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LM2674LD-ADJ
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LM2674LD-ADJ

  • 所属类别:低压降线性稳压器
  • 产品名称:效率500mA降压稳压器
  • 厂商:NSC
  • 生产批号:08+
  • 封装:LLP
  • 库存状态:有库存
  • 库存量:1900
  • 最低订购量:1
  • 详细资料:点击查找LM2674LD-ADJ的pdf资料
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  • Product Introduction

peculiarity

  • Conversion efficiency up to 96%
  • Available in SO-8, 8-pin DIP, and LLP packages
  • LM267X Simple (Version 6.0)
  • Simple and easy to use design with:
  • Only 5 external components are required
  • Use off-the-shelf standard inductors
  • 3.3V, 5.0V, 12V and adjustable output versions
  • Adjustable version output voltage range: 1.21V to 37V
  • ± 1.5% maximum output exceeds line voltage tolerance and load conditions
  • Guaranteed 500mA output load current
  • 0.25 DMOS output switch
  • Wide input voltage range from 8V to 40V:
  • 260 kHz fixed frequency internal oscillator
  • TTL shutdown capability, low-power standby mode
  • Thermal shutdown and current limit protection

illustrate

TheLM2674 series regulators are monolithic integrated circuits with a built-in LMDMOS process. These regulators provide all buck (buck) switching regulators with excellent line and load regulation positive functions at 500 mA to regulate load current. These devices are available in 3.3V fixed output voltage, 5.0V, 12V adjustable output versions.

Requiring a minimum number of external components, these regulators are simple to use and include patented internal frequency compensation (patent numbers 5382918 and 5514947) and fixed frequency oscillators.

The LM2674 series operates at a switching frequency of 260 kHz, thus enabling a small size ratio to the filter assembly required by a lower frequency switching regulator. Due to its very high efficiency (> 90%), the copper trace of the printed circuit board is the only heat dissipation need.

LM2674 standard inductors for home use, available from several different manufacturers. This feature greatly simplifies the design of switching power supplies, which are supplied using these advanced integrated circuits. Also included in the datasheet is a selection guide for designing diodes and capacitors for switch-mode power supplies.

Other features include a guaranteed tolerance of 1.5% of the output voltage for specified input voltage and output load conditions within the ±, and a ± 10% of the oscillator frequency. External shutdown with a typical standby current of 50μA. The output switches include current limiting, thermal shutdown, and adequate protection in fault conditions.

To simplify the design process of the LM2674 buck regulator, there is computer design software, LM267X Simple (version 6.0).


apply

  • Simple, high-efficiency (> 90%) step-down (buck) regulator
  • High efficiency pre-regulator, linear regulator
  • Positive to negative voltage converters

 

ICs related to LM2674LD-ADJ include:


Model Manufacturers lot number encapsulation illustrate
LM2674LD-ADJ.0 NSC 09+ DIP8 High efficiency 500mA step-down regulator
LM2674LD-3.3 NSC 10+ SOP-8 High efficiency 500mA step-down regulator
LM2674LD-ADJ NSC 08+ LLP Efficiency 500mA step-down regulator
LM2674LDX-5.0 NSC 09+ LLP High efficiency 500mA step-down regulator

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NSC brand product recommendation


Model Manufacturers lot number encapsulation illustrate
LM2674LDX-5.0 NSC 09+ LLP High efficiency 500mA step-down regulator
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