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LM2677T-12
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LM2677T-12

  • Category:Low dropout linear regulator
  • Product Name:High efficiency 5A buck regulator
  • Manufacturers:NSC
  • Production Batch Number:10+
  • Encapsulation:LLP
  • Stock Status:There is stock
  • Stock Quantity:7680
  • Minimum order quantity: 1
  • Details:Click here to find pdf information on LM2677T-12
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  • Product introduction

peculiarity

  • Up to 92% conversion efficiency
  • Easy-to-use design (using off-the-shelf external components)
  • 100MΩDMOS output switch
  • Fixed output and adjustable (1.2V to 37V) versions of 3.3V, 5V and 12V
  • When the standby current of 50μA is off,
  • Up to ± 2% output tolerance and load conditions across the line
  • Wide 8V to 40V Input Voltage Range:
  • External Synchronous Clock Function (280KHz to 400kHz)
  • Internal oscillator at fixed frequency at 260 kHz
  • Operating junction temperature range from -40 to +125 °C

illustrate

The LM2677 series of regulators are monolithic integrated circuits that provide buck switching regulators capable of driving all the positive features of a 5A load (buck) with excellent line and load regulation. High efficiency (> 90%) is obtained by using a low on-resistance DMOS power switch. The series includes fixed output voltage and adjustable output versions of 3.3V, 5V and 12V.

THE SIMPLE SWITCHER CONCEPT PROVIDES A COMPLETE DESIGN USING A MINIMUM NUMBER OF EXTERNAL COMPONENTS. The clock switching frequency can be provided by an internal fixed frequency oscillator (260KHz) or an externally supplied clock in the range of 280KHz to 400kHz, allowing the use of smaller components. A standard inductor used in the LM2677 series is available from several manufacturers, greatly simplifying the design process. An external synchronous clock provides direct and precise control of output ripple frequencies for consistent filtering or spectral positioning.

The LM2677 series also features built-in thermal shutdown, current limiting, and an ON/OFF control input that can adjust standby with a low quiescent current of 50μA up and down. The output voltage is guaranteed to a tolerance of ± 2%.


apply

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

andLM2677T-12Related ICs are:


Model Manufacturers lot number encapsulation illustrate
LM2677T-ADJ/NOPB   10+11+   Hong Kong spot, imported original
LM22677TJE-ADJ/NOPB   10+11+   Hong Kong spot, imported original
LM2677T-ADJ NSC 10+ TO-220 High efficiency 5A buck regulator
LM2677T-12 NSC 10+ LLP High efficiency 5A buck regulator
LM22677TJ-5.0 NSC 10+ TO-263 Buck regulator with adjustable soft-start and current limit
LM22677TJE-5.0 NSC 10+ TO-263-7 Buck regulator with adjustable soft-start and current limit
LM2677T-3.3.3 NSC 08+ TO263-7 High efficiency 5A buck regulator
LM2677T-5.0 National 04+ TO-220 Brand new original
LM22677TJE-ADJ NSC 10+ T0-263 SIMPLE SWITCHER ® 3A, A BUCK REGULATOR
LM22677TJ-ADJ NSC 10+ TO-263 SIMPLE SWITCHER ® 3A, A BUCK REGULATOR

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