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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LMR34206-Q1

現行

4.2V 至 42V、0.6A、超小型同步降壓轉換器

立即訂購
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
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.

LMR34206-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) 0.6 Vin (min) (V) 3.6 Vin (max) (V) 42 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 2100 Features Enable, Fixed Output, Light Load Efficiency, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 3.3 Vout (max) (V) 40 Iq (typ) (µA) 25 Duty cycle (max) (%) 99
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 3.6 Vin (max) (V) 42 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 2100 Features Enable, Fixed Output, Light Load Efficiency, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 3.3 Vout (max) (V) 40 Iq (typ) (µA) 25 Duty cycle (max) (%) 99
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

      star =TI 所選的此產品重要文件
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      類型 標題 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
      EVM User's guide LMR34206 and LMR34215 EVM User's Guide 2019年 9月 26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

      The LMR34215FSC5EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LMR34215-Q1 wide-input buck regulator. The LMR34215-Q1 is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 1.5 A of load current from an input voltage of up to 42 (...)
      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
      下載
      模擬型號

      LMR34206SC5-Q1 Unencrypted PSPICE TRANSIENT MODEL

      SNVMBT8.ZIP (186 KB) - PSpice Model
      下載
      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
      適用 TI 的評估品項標準條款與條件。

      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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