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DC/DC 切換穩壓器
DC/DC 轉換器

TPS62825

現行

採用 1.5-mm x 1.5-mm QFN 封裝，具有 1% 準確度的 2.4-V 至 5.5-V 輸入、2-A 降壓轉換器

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產品規格表

TPS62825

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 1.8, 3.3, 4 Vout (min) (V) 0.6, 1.8, 3.3 Features Enable, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO fixed Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 100 Sector Robotics, Test & measurement
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 1.8, 3.3, 4 Vout (min) (V) 0.6, 1.8, 3.3 Features Enable, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO fixed Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 100 Sector Robotics, Test & measurement
VSON-HR (DMQ) 6 2.25 mm² (1.5 mm × 1.5 mm)
  • Available as an integrated-inductor power module: TPSM82821, TPSM82822, and TPSM82823
  • DCS-Control topology
  • 1% feedback or output voltage accuracy (full temperature range)
  • Up to 97% efficiency
  • 26mΩ and 25mΩ internal power MOSFETs
  • 2.4V to 5.5V input voltage range
  • 4µA operating quiescent current
  • 2.2MHz switching frequency
  • 0.6V to 4V adjustable output voltage
  • Power save mode for light load efficiency
  • 100% duty cycle for lowest dropout
  • Active output discharge
  • Power-good output
  • Thermal shutdown protection
  • Hiccup short-circuit protection
  • A forced-PWM version for CCM operation
  • Create a custom design using the TPS6282x with the WEBENCH Power Designer
  • Available as an integrated-inductor power module: TPSM82821, TPSM82822, and TPSM82823
  • DCS-Control topology
  • 1% feedback or output voltage accuracy (full temperature range)
  • Up to 97% efficiency
  • 26mΩ and 25mΩ internal power MOSFETs
  • 2.4V to 5.5V input voltage range
  • 4µA operating quiescent current
  • 2.2MHz switching frequency
  • 0.6V to 4V adjustable output voltage
  • Power save mode for light load efficiency
  • 100% duty cycle for lowest dropout
  • Active output discharge
  • Power-good output
  • Thermal shutdown protection
  • Hiccup short-circuit protection
  • A forced-PWM version for CCM operation
  • Create a custom design using the TPS6282x with the WEBENCH Power Designer

The TPS6282x is an easy-to-use, synchronous step-down DC/DC converters family with a very low quiescent current of only 4µA. Based on the DCS-Control topology, the device provides a fast transient response. The internal reference allows to regulate the output voltage down to 0.6V with a high feedback voltage accuracy of 1% over the junction temperature range of –40°C to 125°C. The family devices are pin-to-pin and BOM-to-BOM compatible. The entire design requires a small 470nH inductor, a single 4.7µF input capacitor, and two 10µF or single 22µF output capacitor.

The TPS6282x is available in two flavors. The first includes an automatically entered power save mode to maintain high efficiency down to very light loads for extending the system battery run-time. The second runs in forced-PWM maintaining a continuous conduction mode to make sure of the least ripple in the output voltage and a quasi-fixed switching frequency. The device features a Power-Good signal and an internal soft-start circuit. The device is able to operate in 100% mode. For fault protection, the device incorporates a HICCUP short-circuit protection as well as a thermal shutdown. The device is available in a 6-pin 1.5mm × 1.5mm QFN package, offering the highest power density design.

The TPS6282x is an easy-to-use, synchronous step-down DC/DC converters family with a very low quiescent current of only 4µA. Based on the DCS-Control topology, the device provides a fast transient response. The internal reference allows to regulate the output voltage down to 0.6V with a high feedback voltage accuracy of 1% over the junction temperature range of –40°C to 125°C. The family devices are pin-to-pin and BOM-to-BOM compatible. The entire design requires a small 470nH inductor, a single 4.7µF input capacitor, and two 10µF or single 22µF output capacitor.

The TPS6282x is available in two flavors. The first includes an automatically entered power save mode to maintain high efficiency down to very light loads for extending the system battery run-time. The second runs in forced-PWM maintaining a continuous conduction mode to make sure of the least ripple in the output voltage and a quasi-fixed switching frequency. The device features a Power-Good signal and an internal soft-start circuit. The device is able to operate in 100% mode. For fault protection, the device incorporates a HICCUP short-circuit protection as well as a thermal shutdown. The device is available in a 6-pin 1.5mm × 1.5mm QFN package, offering the highest power density design.
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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 TPS6282x 2.4V to 5.5V Input, 1, 2, 3, 4A Step-Down Converter With 1% Output Accuracy datasheet (Rev. I) PDF | HTML 2024/3/11
應用說明 QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/6
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
Application brief Powering VCCINT_VCU Rail in Xilinx® Zynq®UltraScale+™ Family of Multiprocessors PDF | HTML 2020/6/8
類比設計期刊 Methods of output-voltage adjustment for DC/DC converters 2019/6/14
應用說明 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018/12/11
技術文章 QFN soldering tips and tricks PDF | HTML 2018/11/26
應用說明 Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 2018/8/24
類比設計期刊 Understanding 100% mode in low-power DC/DC converters 2018/6/22
技術文章 Output accuracy varies with temperature – 1% is not always 1% PDF | HTML 2018/5/2
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 Testing tips for applying external power to supply outputs without an input voltage 2016/10/24
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 Accurately measuring efficiency of ultralow-IQ devices 2014/1/22
類比設計期刊 High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 2013/7/25
類比設計期刊 Design considerations for a resistive feedback divider in a DC/DC converter 2012/4/26
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
類比設計期刊 IQ: What it is, what it isn’t, and how to use it 2011/6/17

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

TPS62825EVM-794 — 具有 1% 輸出準確度的 1.5 mm x 1.5 mm QFN 封裝、2-A 降壓轉換器評估模組

TPS62825EVM-794 評估模組 (EVM) 的設計目的在協助使用者輕鬆評估和測試 TPS62825 DCS-Control 降壓式（降壓）轉換器的運作和功能性。該 EVM 可在高達 2-A 的輸出電流下，將 2.4-V 至 5.5-V 的輸入電壓轉換為具有 1% 準確度的 1.8V 穩壓輸出電壓，最大解決方案高度為 1mm。TPS62825 採用小型 1.5 x 1.5mm² QFN 封裝，是一款高效率的小型解決方案，適合於所有類型設備中的負載點 (POL) 轉換器，例如固態硬碟 (SSD)、運算和工廠自動化。

使用指南: PDF
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模擬型號

TPS62825 PSpice Unencrypted Transient Model (Rev. A)

SLVMCL1A.ZIP (748 KB) - PSpice 模型
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模擬型號

TPS62825 SIMPLIS Transient Model

SLVMDA0.ZIP (264 KB) - SIMPLIS 模型
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模擬型號

TPS6282518 PSpice Transient Model

SLVMCL2.ZIP (723 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-010224 — 可延長電池壽命的低功耗無線攝影機參考設計

此參考設計結合領先業界的影像處理、連線、感測器和電源，可為電池供電無線攝影機提供解決方案。高效電源轉換器與最佳化系統架構，有助於延長電池壽命。影像
具有 Wi-Fi® 連接裝置的處理器可實現安全高品質即時視訊串流和雙向音訊串流，並具有降噪和迴聲消除功能。此設計包含紅外線 (IR) LED 與 IR Cut 濾波器，以提供夜視功能。
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參考設計

TIPA-050009 — 使用 DDR4 的 AM62x 離散式電源供應解決方案

此電源供應設計展示了使用低成本離散式電壓穩壓器且適用於 AM62x 處理器的電源樹，並詳細說明 AM62x 不同電壓軌的特定通電/斷電順序要求。

 

AM62x 是異質 ARM® 處理器 Sitara™ 工業級系列的延伸，具備嵌入式 3D 繪圖加速、雙顯示介面，以及廣泛的周邊設備和網路選項。低成本 AM62x Sitara 處理器可協助客戶降低系統設計複雜性和成本。AM62x 適合各種工業應用，包括工業 HMI (人機介面)、EV 充電站、非接觸式建築物門禁和駕駛監控系統。

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參考設計

TIPA-050012 — 使用 TPS65381x-Q1 PMIC 的 TMS470 電源供應設計

此電源供應設計概述針對 TMS470 供電最佳化的電源管理 IC，且文件詳細說明了可協助開發人員將 TPS65381x-Q1 PMIC 整合至安全相關系統的資訊。

TPS65381x-Q1 裝置是多軌電源供應器，專為對安全相關應用中的微控制器 (MCU) 供電所設計，例如可在汽車與工業市場中看到的應用。裝置支援 TMS570 MCU 和 C2000 微控制器系列，以及具有雙核心鎖步 (LS) 或鬆散耦合架構 (LC) 的其他各種 MCU。

TPS65381x-Q1 整合多個供應軌，可為 MCU、收發器 (CAN 或其他) 和外部感測器供電。以內部 FET 將輸入電源 (電池) 轉換成 6V (...)

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VSON-HR (DMQ) 6 Ultra Librarian
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