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LM2679SD-ADJ
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LM2679SD-ADJ

  • 所属类别:低压降线性稳压器
  • 产品名称:5A降压型电压稳压器
  • 厂商:NSC
  • 生产批号:10+
  • 封装:14-LLP
  • 库存状态:有库存
  • 库存量:18000
  • 最低订购量:1
  • 详细资料:点击查找LM2679SD-ADJ的pdf资料
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  • Product Introduction

peculiarity

  • Conversion efficiency up to 92%
  • Easy-to-use design (with off-the-shelf external components)
  • The resistor has a programmable peak current limit of 7A over 3A.
  • 120mΩ DMOS output switch
  • Fixed output and adjustable (1.2V to 37V) versions of 3.3V, 5V and 12V
  • The entire line exceeds up to ± 2% output tolerance and load conditions
  • Wide input voltage range from 8V to 40V:
  • 260 kHz fixed frequency internal oscillator
  • Soft start capability
  • Operating junction temperature range from -40 to +125 °C

illustrate

TheLM2679 Series Regulators are monolithic integrated circuits that provide step-down switching regulators capable of driving excellent line and load regulation characteristics with 5A load (buck) all the positive functions. High efficiency (> 90%) is obtained by using a low-on-resistance DMOS power switch. The series includes fixed output voltages of 3.3V, 5V and 12V and adjustable output versions.

The concept of the SIMPLE SWITCHER provides a complete design with the use of a minimum number of external components. A higher fixed frequency oscillator (260KHz) allows the use of smaller size components. A standard inductor used in the LM2679 series is available from several manufacturers, greatly simplifying the design process.

Other features include the inclusion of a soft-start timing capacitor to gradually turn on the regulator's ability to input inrush current at power-up. The LM2679 series also features built-in thermal shutdown and resistive programmable current limit power MOSFET switches for protection devices and load circuit failures. The output voltage is guaranteed to be a tolerance of ± 2%. The clock frequency is controlled at tolerance ± 11%.


apply

  • Simple design, high efficiency (> 90%), step-down switching regulator
  • Efficient system pre-regulator linear regulator
  • Battery charger

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