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LM2678SX-12
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LM2678SX-12

  • 所属类别:低压降线性稳压器
  • 产品名称:高效率5A降压稳压器
  • 厂商:NSC
  • 生产批号:10+
  • 封装:LLP
  • 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LM2678SX-12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)
  • 120mΩ DMOS output switch
  • Fixed output and adjustable (1.2V to 37V) versions of 3.3V, 5V and 12V
  • When the standby current of 50μA is disconnected,
  • 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
  • Operating junction temperature range from -40 to +125 °C

illustrate

TheLM2678 series regulators are monolithic integrated circuits that provide step-down switching regulators capable of driving excellent line and load regulation characteristics for 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 LM2678 series is supplied from several manufacturers, greatly simplifying the design process.

The LM2678 series also features built-in thermal shutdown, current limiting, and an ON/OFF control input that can adjust up and down the standby state of low quiescent current with a power of 50μA. 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

The ICs associated with LM2678SX-12 include:


Model Manufacturers lot number encapsulation illustrate
LM2678SX-5.0/NOPB NSC 10+11+   Hong Kong spot, imported original
LM2678SX-3.3/NOPB   10+11+   Hong Kong spot, imported original
LM2678SX-ADJ/NOPB   10+11+   Hong Kong spot, imported original
LM2678SX-3.3 NSC 10+ 14-LLP High-efficiency 5A buck regulator
LM2678SX-ADJ NSC 10+ TO263 High-efficiency 5A buck regulator
LM2678SX-5.0 NSC 09+ TO263 High-efficiency 5A buck regulator
LM2678SX-12 NSC 10+ LLP High-efficiency 5A buck regulator

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