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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS62811M

現行

採用 2-mm x 3-mm QFN 封裝，具有 -55C 擴展溫度的 2.75-V 至 6-V、1-A 降壓轉換器

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產品規格表

TPS62811M

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -55 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 2.75 Vin (max) (V) 6 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, Spread Spectrum, Synchronous Rectification, Tracking, UVLO adjustable, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -55 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 2.75 Vin (max) (V) 6 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, Spread Spectrum, Synchronous Rectification, Tracking, UVLO adjustable, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
VQFN-HR (RWY) 9 6 mm² 3 x 2
  • Functional Safety-Capable
  • Extended junction temperature from –55°C to +150°C
  • Input voltage range: 2.75 V to 6 V
  • Family of 1-A, 2-A, 3-A, and 4-A converters
  • Quiescent current: 15 µA typical
  • Output voltage from 0.6 V to 5.5 V
  • Output voltage accuracy ±1% (FPWM operation)
  • Adjustable soft start
  • Start-up at –55°C
  • 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
  • Functional Safety-Capable
  • Extended junction temperature from –55°C to +150°C
  • Input voltage range: 2.75 V to 6 V
  • Family of 1-A, 2-A, 3-A, and 4-A converters
  • Quiescent current: 15 µA typical
  • Output voltage from 0.6 V to 5.5 V
  • Output voltage accuracy ±1% (FPWM operation)
  • Adjustable soft start
  • Start-up at –55°C
  • 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 TPS6281xM 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 family of devices is based on a peak current mode control topology. 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. The device can automatically enter power save mode (PSM) at light loads to maintain high efficiency across the whole load range. The device provides 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows the user to set the start-up time or form tracking of the output voltage to an external source, allowing external sequencing of different supply rails and limiting the inrush current during start-up.

The TPS6281xM device is available in a 2-mm × 3-mm VQFN package with wettable flanks.

The TPS6281xM 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 family of devices is based on a peak current mode control topology. 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. The device can automatically enter power save mode (PSM) at light loads to maintain high efficiency across the whole load range. The device provides 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows the user to set the start-up time or form tracking of the output voltage to an external source, allowing external sequencing of different supply rails and limiting the inrush current during start-up.

The TPS6281xM device is available in a 2-mm × 3-mm VQFN package with wettable flanks.
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TPS62811-Q1 現行 採用 2 mm x 3 mm 可潤濕側翼 QFN 封裝的車用 2.75V 至 6V、1A 降壓轉換器 Automotive qualified device with temperature range -40°C to 125°C

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類型 標題 日期
* Data sheet TPS6281xM, Extended Temperature, 2.75-V to 6-V Adjustable-Frequency Step-Down DC/DC Converter datasheet PDF | HTML 2021年 3月 9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 TPS6281xM Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2021年 1月 18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
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
TI.com 無法提供
模擬型號

TPS62811-Q1 PSpice Transient Model (Rev. B)

SLVMD50B.ZIP (612 KB) - PSpice Model
下載
模擬型號

TPS62811-Q1 SIMPLIS Transient and Average Model (Rev. A)

SLVMD85A.ZIP (537 KB) - SIMPLIS Model
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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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  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

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