LM25011AMY by Texas Instruments | APACDC to DC Converters | Avnet ASIA
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信息

LM25011AMY

Texas Instruments

Conv DC-DC Single Step Down 6V to 42V 10-Pin MSOP-PowerPad T/R

製造商產品編號: LM25011AMY

替代料號: LM25011AMY


通過RoHS認證

描述

文檔

替代/替換

資料

The LM25011 constant on-time step-down switching regulator features all the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying up to 2 A of load current. This high-voltage regulator contains an N-Channel Buck switch, a startup regulator, current limit detection, and internal ripple control. The constant on-time regulation principle requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load. The adjustable valley current limit detection results in a smooth transition from constant voltage to constant current mode when current limit is reached, without the use of current limit foldback. The PGD output indicates the output voltage has increased to within 5% of the expected regulation value. Additional features include: Low output ripple, VIN under-voltage lock-out, adjustable soft-start timing, thermal shutdown, gate drive pre-charge, gate drive under-voltage lock-out, and maximum duty cycle limit.

The LM25011A has a shorter minimum off-time than the LM25011, which allows for higher frequency operation at low input voltages.

技術參數

  • LM25011-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • LM25011A Allows Low-Dropout Operation at
    High Switching Frequency
  • Input Operating Voltage Range: 6 V to 42 V
  • Absolute Maximum Input Rating: 45 V
  • Integrated 2-A N-Channel Buck Switch
  • Adjustable Current Limit Allows for Smaller Inductor
  • Adjustable Output Voltage from 2.51 V
  • Minimum Ripple Voltage at VOUT
  • Power Good Output
  • Switching Frequency Adjustable to 2 MHz
  • COT Topology Features:
    • Switching Frequency Remains Nearly Constant
      with Load Current and Input Voltage Variations
    • Ultra-Fast Transient Response
    • No Loop Compensation Required
    • Stable Operation with Ceramic Output Capacitors
    • Allows for Smaller Output Capacitor and Current
      Sense Resistor
  • Adjustable Soft-Start Timing
  • Thermal Shutdown
  • Precision 2% Feedback Reference
  • Package: 10-Pin, HVSSOP
  • 技術屬性

    描述
    尋找類似物料
    Mounting
    Surface Mount
    Maximum Output Current
    2 A
    Pin Count
    10
    Maximum Input Voltage
    42 V
    Minimum Input Voltage
    6 V
    MSL Level
    3
    Lead Finish
    Tin
    Max Processing Temp
    260
    Output Type
    Adjustable
    Screening Level
    Automotive
    Switching Regulator
    Yes
    Type
    Step Down
    Operating Supply Voltage
    6 to 42 V
    Product Dimensions
    3 x 3 x 0.86
    Output Voltage
    2.51 to 40 V
    Supplier Package
    MSOP-PowerPad
    Switching Frequency
    2000 kHz
    Number of Outputs
    1
    Operating Temperature
    -40 to 125 °C

    ECCN/UNSPSC

    描述
    ECCN:
    EAR99
    計劃交貨期 B:
    8542390000"
    HTSN:
    8542390001"

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