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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS62812M

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、2-A 降壓轉換器

立即訂購
產品規格表

TPS62812M

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) 6 Vin (min) (V) 2.75 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable soft start, Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, 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 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -55 to 150 Iq (typ) (µA) 15 Duty cycle (max) (%) 100 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 6 Vin (min) (V) 2.75 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable soft start, Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, 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 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -55 to 150 Iq (typ) (µA) 15 Duty cycle (max) (%) 100 Type Converter
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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TPS62812-Q1 現行 採用 2mm x 3mm 可潤濕側翼 QFN 封裝的車用 2.75V 至 6V、2A 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
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

TPS62810EVM-015 評估模組 (EVM) 的設計目的在協助使用者輕鬆評估和測試 TPS6281X-Q1 汽車降壓轉換器系列的操作和功能。EVM 將 2.7-V 到 6.0-V 輸入電壓轉換為可提供高達 4 A 電流的穩壓 1.8-V 輸出電壓。

使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS62812-Q1 PSpice Unencrypted Transient Model (Rev. B)

SLVMCV5B.ZIP (163 KB) - PSpice Model
下載
模擬型號

TPS62812-Q1 SIMPLIS Transient and Average Model (Rev. A)

SLVMD84A.ZIP (666 KB) - SIMPLIS Model
下載
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

此參考設計展示電子控制單元 (ECU) 驅動監控系統的非隔離式車用電源供應性能。參考設計包含我們的電源產品組合，具有九個電源插座。
Test report: PDF
電路圖: PDF
參考設計

PMP22063 — 具備熱/冷車啟動功能的車用儀錶板與顯示器電源參考設計

此參考設計提供汽車 HUD、中央資訊顯示器、儀表板顯示器或其它汽車顯示器的系統軌。3.3-V 匯流排是由無電池降壓轉換器產生。升壓轉換器可提供 3.3-V 至 5-V 之轉換，降壓可從 3.3-V 軌提供 1.8 V。顯示面板、CAN 匯流排、微控制器 (MCU)、FPD-Link、觸控控制器和開關組，在此設計中都是可由電源軌驅動的範例。包括 EMI 濾波和反向電池保護。
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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訂購與品質

內含資訊：
  • 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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