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TPS62090-Q1

現行

汽車: 3A、2.5 至 6V 輸入、高達 97% 效率、3x3 QFN 降壓轉換器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
TPS62813-Q1 現行 具有固定 Fsw 和 SYNC 並採用 2 mm x 3 mm 可潤濕側翼封裝的車用 2.75V 至 6V、3A 降壓轉換器 New generation with smaller solution size and higher efficiency

TPS62090-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.5 Vout (max) (V) 6 Vout (min) (V) 0.8 Features Enable, Light Load Efficiency, Light load efficiency, Output discharge, Power good, Synchronous Rectification, Tracking Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00002 Duty cycle (max) (%) 100
Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.5 Vout (max) (V) 6 Vout (min) (V) 0.8 Features Enable, Light Load Efficiency, Light load efficiency, Output discharge, Power good, Synchronous Rectification, Tracking Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00002 Duty cycle (max) (%) 100
VQFN (RGT) 16 9 mm² 3 x 3
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C junction operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C6
  • 2.5V to 6V input voltage range
  • DCS-Control
  • 95% converter efficiency
  • Power save mode
  • 20µA operating quiescent current
  • 100% duty cycle for lowest dropout
  • 2.8MHz and 1.4MHz typical switching frequency
  • 0.8V to VIN adjustable output voltage
  • Output discharge function
  • Adjustable soft start
  • Hiccup short-circuit protection
  • Output voltage tracking
  • Wide output capacitance selection
  • Available in 3mm × 3mm, 16-pin QFN package
  • New product available: TPS62813-Q1, 6V step-down converter in 2mm × 3mm QFN package with wettable flanks
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C junction operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C6
  • 2.5V to 6V input voltage range
  • DCS-Control
  • 95% converter efficiency
  • Power save mode
  • 20µA operating quiescent current
  • 100% duty cycle for lowest dropout
  • 2.8MHz and 1.4MHz typical switching frequency
  • 0.8V to VIN adjustable output voltage
  • Output discharge function
  • Adjustable soft start
  • Hiccup short-circuit protection
  • Output voltage tracking
  • Wide output capacitance selection
  • Available in 3mm × 3mm, 16-pin QFN package
  • New product available: TPS62813-Q1, 6V step-down converter in 2mm × 3mm QFN package with wettable flanks

The TPS62090-Q1 devices are a family of high-frequency, synchronous, step-down converters optimized for small design size, high efficiency, and are designed for battery-powered applications. To maximize efficiency, the converters operate in pulse width modulation (PWM) mode with a nominal switching frequency of 2.8MHz to 1.4MHz and automatically enter power save mode operation at light load currents. When used in distributed power supplies and point-of-load regulation, the devices allow voltage tracking to other voltage rails and tolerate output capacitors ranging from 10µF up to 150µF and beyond. Using the DCS-Control topology, the devices achieve excellent load transient performance and accurate output voltage regulation.

The output voltage start-up ramp is controlled by the SS pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable and power good pins. In power save mode, the devices operate at typically 20µA quiescent current. Power save mode is entered automatically and seamlessly maintaining high efficiency over the entire load current range.

The TPS62090-Q1 devices are a family of high-frequency, synchronous, step-down converters optimized for small design size, high efficiency, and are designed for battery-powered applications. To maximize efficiency, the converters operate in pulse width modulation (PWM) mode with a nominal switching frequency of 2.8MHz to 1.4MHz and automatically enter power save mode operation at light load currents. When used in distributed power supplies and point-of-load regulation, the devices allow voltage tracking to other voltage rails and tolerate output capacitors ranging from 10µF up to 150µF and beyond. Using the DCS-Control topology, the devices achieve excellent load transient performance and accurate output voltage regulation.

The output voltage start-up ramp is controlled by the SS pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable and power good pins. In power save mode, the devices operate at typically 20µA quiescent current. Power save mode is entered automatically and seamlessly maintaining high efficiency over the entire load current range.
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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet TPS62090-Q1 3A, High-Efficiency, Automotive, Synchronous Step-Down Converter With DCS-Control datasheet (Rev. D) PDF | HTML 2025年 6月 6日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Functional safety information TPS62090-Q1 Pin FMA PDF | HTML 2022年 8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
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018年 6月 22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
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) 2012年 8月 9日
Application note Optimizing the TPS62090 Output Filter 2012年 5月 11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

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)。

模擬型號

TPS62090 PSpice Unencrypted Transient Model (Rev. A)

SLVM563A.ZIP (24 KB) - PSpice Model
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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

PMP22030 — 適用於車載資訊娛樂系統顯示器的高效、低熱、符合 CISPR 25 5 類標準電源參考設計

此參考設計著重於汽車資訊娛樂顯示單元的電源樹，涵蓋各種電源供應軌，包括兩個提供 5.0-V 與 3.3-V 的無電池轉換器，以及 1.8-V 與 1.1-V 的中間系統軌。測試結果證明效率高、散熱低，符合 CISPR 25 第 5 級傳導式排放規範。 
Test report: PDF
電路圖: PDF
參考設計

TIDA-00675 — 使用動態切換的功率降低參考設計

The TIDA-00675 shows the power reduction benefits of dynamically switching a load on/off using a load switch. The design guide shows how frequency of switching, duty cycle, and the use of a discharge resistor can have an impact on power consumption.
Design guide: PDF
電路圖: PDF
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VQFN (RGT) 16 Ultra Librarian
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