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DC/DC 轉換器

TPS62875-Q1

現行

車用、2.7V 至 6V 輸入、20A 可堆疊同步降壓轉換器

立即訂購
產品規格表

TPS62875-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Topology Buck, Multiphase, Step-Down Converter, Synchronous Buck Iout (max) (A) 20 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 1.675 Vout (min) (V) 0.4 Switch current limit (typ) (A) 28.5 Features Adaptive/Dynamic Voltage Scaling, Differential Remote Sense, Enable, Fixed Output, Forced PWM, Frequency synchronization, I2C, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft start, Spread Spectrum Clocking (SSC), Synchronous Rectification, UVLO, Wettable flanks package EMI features Frequency Dithering, Low parasitic Hotrod packaging, Spread Spectrum Control mode COT, Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00175 Duty cycle (max) (%) 75
Rating Automotive Topology Buck, Multiphase, Step-Down Converter, Synchronous Buck Iout (max) (A) 20 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 1.675 Vout (min) (V) 0.4 Switch current limit (typ) (A) 28.5 Features Adaptive/Dynamic Voltage Scaling, Differential Remote Sense, Enable, Fixed Output, Forced PWM, Frequency synchronization, I2C, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft start, Spread Spectrum Clocking (SSC), Synchronous Rectification, UVLO, Wettable flanks package EMI features Frequency Dithering, Low parasitic Hotrod packaging, Spread Spectrum Control mode COT, Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00175 Duty cycle (max) (%) 75
WQFN-FCRLF (RZV) 24 12.3525 mm² (3.05 mm × 4.05 mm)
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C TA
    • –40°C to 150°C junction temperature range
  • Functional Safety-Capable
  • Input voltage range: 2.7V to 6V
  • Family of pin-to-pin compatible devices: 15A, 20A, 25A, and 30A
  • Three selectable output voltage ranges from 0.4V to 1.675V
    • 0.4V to 0.71875V with 1.25mV steps
    • 0.4V to 1.0375V with 2.5mV steps
    • 0.4V to 1.675V with 5mV steps
  • Output voltage accuracy: ±0.8%
  • Internal power MOSFETs: 2.6mΩ and 1.5mΩ
  • Adjustable soft start
  • External compensation
  • Selectable start-up output voltage through the VSEL pin
  • Selectable switching frequency of 1.5MHz, 2.25MHz, 2.5MHz, or 3MHz through FSEL pin
  • Forced PWM or power-save mode operation
  • Start-up output voltage selection by external resistor or I2C
  • I2C-compatible interface with up to 3.4MHz
  • Optional stacked operation for increased output current capability
  • Differential remote sense
  • Thermal pre-warning and thermal shutdown
  • Output discharge
  • Optional spread spectrum clocking
  • Power-good output with window comparator
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C TA
    • –40°C to 150°C junction temperature range
  • Functional Safety-Capable
  • Input voltage range: 2.7V to 6V
  • Family of pin-to-pin compatible devices: 15A, 20A, 25A, and 30A
  • Three selectable output voltage ranges from 0.4V to 1.675V
    • 0.4V to 0.71875V with 1.25mV steps
    • 0.4V to 1.0375V with 2.5mV steps
    • 0.4V to 1.675V with 5mV steps
  • Output voltage accuracy: ±0.8%
  • Internal power MOSFETs: 2.6mΩ and 1.5mΩ
  • Adjustable soft start
  • External compensation
  • Selectable start-up output voltage through the VSEL pin
  • Selectable switching frequency of 1.5MHz, 2.25MHz, 2.5MHz, or 3MHz through FSEL pin
  • Forced PWM or power-save mode operation
  • Start-up output voltage selection by external resistor or I2C
  • I2C-compatible interface with up to 3.4MHz
  • Optional stacked operation for increased output current capability
  • Differential remote sense
  • Thermal pre-warning and thermal shutdown
  • Output discharge
  • Optional spread spectrum clocking
  • Power-good output with window comparator

The TPS62874-Q1, TPS62875-Q1, TPS62876-Q1 and TPS62877-Q1 are a family of pin-to-pin, 15A, 20A, 25A, and 30A synchronous step-down DC/DC converters with I2C interface and differential remote sense. All devices offer high efficiency and ease of use. Low-resistance power switches allow up to 30A output current at high ambient temperature. The devices can operate in stacked mode to deliver higher output currents or to spread the power dissipation across multiple devices.

The TPS6287x-Q1 family implements a fixed-frequency DCS-Control scheme that supports a fast transient response. The devices can operate in power-save mode for maximum efficiency or forced-PWM mode for best transient performance and lowest output voltage ripple.

An optional remote sensing feature maximizes voltage regulation at the point-of-load, and the device achieves ±0.8% DC voltage accuracy for the full output voltage range.

The switching frequency is selectable through the FSEL pin, and can be set to 1.5MHz, 2.25MHz, 2.5MHz, or 3MHz, or synchronized to an external clock in the same frequency range.

The I2C compatible interface offers several control, monitoring and warning features, such as voltage monitoring and temperature related warnings. The output voltage can be quickly adjusted to adapt the load´s power consumption to the performance needs. The default start-up voltage is resistor selectable through the VSEL pin.

The TPS62874-Q1, TPS62875-Q1, TPS62876-Q1 and TPS62877-Q1 are a family of pin-to-pin, 15A, 20A, 25A, and 30A synchronous step-down DC/DC converters with I2C interface and differential remote sense. All devices offer high efficiency and ease of use. Low-resistance power switches allow up to 30A output current at high ambient temperature. The devices can operate in stacked mode to deliver higher output currents or to spread the power dissipation across multiple devices.

The TPS6287x-Q1 family implements a fixed-frequency DCS-Control scheme that supports a fast transient response. The devices can operate in power-save mode for maximum efficiency or forced-PWM mode for best transient performance and lowest output voltage ripple.

An optional remote sensing feature maximizes voltage regulation at the point-of-load, and the device achieves ±0.8% DC voltage accuracy for the full output voltage range.

The switching frequency is selectable through the FSEL pin, and can be set to 1.5MHz, 2.25MHz, 2.5MHz, or 3MHz, or synchronized to an external clock in the same frequency range.

The I2C compatible interface offers several control, monitoring and warning features, such as voltage monitoring and temperature related warnings. The output voltage can be quickly adjusted to adapt the load´s power consumption to the performance needs. The default start-up voltage is resistor selectable through the VSEL pin.

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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 TPS6287x-Q1 2.7V to 6V Input, 15A, 20A, 25A, and 30A Automotive, Fast Transient, Synchronous Step-Down Converter With I2 C Interface and Remote Sense datasheet (Rev. F) PDF | HTML 2026/3/5
Product overview Mobileye EyeQ™6H – Discrete Power Tree PDF | HTML 2024/11/7
Application brief Increasing Further Data Rates Using High-Current Power Converters in Optical Modules PDF | HTML 2024/9/26
Product overview J722S/AM67x/TDA4VEN/TDA4AEN Processor Automotive Power Designs using TPS6522312-Q1 PMIC PDF | HTML 2024/4/18
測試報告 Power Delivery Reference Design for AMD Versal™ AI Edge Series PDF | HTML 2024/3/25
類比設計期刊 固定頻率 DCS-Control：具有時脈同步的快速瞬態回應 PDF | HTML Download English Version PDF | HTML 2024/2/13
技術文章 How to deliver current beyond 100 A to an ADAS processor PDF | HTML 2024/1/4
應用說明 QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/6
應用說明 Benefiting from Step-Down Converters with an I2C Communication Interface (Rev. B) PDF | HTML 2023/11/29
功能安全資訊 TPS62874-Q1, TPS62875-Q1, TPS62876-Q1 and TPS62877- Q1 Functional Safety FIT Rat 2023/3/14
應用說明 Using the Filters with the DC/DC Step-Down Converter PDF | HTML 2023/2/2
應用說明 Operating TPS6287X-Q1 Devices in a Stacked Configuration PDF | HTML 2023/1/30
應用說明 Adjusting the Output Voltage of a Fixed Output Voltage DC-DC Converter PDF | HTML 2022/12/22
應用說明 Understanding SOA Curves to Operate at High Output Currents and Temperature PDF | HTML 2022/5/5
應用說明 Loop Gain Reconstruction of a Step-Down Converter from Output Impedance PDF | HTML 2022/1/20
應用說明 How to Measure Impedance of a Power Distribution Network of a DC-DC Converter PDF | HTML 2022/1/20
白皮書 Enabling Higher Data Rates for Optical Modules With Small and Efficient Power PDF | HTML 2021/3/22
白皮書 Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 2019/10/14
類比設計期刊 Methods of output-voltage adjustment for DC/DC converters 2019/6/14
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
類比設計期刊 Understanding frequency variation in the DCS-Control(TM) topology 2015/10/30
應用說明 Basic Calculation of a Buck Converter's Power Stage (Rev. B) PDF | HTML 2015/8/17
類比設計期刊 Five steps to a great PCB layout for a step-down converter 2015/1/29
類比設計期刊 High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 2013/7/25
應用說明 Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012/1/13
應用說明 Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 2011/9/19

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

TPS62876EVM-198 — TPS62876-Q1 評估模組 2.7-V 至 6-V 輸入降壓轉換器

TPS62876EVM-198 評估模組 (EVM) 的設計目的在協助使用者輕鬆評估和測試 TPS62876-Q1 降壓轉換器的運作和功能性。亦可用於評估 TPS62874-Q1、TPS62875-Q1 及 TPS62877-Q1 裝置。EVM 可將 2.7 V 至 6.0 V 輸入電壓轉換為已調節的 0.75 V 輸出電壓。輸出電流最高可達 25 A。

使用指南: PDF | HTML
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開發板

TPS62876EVM-199 — TPS62876-Q1 評估模組 75-A 輸出可堆疊降壓式轉換器

TPS62876EVM-199 評估模組 (EVM) 的設計目的旨在幫助使用者輕鬆評估及測試三個 TPS62876-Q1 降壓轉換器的疊堆配置運作及功能性。該模組亦可用於評估 TPS62874-Q1、TPS62875-Q1 和 TPS62877-Q1 裝置。EVM 可將 2.7 V 至 6.0 V 輸入電壓轉換為已調節的 0.75 V 輸出電壓。輸出電流最高可達 75 A。

使用指南: PDF | HTML
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模擬型號

TPS6287x-Q1, TPS6287B1x, TPS6287B2x PSpice Model

SLUM880.ZIP (573 KB) - PSpice 模型
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模擬型號

TPS6287x-Q1, TPS6287B1x, TPS6287B2x SIMPLIS Model

SLVME13.ZIP (287 KB) - SIMPLIS 模型
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參考設計

TIPA-020000 — Mobileye EyeQ™6H 電源供應設計

此電源設計是適用於 Mobileye EyeQ™6H SoC 的離散式電源樹狀結構測試報告摘要。自動駕駛輔助系統 (ADAS) 等汽車應用採用 Mobileye EyeQ™6H 等 ADAS 網域控制器處理器。這些精密的處理器需要在極低的電壓下具有非常高的電流。這些處理器也需要非常快速的輸出電壓暫態響應，以因應處理器負載電流的步進變化。此德州儀器設計以有效率、符合成本效益的方式滿足快速暫態響應的嚴格要求。

這種離散式方法可實現負載點轉換器最佳放置，同時仍可提供具最小輸出電容的小型設計尺寸。

多通道電壓監控器用於監控所有 SoC 相關的電源軌。電源排序可透過任何外部安全 MCU 實作。

此電源設計的 (...)

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參考設計

TIPA-020001 — 使用 AutoChips™ AC8025 SoC 的電源供應設計

此概念驗證詳細說明採用電源管理 IC (PMIC) 設計的 AC8025 (來自 AutoChips™) 系統單晶片(SoC) 電源軌的離散式電源設計之設計考量。此設計使用 TPS6593-Q1 PMIC、 ， TPS62875-Q1 同步降壓轉換器及 TPS745-Q1 低壓降 (LDO) 穩壓器。原始電源是電池。電池電壓經轉換後可調節 5V 或 3.8V 匯流排。LM25149-Q1 將電池電壓轉換為調節匯流排電壓。此設計中的所有元件皆符合車用資格。
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參考設計

TIPA-050022 — Mobileye EQ6L 分離式電源供應設計

此電源設計是適用於 Mobileye EyeQ6Lite® SoC 的 TI 半離散式電源樹狀結構測試報告摘要。自動駕駛輔助系統 (ADAS) 等汽車應用採用 Mobileye EyeQ6L 等 ADAS 網域控制器處理器。這些精密的處理器需要在極低的電壓下具有非常高的電流。這些處理器也需要非常快速的輸出電壓暫態響應，以因應處理器負載電流的步進變化。

此電源供應器設計以有效率、符合成本效益的方式滿足快速暫態響應的嚴格要求。下圖所示的半離散方法，結合了 PMIC 和離散式穩壓器，可將負載點轉換器放在最佳位置，同時仍提供具有最小輸出電容的小型解決方案尺寸。

PMIC (...)

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