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AC/DC 和 DC/DC 轉換器 (整合式 FET)

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

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產品規格表

TPS62813-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 2.7 Vin (max) (V) 6 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed, UVLO fixed, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 0.6, 1, 1.35, 1.8 Vout (max) (V) 1, 1.35, 1.8, 5.5 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 2.7 Vin (max) (V) 6 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed, UVLO fixed, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 0.6, 1, 1.35, 1.8 Vout (max) (V) 1, 1.35, 1.8, 5.5 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
VQFN-HR (RWY) 9 6 mm² 3 x 2
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C TA
  • Functional Safety-Capable
  • Input voltage range: 2.75 V to 6 V
  • Family of 1 A, 2 A, 3 A and 4 A
  • Quiescent current 15-µA typical
  • Output voltage from 0.6 V to 5.5 V
  • Output voltage accuracy ±1% (PWM operation)
  • Adjustable soft start
  • Forced PWM or PWM and PFM operation
  • Adjustable switching frequency of 1.8 MHz to 4 MHz
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Spread spectrum clocking - optional
  • Power-good output with window comparator
  • Package with wettable flanks
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C TA
  • Functional Safety-Capable
  • Input voltage range: 2.75 V to 6 V
  • Family of 1 A, 2 A, 3 A and 4 A
  • Quiescent current 15-µA typical
  • Output voltage from 0.6 V to 5.5 V
  • Output voltage accuracy ±1% (PWM operation)
  • Adjustable soft start
  • Forced PWM or PWM and PFM operation
  • Adjustable switching frequency of 1.8 MHz to 4 MHz
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Spread spectrum clocking - optional
  • Power-good output with window comparator
  • Package with wettable flanks

The TPS6281x-Q1 is family of pin-to-pin 1-A, 2-A, 3-A, and 4-A synchronous step-down DC/DC converters. All devices offer high efficiency and ease of use. The TPS6281x-Q1 family is based on a peak current mode control topology. The TPS6281x-Q1 is designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 4-A continuous output current at high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PWM/PFM mode, the TPS6281x-Q1 automatically enter power save mode at light loads to maintain high efficiency across the whole load range. The TPS6281x-Q1 provide 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or forming tracking of the output voltage to an external source. This feature allows external sequencing of different supply rails and limiting the inrush current during start-up.

The TPS6281x-Q1 is available in a 3-mm × 2-mm VQFN package with wettable flanks.

The TPS6281x-Q1 is family of pin-to-pin 1-A, 2-A, 3-A, and 4-A synchronous step-down DC/DC converters. All devices offer high efficiency and ease of use. The TPS6281x-Q1 family is based on a peak current mode control topology. The TPS6281x-Q1 is designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 4-A continuous output current at high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PWM/PFM mode, the TPS6281x-Q1 automatically enter power save mode at light loads to maintain high efficiency across the whole load range. The TPS6281x-Q1 provide 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or forming tracking of the output voltage to an external source. This feature allows external sequencing of different supply rails and limiting the inrush current during start-up.

The TPS6281x-Q1 is available in a 3-mm × 2-mm VQFN package with wettable flanks.
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類型 標題 日期
* Data sheet TPS6281x-Q1 2.75-V to 6-V Adjustable-Frequency Step-Down Converter datasheet (Rev. J) PDF | HTML 2023年 3月 13日
Product overview Mobileye EyeQ™6H – Discrete Power Tree PDF | HTML 2024年 11月 7日
Application note Using the Filters with the DC/DC Step-Down Converter PDF | HTML 2023年 2月 2日
Application note How to Measure Impedance of a Power Distribution Network of a DC-DC Converter PDF | HTML 2022年 1月 20日
Application note Loop Gain Reconstruction of a Step-Down Converter from Output Impedance PDF | HTML 2022年 1月 20日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
EVM User's guide TPS62810EVM-015 Evaluation Module (Rev. A) PDF | HTML 2021年 3月 17日
Functional safety information TPS6281x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. C) PDF | HTML 2020年 12月 7日
White paper 簡化汽車及工業領域的功 能安全認證 2020年 6月 9日
Application brief Powering VCCINT_VCU Rail in Xilinx® Zynq®UltraScale+™ Family of Multiprocessors PDF | HTML 2020年 6月 8日
Application note Synchronizing DC/DC Converters in a Power Tree 2020年 1月 16日
White paper Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 2019年 10月 14日
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 2019年 6月 14日
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018年 6月 22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

TPS62810EVM-015 — 降壓轉換器評估模組

The TPS62810EVM-015 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPS6281X-Q1 automotive step-down converter family. The EVM converts a 2.7-V to 6.0-V input voltage to a regulated 1.8-V output voltage that delivers up to 4 A.

使用指南: PDF | HTML
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模擬型號

TPS62813-Q1 PSpice Unencrypted Transient Model (Rev. A)

SLVMCZ9A.ZIP (128 KB) - PSpice Model
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模擬型號

TPS62813-Q1 SIMPLIS Transient and Average Model

SLVMD86.ZIP (483 KB) - SIMPLIS Model
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參考設計

PMP41085 — 具有功能安全功能的 100W 車用資訊娛樂顯示模組參考設計

此參考設計展示具有冷車啟動、負載突降及 FuSa 功能的 100W 車用資訊娛樂顯示模組電源參考設計。

LM74900-Q1 是設計的第一階段，扮演負極輸入電壓、欠電壓、鎖定輸出與過電流保護的防護角色。LM5152-Q1 是用作預升壓控制器的第二階段，如果啟動時電池電壓低，則可升壓至特定電壓。本裝置支援低至 4.2V 的電池電壓。在第三階段，此設計會使用 LMQ644A2-Q1、TPS62813-Q1 和 TPS745-Q1 為局部調光背光、TCON 和 SerDes 等子系統提供所需的電壓。最後，此設計會使用電壓監視器和比較器來監控每個電源軌，並輔助 ISO 26262 系統設計達成目標 (...)

Test report: PDF
參考設計

PMP30785 — 適用於驅動監控系統參考設計的車用多軌電源供應

This reference design shows the performance of a non-isolated automotive power supply for a driving monitoring system for the electronic control unit (ECU). The reference design includes our power portfolio with nine power sockets.
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN-HR (RWY) 9 Ultra Librarian
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  • 認證摘要
  • 進行中持續性的可靠性監測
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