LM25005MHX/NOPB by Texas Instruments | APACDC to DC Converters | Avnet ASIA
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信息

LM25005MHX/NOPB

Texas Instruments

Conv DC-DC Single Step Down 7V to 42V 20-Pin TSSOP EP T/R

製造商產品編號: LM25005MHX/NOPB

替代料號: LM25005MHX/NOPB


通過RoHS認證

描述

文檔

替代/替換

資料

The LM25005 switching regulator features all of the functions necessary to implement an efficient, high voltage buck regulator using a minimum of external components. This easy to use regulator includes a 42V, 160mΩ, N-channel MOSFET, with an output current capability of 2.5 Amps. The regulator control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line voltage feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The operating frequency is programmable from 50kHz to 500kHz. An oscillator synchronization pin allows multiple LM25005 regulators to self-synchronize or to be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown and remote shutdown capability. The device is available in a power enhanced HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.

 

技術參數

  • Integrated 42V, 160mΩ N-Channel MOSFET
  • Ultra-Wide Input Voltage Range from 7V to 42V
  • Internal Bias Regulator
  • Adjustable Output Voltage from 1.225V
  • 1.5% Feedback Reference Accuracy
  • Current Mode Control with Emulated Inductor Current Ramp
  • Single Resistor Oscillator Frequency Setting
  • Oscillator Synchronization Input
  • Programmable Soft-Start
  • Shutdown / Standby Input
  • Wide Bandwidth Error Amplifier
  • Thermal Shutdown
  • 技術屬性

    描述
    尋找類似物料
    Supplier Package
    TSSOP EP
    Operating Supply Voltage
    7 to 42 V
    Output Type
    Adjustable
    Switching Regulator
    Yes
    Lead Finish
    Tin
    MSL Level
    1
    Pin Count
    20
    Minimum Input Voltage
    7 V
    Switching Frequency
    50 to 500 kHz
    Type
    Step Down
    Output Voltage
    1.225 to 40 V
    Maximum Output Current
    2.5 A
    Maximum Input Voltage
    42 V
    Number of Outputs
    1
    Efficiency
    90 %
    Operating Temperature
    -40 to 125 °C
    Mounting
    Surface Mount
    Max Processing Temp
    260
    Product Dimensions
    6.5 x 4.4 x 0.9 mm

    ECCN/UNSPSC

    描述
    ECCN:
    EAR99
    計劃交貨期 B:
    8542.2119-00
    HTSN:
    8542.2119-00

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