) 100
VQFN-HR (RNC) 16 7.5 mm² (2.5 mm × 3 mm)
  • Dual Phase Current Mode Topology
  • Input Voltage Range 2.4 to 5.5 V
  • Output Voltage Range 0.6 to 5.5 V
  • Output Current of 6 A
  • Typical Quiescent Current of 23 µA
  • Feedback Voltage Accuracy of ±1% (PWM Mode)
  • Output Voltage Select
  • Phase Shifted Operation
  • Automatic Power Save Modes
  • Forced PWM Mode
  • Adjustable Soft Start
  • Power Good / Thermal Good Outputs
  • Undervoltage Lockout
  • Overcurrent and Short-Circuit Protection
  • Overtemperature Protection
  • 3 × 2.5 mm HotRod™ Package
  • Dual Phase Current Mode Topology
  • Input Voltage Range 2.4 to 5.5 V
  • Output Voltage Range 0.6 to 5.5 V
  • Output Current of 6 A
  • Typical Quiescent Current of 23 µA
  • Feedback Voltage Accuracy of ±1% (PWM Mode)
  • Output Voltage Select
  • Phase Shifted Operation
  • Automatic Power Save Modes
  • Forced PWM Mode
  • Adjustable Soft Start
  • Power Good / Thermal Good Outputs
  • Undervoltage Lockout
  • Overcurrent and Short-Circuit Protection
  • Overtemperature Protection
  • 3 × 2.5 mm HotRod™ Package

The TPS62480 is a synchronous 2-phase step-down DC-DC converter for low profile point-of-load power supplies. The input voltage range of 2.4 to 5.5 V enables operation from typical 3.3-V or 5-V interface supplies as well as from backup circuits dropping down as low as 2.4 V. The output current is up to 6 A continuously provided by two phases of 3 A each, allowing the use of low-profile external components. Both the rails are running out of phase, reducing pulse current noise significantly.

The TPS62480 provides an automatically entered power save mode to maintain high efficiency down to very light loads. This incorporates an automatic phase adding and shedding feature using both or only one phase according to the actual load.

The device features a Power Good signal and an adjustable soft start. Also, the device features a Thermal Good signal to detect excessive internal temperature. The output voltage can be changed to a preselected value by VSEL pin. TPS62480 is able to operate in 100% duty cycle mode.

The TPS62480 is packaged in a small 3 × 2.5 mm HotRod package (RNC).

The TPS62480 is a synchronous 2-phase step-down DC-DC converter for low profile point-of-load power supplies. The input voltage range of 2.4 to 5.5 V enables operation from typical 3.3-V or 5-V interface supplies as well as from backup circuits dropping down as low as 2.4 V. The output current is up to 6 A continuously provided by two phases of 3 A each, allowing the use of low-profile external components. Both the rails are running out of phase, reducing pulse current noise significantly.

The TPS62480 provides an automatically entered power save mode to maintain high efficiency down to very light loads. This incorporates an automatic phase adding and shedding feature using both or only one phase according to the actual load.

The device features a Power Good signal and an adjustable soft start. Also, the device features a Thermal Good signal to detect excessive internal temperature. The output voltage can be changed to a preselected value by VSEL pin. TPS62480 is able to operate in 100% duty cycle mode.

The TPS62480 is packaged in a small 3 × 2.5 mm HotRod package (RNC).
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TPS62A06A 現行 採用 SOT-563 封裝，且具有強制 PWM 的 2.5-V 至 5.5-V 輸入、6-A 高效率降壓轉換器 Newer generation converter in smaller SOT563 package
TPS62A06 現行 採用 SOT-563 封裝的 2.5-V 至 5.5-V 輸入、6-A、高效率降壓轉換器 Newer generation converter in smaller SOT563 package

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 TPS62480 2.4-V to 5.5-V, 6-A, 2-Phase Step-Down Converter datasheet (Rev. A) PDF | HTML 2016/2/29
應用說明 Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 2022/5/23
選擇指南 Buck Converter Quick Reference Guide (Rev. B) 2021/4/8
白皮書 Enabling Higher Data Rates for Optical Modules With Small and Efficient Power PDF | HTML 2021/3/22
類比設計期刊 Methods of output-voltage adjustment for DC/DC converters 2019/6/14
類比設計期刊 Understanding 100% mode in low-power DC/DC converters 2018/6/22
類比設計期刊 Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017/10/24
技術文章 Small and efficient power supply for the Altera™ MAX® 10 FPGA PDF | HTML 2017/4/24
類比設計期刊 Testing tips for applying external power to supply outputs without an input voltage 2016/10/24
技術文章 Using the thermal good function to increase reliability PDF | HTML 2016/10/11
類比設計期刊 Design considerations for a resistive feedback divider in a DC/DC converter 2012/4/26

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

TMDX654IDKEVM — AM65x 工業開發套件 (IDK)

AM65x 工業開發套件 (IDK) 是一款開發平台，可評估 Sitara ™ AM65x 處理器的工業通訊與控制功能，適用於工廠自動化，驅動器，機器人，電網基礎架構等應用。AM65x 處理器包含三個 PRU-ICSS（工業通訊可編程即時單元）子系統，可用於 Profinet、EtherCAT、EtherNet/IP 等 GB 工業乙太網路通訊協定。

使用指南: PDF | HTML
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開發板

TPS62480EVM-671 — 適用於 TPS62480 的 5.5V 輸入、6A 輸出、雙相降壓轉換器評估模組

TPS62480EVM-671 旨在協助使用者輕鬆評估和測試 TPS62480 的運作和功能。EVM 可在高達 6A 的輸出電流下，將 2.4V 至 5.5V 的輸入電壓轉換為 1.8V 穩壓輸出電壓。TPS62480 為小型 2.5 x 3.0mm² VSON 封裝。

使用指南: PDF
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模擬型號

TPS62480 PSpice Unencrypted Transient Model (Rev. B)

SLVMBH8B.ZIP (58 KB) - PSpice 模型
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計算工具

SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
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參考設計

TIDA-01366 — 適用於 Altera™ MAX® 10 FPGA 且最高可支援 125°C 工作溫度的小型高效率電源參考設計

TIDA-01366（亦稱為 PMP9799）專為 Altera 的 MAX® 10 FPGA 所設計。此參考設計採用三個 DC/DC 轉換器，以經濟高效的方式為 MAX-10 供電。此設計支援多種工業應用，以及任何需要小型化、高效率且耐高溫電源供應器的應用場景。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN-HR (RNC) 16 Ultra Librarian
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