LM25019MR/NOPB by Texas Instruments | APACDC to DC Converter | Avnet ASIA
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信息

LM25019MR/NOPB

Texas Instruments

Conv DC-DC Single-OUT Step Down 9V 48V 8-Pin PowerSO Tube

製造商產品編號: LM25019MR/NOPB

替代料號: LM25019MR/NOPB


legend 通過RoHS認證

描述

文檔

替代/替換

資料

The LM25019 is a 48-V, 100-mA synchronous step-down regulator with integrated high-side and low-side MOSFETs. The constant on-time (COT) control scheme employed in the LM25019 requires no loop compensation, provides excellent transient response, and enables very high step-down ratios. The on-time varies inversely with the input voltage resulting in nearly constant frequency over the input voltage range. A high-voltage start-up regulator provides bias power for internal operation of the IC and for integrated gate drivers.

A peak current limit circuit protects against overload conditions. The undervoltage lockout (UVLO) circuit allows the input undervoltage threshold and hysteresis to be independently programmed. Other protection features include thermal shutdown and bias supply undervoltage lockout.

The LM25019 is available in 8-pin WSON and 8-pin SO PowerPAD plastic packages.

技術參數

  • Wide 7.5-V to 48-V Input Range
  • Integrated 100-mA High-Side and
    Low-Side Switches
  • No Schottky Required
  • Constant On-Time Control
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Nearly Constant Operating Frequency
  • Intelligent Peak Current Limit
  • Adjustable Output Voltage From 1.225 V
  • Precision 2% Feedback Reference
  • Frequency Adjustable to 1 MHz
  • Adjustable Undervoltage Lockout
  • Remote Shutdown
  • Thermal Shutdown
  • Packages:
    • 8-Pin WSON
    • 8-Pin SO PowerPAD™
  • 技術屬性

    描述
    尋找類似物料
    Operating Temperature
    -40 to 125 °C
    Lead Finish
    Tin|Copper
    Maximum Input Voltage
    48 V
    Output Voltage
    1.225 to 40 V
    Output Type
    Adjustable
    MSL Level
    3
    Supplier Package
    PowerSO
    Maximum Output Current
    0.1 A
    Minimum Input Voltage
    9 V
    Pin Count
    8
    Screening Level
    Extended Industrial
    Max Processing Temp
    260
    Type
    Step Down
    Product Dimensions
    4.9 x 3.9 x 1.47
    Switching Frequency
    1000 kHz
    Number of Outputs
    1
    Switching Regulator
    Yes
    Operating Supply Voltage
    6.25 to 8.55 V
    Mounting
    Surface Mount

    ECCN/UNSPSC

    描述
    ECCN:
    EAR99
    計劃交貨期 B:
    8542390000"
    HTSN:
    8542390001"
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101

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