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

Texas Instruments

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

Manufacturer Part #: LM25005MHX/NOPB

Alternate Part #: LM25005MHX/NOPB


RoHS Compliant

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Information

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.

 

Key Features

  • 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
  • Technical Attributes

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

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542.2119-00
    HTSN:
    8542.2119-00

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