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Analog Devices Inc. Dual Step-Down Regulator | New Product Brief

May 25, 2020 by Mouser Electronics

This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.

Analog Devices Inc. Dual Step-Down Regulator

Analog Devices’ LT8653S is a compact and high efficiency dual step-down switching regulator that leverages the second-generation Silent Switcher architecture for low EMI. The LT8653S provides two outputs and can drive up to 2A on each channel simultaneously or up to 3A on either channel.

 The regulator operates from a 3.0V to 42V input and output voltages can be set via resistor dividers or by pin selection of fixed values for a reduced BOM. The Silent Switcher 2 architecture includes integrated bypass capacitors to minimize layout sensitivity and deliver ultralow EMI with high efficiency and high switching frequencies on any PCB. 

Switching frequency is adjustable and synchronizable from 300kHz to 3MHz, or the regulator can be set to an internal 2MHz switching frequency with fast compensation. 

  • 2A DC from Each Channel Simultaneously 
    • Up to 3A on Either Channel 
  • Wide Input Voltage Range: 3.0V to 42V 
  • Output voltage set via resistor dividers or pin selection (1.8V/3.3V/5.0V) 
  • Silent Switcher®2 Architecture for ultralow EMI without PCB layout sensitivity 
  • High efficiency: 94.1% at 1A, 5VOUT from 12VIN at 2MHz 
  • Switching frequency: 300kHz to 3MHz 
    • Internal 2MHz fSW with Fast Internal Compensation

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