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DC/DC 切換穩壓器
DC/DC 轉換器

TPS62866

現行

採用 1.05 mm × 1.78 mm WCSP 封裝且具有 I2C 介面的 5.5V、6A 同步降壓轉換器

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產品規格表

TPS62866

現行
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) 2.5 Vout (max) (V) 1.675 Vout (min) (V) 0.4 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, I2C/PMBus, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO Fixed, UVLO fixed, VID Interface EMI features Low parasitic Hotrod packaging Control mode COT, Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000005 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) 2.5 Vout (max) (V) 1.675 Vout (min) (V) 0.4 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, I2C/PMBus, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO Fixed, UVLO fixed, VID Interface EMI features Low parasitic Hotrod packaging Control mode COT, Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000005 Duty cycle (max) (%) 100
DSBGA (YCG) 15 1.8375 mm² (1.75 mm × 1.05 mm)
  • 7-mΩ and 6.5-mΩ internal power MOSFETs
  • >90% efficiency (0.9-V output)
  • DCS-control topology for fast transient response
  • 1% output voltage accuracy
  • 4-µA operating quiescent current
  • 2.4-V to 5.5-V input voltage range
  • 2.4-MHz switching frequency
  • Selection by external resistor
    • Start-up output voltage
    • I2C slave address
  • Selection by I2C interface
    • Power save mode or forced PWM mode
    • Output discharge
    • Hiccup or latching short-circuit protection
    • Output voltage ramp speed
  • VID pin for dynamic voltage scaling (DVS)
  • Thermal pre-warning and thermal shutdown
  • Power good indicator pin option
  • I2C-compatible interface up to 3.4 Mbps
  • Available in 1.05-mm x 1.78-mm x 0.5-mm 15-pin WCSP package with 0.35-mm pitch
  • Create a custom design using the TPS62866 with the WEBENCH® Power Designer
  • 7-mΩ and 6.5-mΩ internal power MOSFETs
  • >90% efficiency (0.9-V output)
  • DCS-control topology for fast transient response
  • 1% output voltage accuracy
  • 4-µA operating quiescent current
  • 2.4-V to 5.5-V input voltage range
  • 2.4-MHz switching frequency
  • Selection by external resistor
    • Start-up output voltage
    • I2C slave address
  • Selection by I2C interface
    • Power save mode or forced PWM mode
    • Output discharge
    • Hiccup or latching short-circuit protection
    • Output voltage ramp speed
  • VID pin for dynamic voltage scaling (DVS)
  • Thermal pre-warning and thermal shutdown
  • Power good indicator pin option
  • I2C-compatible interface up to 3.4 Mbps
  • Available in 1.05-mm x 1.78-mm x 0.5-mm 15-pin WCSP package with 0.35-mm pitch
  • Create a custom design using the TPS62866 with the WEBENCH® Power Designer

The TPS62864 and TPS62866 devices are high-frequency synchronous step-down converters with I2C interface which provide an efficient, adaptive, and high power-density solution. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load to maintain high efficiency over the entire load current range. The device can also be forced in PWM mode operation for smallest output voltage ripple. Together with its DCS-control architecture, excellent load transient performance and tight output voltage accuracy are achieved. Via the I2C interface and a dedicated VID pin, the output voltage is quickly adjusted to adapt the power consumption of the load to the ever-changing performance needs of the application.

The TPS62864 and TPS62866 devices are high-frequency synchronous step-down converters with I2C interface which provide an efficient, adaptive, and high power-density solution. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load to maintain high efficiency over the entire load current range. The device can also be forced in PWM mode operation for smallest output voltage ripple. Together with its DCS-control architecture, excellent load transient performance and tight output voltage accuracy are achieved. Via the I2C interface and a dedicated VID pin, the output voltage is quickly adjusted to adapt the power consumption of the load to the ever-changing performance needs of the application.
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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 QFN package alternative.
功能相似於所比較的產品。
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 DC/DC alternative in QFN with FB-pin.

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 TPS62864/6 2.4-V to 5.5-V Input, 4-A and 6-A Synchronous Step-Down Converter with I2C Interface in WCSP Package datasheet (Rev. C) PDF | HTML 2020/10/1
應用說明 Closed Loop Constant Power Drive to Simplify Heater Element Control and Extend Battery Life PDF | HTML 2025/1/29
應用說明 Benefiting from Step-Down Converters with an I2C Communication Interface (Rev. B) PDF | HTML 2023/11/29
應用說明 Intro to Multi-Function Pins and Their Applications in TI Step-Down Converters (Rev. A) PDF | HTML 2022/11/17
應用說明 Understanding SOA Curves to Operate at High Output Currents and Temperature PDF | HTML 2022/5/5
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
應用說明 Thermal Performance Optimization of High Power Density Buck Converters PDF | HTML 2021/2/23
證書 TPS62866EVM-118 EU Declaration of Conformity (DoC) 2020/6/15
白皮書 Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 2019/10/14
技術文章 Layout matters: solving pinout assignment issues for DC/DC converters in WCSP pack PDF | HTML 2019/7/17
類比設計期刊 Methods of output-voltage adjustment for DC/DC converters 2019/6/14

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

TPS62866EVM-051 — 具 I2C 介面的高功率密度 6-A 降壓轉換器評估模組

TPS62866EVM-051 評估模組 (EVM) 有助於評估採用小型 1.05mm x 1.78mm WCSP 封裝、節距為 0.5mm 的 TPS62866 6 A 降壓轉換器。該 EVM 透過 I2C 的可編程輸出電壓為 0.4V 至 1.675V，在 2.4V 和 5.5V 之間的輸入電壓下具有 1% 的準確度。TPS62866 是一款高效率且高功率密度的解決方案，適合於有限空間應用的負載點 (POL) 轉換器，例如 FPGA ，攝影機模組及固態硬碟 (SSD)。

使用指南: PDF | HTML
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開發模組 (EVM) 的 GUI

SLUC676 — TPS62866EVM GUI for Windows

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開發模組 (EVM) 的 GUI

SLUC677 — TPS62866EVM GUI for MacOS

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開發模組 (EVM) 的 GUI

SLUC678 — TPS62866EVM GUI for Linux

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模擬型號

TPS62864 PSpice Unencrypted Transient Model (Rev. B)

SLUM687B.ZIP (95 KB) - PSpice 模型
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模擬型號

TPS628640B PSpice Unencrypted Transient Model

SLUM742.ZIP (279 KB) - PSpice 模型
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模擬型號

TPS62866 PSpice Unencrypted Transient Model (Rev. B)

SLUM686B.ZIP (101 KB) - PSpice 模型
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模擬型號

TPS628660B PSpice Unencrypted Transient Model

SLUM741.ZIP (316 KB) - PSpice 模型
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模擬型號

TPS6286612 PSpice Transient Model

SLUM735.ZIP (107 KB) - PSpice 模型
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DSBGA (YCG) 15 Ultra Librarian
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