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LM2670SX-12
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LM2670SX-12

  • Category:Low dropout linear regulator
  • Product Name:Buck high efficiency 3A regulator is synchronized
  • Manufacturers:NSC
  • Production Batch Number:07+
  • Encapsulation:TO-263-7
  • Stock Status:There is stock
  • Stock Quantity:5000
  • Minimum order quantity: 1
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  • Product introduction
peculiarity
  • Up to 94% efficiency
  • Easy-to-use design (using 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 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 LM2670 series of regulators are monolithic integrated circuits that are 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 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 LM2670 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 LM2670 series also features built-in thermal shutdown, current limiting, an ON/OFF control input, and can adjust the standby state with a low quiescent current power 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 frequency, voltage regulators

andLM2670SX-12Related ICs are:


Model Manufacturers lot number encapsulation illustrate
LM2670SX-ADJ/NOPB   10+11+   Hong Kong spot, imported original
LM2670SX-3.3/NOPB   10+11+   Hong Kong spot, imported original
LM2670SX-12 NSC 07+ TO-263-7 Buck high efficiency 3A regulator is synchronized
LM2670SX-5.0 NSC 08+ TO263 Buck high efficiency 3A regulator is synchronized
LM2670SX-ADJ NSC 10+ LLP High efficiency 500mA buck regulator for power converters

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