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LM2670T-3.3
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LM2670T-3.3

  • 所属类别:低压降线性稳压器
  • 产品名称:降压高效率3A稳压器与同步
  • 厂商:NSC
  • 生产批号:09+
  • 封装:TO-220-7
  • 库存状态:有库存
  • 库存量:3000
  • 最低订购量:1
  • 详细资料:点击查找LM2670T-3.3的pdf资料
  • 点击询价
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  • Product Introduction

peculiarity

  • Efficiency up to 94%
  • Easy-to-use design (with off-the-shelf external components)
  • 150mΩ 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:
  • External synchronized clock function (280KHz to 400kHz)
  • 260 kHz fixed frequency internal oscillator
  • Operating junction temperature range from -40 to +125 °C

illustrate

The LM2670 series regulators are monolithic integrated circuits that are step-down (buck-buck) switching regulators capable of driving loads up to 3A with excellent line and load regulation characteristics. 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. Clock switching frequencies are available with an internal fixed frequency oscillator (260KHz) or externally supplied clocks in the range of 280KHz to 400kHz, allowing for smaller size components. A standard inductor used in the LM2670 series is available from several manufacturers, greatly simplifying the design process. External synchronous clocks provide direct and precise control of output ripple frequencies for consistent filtering or spectral positioning.

The LM2670 series also features built-in thermal shutdown, current limiting, and an ON/OFF control input that can adjust up and down a standby state with a low quiescent current of 50μA. The output voltage is guaranteed to be a tolerance of ± 2%.


apply

  • Simple design, high efficiency (> 90%), step-down switching regulator
  • Efficient system pre-regulator linear regulator
  • Battery charger
  • Radio equipment that communicates and synchronizes clock frequencies, voltage regulators

ICs related to LM2670T-3.3 include:


Model Manufacturers lot number encapsulation illustrate
LM2670T-ADJ/NOPB   10+11+   Hong Kong spot, imported original
LM22670TJE-5.0 NSC 11+ TO-263 3A buck regulator synchronizes or adjusts the switching frequency
LM22670TJ-5.0 NSC 10+ TO-263 3A adjustable soft-start and current-limited step-down regulator
LM2670T-5.0 NSC 09+ TO-220-7 Step-down high-efficiency 3A regulator is synchronized
LM2670T-3.3 NSC 09+ TO-220-7 Step-down high-efficiency 3A regulator is synchronized
LM22670TJE-ADJ NSC 10+ TO-263 The 3A SIMPLE SWITCHER ®, the buck regulator has adjustable soft start and current limiting
LM22670TJ-ADJ NSC 11+ TO-263 The 3A SIMPLE SWITCHER ®, the buck regulator has adjustable soft start and current limiting

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