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2-A output buck regulator suits automotive infotainment applications

Thu, 05/15/2014 - 2:32pm

2 A buck regulatorAllegro MicroSystems, LLC (Worcester, MA) introduced a new automotive 2.0 A buck regulator that is designed to provide the low power supply requirements of next generation car audio and infotainment systems. Allegro’s A8585 device provides all the control and protection circuitry needed to produce a high current regulator with ±1.0 percent output voltage accuracy. In pulse width modulated (PWM) mode, the device employs current mode control to provide simple compensation, excellent stability, and fast transient response. In Low IQ mode, the A8585 employs pulse frequency modulation (PFM) to draw less than 33 μA from 12 VIN while supplying 5.0 V/40 μA. Once operational, the A8585 will operate down to at least 3.6 VIN (VIN falling). The transition from PWM to PFM mode can be controlled by the user or it can occur automatically. End applications include:

  • Automotive infotainment.
  • Instrumentation clusters.
  • Center stack applications.
  • Advanced driver assistance systems.

For more information, visit www.allegromicro.com

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