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Analog Devices LTC Switching Controllers | New Product Brief

October 23, 2019 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 LTC Switching Controllers

The Analog Devices LTC7852 switching controllers are dual output, 6-phase current mode regulator controllers optimized for use with very low DCR inductors or DrMOS devices in point-of-load converter applications. 

The LTC7852 uses a proprietary architecture to enhance the signal-to-noise ratio of the current sense signal, enabling the use of inductors with submilliohm DCR for improved conversion efficiency. The controllers have a 40ns minimum on time allowing for very high switching frequencies at high step-down ratios, and they provide ±0.5% total output voltage accuracy.

The LT7852 operates with power blocks, DrMos, or external gate drivers and MOSFETs, and can be used in 1-phase to 6-phase configurations or two ICs can be used in parallel for 8-, 10-, or 12-phases and loads up to 400A.

  • Sub-Milliohm DCR sensing or DrMOS with Current Sense improves efficiency
  • tON(MIN): 40ns
  • Capable of very low duty cycles at high frequency
  • 250kHz to 1.2MHz programmable frequency range
  • ±0.5% Total Output Voltage Accuracy
  • VOUT Range: 0.5V to 2.0V
  • Operates with power blocks, DrMOS, or external gate drivers and MOSFETs
  • Flexible phase configuration: 1-phase to 6-phases
  • Two ICs in parallel support 8-, 10- or 12-phases and 400A loads

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