LM2595SX-3.3/NOPB by Texas Instruments | APACDC to DC Converters | Avnet ASIA
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LM2595SX-3.3/NOPB

Texas Instruments

Conv DC-DC Single Inv/Step Down 4.5V to 40V 6-Pin(5+Tab) TO-263 T/R

制造商料号#: LM2595SX-3.3/NOPB

替代型号#: LM2595SX-3.3/NOPB


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描述

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替代/替换

信息

The LM2595 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator.

The LM2595 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-lead TO-220 package with several different lead bend options, and a 5-lead TO-263 surface mount package. Typically, for output voltages less than 12V, and ambient temperatures less than 50°C, no heat sink is required.

A standard series of inductors are available from several different manufacturers optimized for use with the LM2595 series. This feature greatly simplifies the design of switch-mode power supplies.

Other features include an ensured ±4% tolerance on output voltage under specified input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 85 μA stand-by current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.

Patent Number 5,382,918.

 

技术参数

  • 3.3V, 5V, 12V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range, 1.2V to 37V ±4% Max Over Line and Load Conditions
  • Available in TO-220 and TO-263 (Surface Mount) Packages
  • Ensured 1A Output Load Current
  • Input Voltage Range Up to 40V
  • Requires Only 4 External Components
  • Excellent Line and Load Regulation Specifications
  • 150 kHz Fixed Frequency Internal Oscillator
  • TTL Shutdown Capability
  • Low Power Standby Mode, IQ Typically 85 μA
  • High Efficiency
  • Uses Readily Available Standard Inductors
  • Thermal Shutdown and Current Limit Protection
  • 技术特性

    描述
    寻找类似物料
    MSL Level
    3
    Lead Finish
    Tin
    Output Type
    Fixed
    Switching Regulator
    Yes
    Supplier Package
    TO-263
    Type
    Inverting|Step Down
    Maximum Input Voltage
    40 V
    Operating Supply Voltage
    4.5 to 40 V
    Switching Frequency
    173 kHz
    Pin Count
    6
    Product Dimensions
    10.16 x 8.64 x 4.57 mm
    Maximum Output Current
    1 A
    Number of Outputs
    1
    Minimum Input Voltage
    4.5 V
    Max Processing Temp
    245
    Mounting
    Surface Mount
    Operating Temperature
    -40 to 125 °C
    Efficiency
    78 %
    Output Voltage
    3.3 V

    ECCN / UNSPSC

    描述
    ECCN:
    EAR99
    计划交货期 B:
    8542390000"

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