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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

立即訂購
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
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
VSON-HR (DMQ) 6 2.25 mm² 1.5 x 1.5
  • 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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TPS62825A 現行 採用 1.5-mm × 1.5-mm VSON-HR 封裝，且具有強制 PWM 的 2.4-V 至 5.5-V 輸入、2-A 降壓轉換器 Pin-to-pin buck converter with forced PWM mode for low ripple

技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet TPS6282x 2.4V to 5.5V Input, 1, 2, 3, 4A Step-Down Converter With 1% Output Accuracy datasheet (Rev. I) PDF | HTML 2024年 3月 11日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 2021年 3月 22日
Application brief Powering VCCINT_VCU Rail in Xilinx® Zynq®UltraScale+™ Family of Multiprocessors PDF | HTML 2020年 6月 8日
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 2019年 6月 14日
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
Technical article QFN soldering tips and tricks PDF | HTML 2018年 11月 26日
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 2018年 8月 24日
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018年 6月 22日
Technical article Output accuracy varies with temperature – 1% is not always 1% PDF | HTML 2018年 5月 2日
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017年 10月 24日
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 2016年 10月 24日
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 2015年 10月 30日
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 2015年 8月 17日
Analog Design Journal Five steps to a great PCB layout for a step-down converter 2015年 1月 29日
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 2014年 1月 22日
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 2013年 7月 25日
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 2012年 4月 26日
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012年 1月 13日
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 2011年 9月 19日
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011年 6月 17日

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
TI.com 無法提供
模擬型號

TPS62825 PSpice Unencrypted Transient Model (Rev. A)

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

TPS62825 SIMPLIS Transient Model

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

TPS6282518 PSpice Transient Model

SLVMCL2.ZIP (723 KB) - PSpice Model
下載
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
支援產品和硬體

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Gerber 檔案

PWR794 Gerber

SLVC714.ZIP (344 KB)
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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。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSON-HR (DMQ) 6 Ultra Librarian
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