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LMR34206-Q1

現行

4.2V 至 42V、0.6A、超小型同步降壓轉換器

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
LMR36006-Q1 現行 4.2V 至 60V、0.6A、超小型同步降壓轉換器 Pin-to-pin with LMR34206-Q1. High frequency and tight current limit to lower inductor size.

產品詳細資料

Rating Automotive Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 42 Vin (min) (V) 3.6 Vout (max) (V) 40 Vout (min) (V) 3.3 Features Enable, Fixed Output, Fixed soft start, Light-load efficiency, Power good, Spread Spectrum, Synchronous Rectification, Synchronous rectification, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000025 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 42 Vin (min) (V) 3.6 Vout (max) (V) 40 Vout (min) (V) 3.3 Features Enable, Fixed Output, Fixed soft start, Light-load efficiency, Power good, Spread Spectrum, Synchronous Rectification, Synchronous rectification, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000025 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
VQFN-HR (RNX) 12 6 mm² 3 x 2
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Designed for automotive applications
    • Junction temperature range –40°C to +150°C
    • Protection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protection
    • 0.2-V dropout with 0.6-A load (typical)
    • ±1.5% reference voltage tolerance
    • 3.3-V, 5-V fixed-output voltage options
  • Suited for scalable power supplies
  • Integration reduces solution size and cost
    • Small, 2-mm × 3-mm VQFN package with wettable flanks
      • Few external components
    • Low power dissipation across load spectrum
      • Increased light load efficiency in PFM
      • Low operating quiescent current of 24 µA
    • Optimized for ultra low EMI requirements
      • Meets CISPR25 class 5 standard
      • Hotrod™ package minimizes switch node ringing
      • Parallel input path minimizes parasitic inductance
      • Spread spectrum reduces peak emissions
    • AEC-Q100-qualified for automotive applications:
      • Temperature grade 1: –40°C to +125°C, TA
    • Designed for automotive applications
      • Junction temperature range –40°C to +150°C
      • Protection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protection
      • 0.2-V dropout with 0.6-A load (typical)
      • ±1.5% reference voltage tolerance
      • 3.3-V, 5-V fixed-output voltage options
    • Suited for scalable power supplies
    • Integration reduces solution size and cost
      • Small, 2-mm × 3-mm VQFN package with wettable flanks
        • Few external components
      • Low power dissipation across load spectrum
        • Increased light load efficiency in PFM
        • Low operating quiescent current of 24 µA
      • Optimized for ultra low EMI requirements
        • Meets CISPR25 class 5 standard
        • Hotrod™ package minimizes switch node ringing
        • Parallel input path minimizes parasitic inductance
        • Spread spectrum reduces peak emissions

      The LMR34206-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, up to of output current is delivered over a wide input voltage range of 4.2 V to 42 V.

      The LMR34206-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor.

      The LMR34206-Q1 is in a HotRod™ package which enables low EMI, higher efficiency, and the smallest package to die ratio. The device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LMR34206-Q1 are designed to simplify implementation for a wide range of end equipment.

      The LMR34206-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, up to of output current is delivered over a wide input voltage range of 4.2 V to 42 V.

      The LMR34206-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor.

      The LMR34206-Q1 is in a HotRod™ package which enables low EMI, higher efficiency, and the smallest package to die ratio. The device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LMR34206-Q1 are designed to simplify implementation for a wide range of end equipment.

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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 LMR34206-Q1 4.2-V to 42-V, 0.6-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. A) PDF | HTML 2019年 10月 3日
      Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
      Technical article Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy lev 2020年 11月 18日
      Technical article Optimizing flip-chip IC thermal performance in automotive designs PDF | HTML 2019年 12月 11日
      Design guide Automotive ADAS camera power supply reference design (Rev. A) 2019年 8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

      LMR34215FSC5EVM — 42-V、1.5-A 同步降壓轉換器評估模組

      LMR34215FSC5EVM 評估模組 (EVM) 可協助設計人員評估 LMR34215-Q1 廣泛輸入降壓穩壓器的運作及性能。LMR34215-Q1 是一款簡單易用的同步降壓 DC/DC 轉換器,可從最高 42V 的輸入電壓驅動高達 1.5A 的負載電流。LMR34215-Q1 在非常小的解決方案尺寸中,提供了卓越的效率和準確性。LMR34215FSC5EVM 具備 LMR34215-Q1,提供固定 5V 輸出電壓與 2.1MHz 切換頻率。
      使用指南: PDF
      TI.com 無法提供
      模擬型號

      LMR34206FSC5-Q1 Unencrypted PSPICE TRANSIENT MODEL

      SNVMBT4.ZIP (162 KB) - PSpice Model
      模擬型號

      LMR34206SC5-Q1 Unencrypted PSPICE TRANSIENT MODEL

      SNVMBT8.ZIP (186 KB) - PSpice Model
      參考設計

      PMP31273 — 適用於具有監控器和監控系統之 C2000™ MCU 的車用雙降壓轉換器參考設計

      此參考設計是靈活且精巧的電源供應器,可提供 5-V 和 3.3-V 輸出軌,以為 C2000™ MCU 供電。設計包括兩個 LMR34206-Q1 超小型同步降壓轉換器裝置,以及一個具可編程窗型監視計時器的 TPS3850-Q1 精密電壓監控器。此外還增添了單一 SN74LVC2G74-Q1 D 型正反器,以提供監視系統與 C2000™ MCU 啟動行為的相容性。
      Test report: PDF
      封裝 針腳 CAD 符號、佔位空間與 3D 模型
      VQFN-HR (RNX) 12 Ultra Librarian

      訂購與品質

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      • 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
      • 進行中的可靠性監測
      內含資訊:
      • 晶圓廠位置
      • 組裝地點

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