LMR34215-Q1 超小型、4.2V ~ 42V、1.5A 同期整流降圧コンバータ | TIJ.co.jp

LMR34215-Q1 (供給中) 超小型、4.2V ~ 42V、1.5A 同期整流降圧コンバータ

 

概要

The LMR34215-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 LMR34215-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 LMR34215-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 LMR34215-Q1 are designed to simplify implementation for a wide range of end equipment.

特長

  • 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
    • Spread-spectrum frequency modulation
    • HotRod™ package enables low EMI and minimized switch node ringing
    • 0.4-V dropout with 1.5-A load (typical)
    • ±1.5% reference voltage tolerance
    • 5-V fixed-output, adjustable output voltage options
  • Suited for scalable power supplies
    • Pin compatible With:
    • 400-kHz, 2.1-MHz frequency options
      • 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
          • 93% efficiency at 400 kHz (12VIN, 5VOUT, 1A)
          • Increased light load efficiency in PFM
          • Low operating quiescent current of 24 µA

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    Part Number
      Min   Max Range
    Vin  V
    Vout  V
    Iout  A
    Ambient Temp  °C -40 to 150°C

    機能一覧

    他の製品と比較 降圧コンバータ(スイッチ内蔵) メール Excelへダウンロード
    Part number オーダー・オプション Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
    LMR34215-Q1 ご注文 3.6     42     3.3     40     1.5     1     400     2100     0.025     Fixed Output
    Forced PWM
    Light Load Efficiency
    Over Current Protection
    Power Good
    Soft Start Fixed
    Spread Spectrum
    Synchronous Rectification
    Wettable Flanks Package    
    Current Mode     99     -40 to 125     Automotive     VQFN-HR | 12     Converter     12VQFN-HR: 6 mm2: 3 x 2 (VQFN-HR | 12)    
    LMR34206-Q1 ご注文 3.6     42     3.3     40     0.6     1     400     2100     0.025     Enable
    Fixed Output
    Light Load Efficiency
    Power Good
    Soft Start Fixed
    Spread Spectrum
    Synchronous Rectification
    Wettable Flanks Package    
    Current Mode     99     -40 to 125     Automotive     VQFN-HR | 12     Converter     12VQFN-HR: 6 mm2: 3 x 2 (VQFN-HR | 12)