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LM2597HVM-5.0
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LM2597HVM-5.0

  • 所属类别:低压降线性稳压器
  • 产品名称:电源转换器150 kHz的0.5A降压稳压器
  • 厂商:NSC
  • 生产批号:10+
  • 封装:SOP
  • 库存状态:有库存
  • 库存量:9850
  • 最低订购量:1
  • 详细资料:点击查找LM2597HVM-5.0的pdf资料
  • 点击询价
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  • Product Introduction

peculiarity

  • 3.3V, 5V, 12V and adjustable output versions
  • Adjustable version output voltage range of 1.2V to 37V (57V for HV version) ± 4% on-line maximum load condition
  • Guaranteed output current of 0.5A
  • It is available in an 8-pin surface mount in a DIP-8 package
  • Input voltage range up to 60V
  • 150 kHz fixed frequency internal oscillator
  • Shutdown/soft start
  • Error signs of regulation
  • Error output delay
  • The efficiency of the bias power pin (V BS) of the internal circuit is increased at high input voltages
  • Low power standby mode, 85μA typical for Iq
  • High efficiency
  • Use off-the-shelf standard inductors
  • Thermal shutdown and current limit protection

illustrate

The regulatory LM2597/LM2597HV series is a monolithic integrated circuit that provides an active buck (buck) switching regulator capable of driving an excellent line and load regulation of all the functions of a 0.5A load. The devices are available in 3.3V, 5V, 12V, and adjustable output versions with fixed output voltages and are packaged in an 8-pin DIP and 8-pin surface-mount package.

This series of switching regulators is similar to the LM2594 series, with additional regulatory and performance features.

Requiring a minimal number of external components, these regulators are simple to use and include internal frequency compensation †, improved line and load specifications, fixed frequency oscillators, shutdown/soft start, error flag delay, and error flag output.

The LM2597/LM2597HV series switches at 150 kHz, thus enabling smaller sizes with lower frequency switching regulators required filter assemblies. Due to their high efficiency, copper traces on printed circuit boards are often the only heat dissipation needs.

The standard inductor series (through-hole and surface mount types) are available from the LM2597/LM2597HV series optimized for use by several different manufacturers. This feature greatly simplifies the design of switching power supplies.

Other features include a guaranteed 4% tolerance under all conditions under the input voltage and output load conditions of the ± output voltage, and a frequency of ± 15% for the oscillator. Includes external shutdown with a typical 85μA standby current. Self-protection features include a two-stage current limit, output switch, and complete protection in the event of an over-temperature shutdown fault.

LM2597HV is required in the application and input voltage up to 60V.


apply

  • Simple, high-efficiency step-down (buck-down) regulator
  • Efficient pre-conditioning of linear regulators
  • Switching regulator on the card
  • Positive negative voltage converter

ICs related to LM2597HVM-5.0 include:


Model Manufacturers lot number encapsulation illustrate
LM2597HVM-ADJ/NOPB   10+11+   Hong Kong spot, imported original
LM2597HVM-5.0/NOPB   10+11+   Hong Kong spot, imported original
LM2597HVMX-3.3 NSC 10+ SOP Power converter 150 kHz 0.5A buck regulator
LM2597HVM-12 NSC 09+ SOP8 Power converter 150 kHz 0.5A buck regulator
LM2597HVMX-ADJ NSC 08+ SOP Power converter 150 kHz 0.5A buck regulator
LM2597HVM-5.0 NSC 10+ SOP Power converter 150 kHz 0.5A buck regulator
LM2597HVM-3.3 NSC 09+ SOP-8 Power converter 150 kHz 0.5A buck regulator
LM2597HVMX-5.0 NSC 07+ SOIC-8 Power converter 150 kHz 0.5A buck regulator
LM2597HVMX-12 NSC 09+ SOP8 Power converter 150 kHz 0.5A buck regulator
LM2597HVM-ADJ NSC 10+ SOP-8 Simple switching power converter 150 kHz 0.5A step-down regulator

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