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1A, 36V DC/DC µModule regulator

Linear Technology has introduced the LTM8031, a complete 1A DC/DC regulator system-in-a-package. This is the second member of the company’s new EMC (electromagnetic-compatible) DC/DC µModule family. The device includes the inductor, switching DC/DC controller, power switches, filters and all support components housed in a 9x15x2.82mm LGA (land grid array) package. The device is compliant with the radiated emissions requirements of EN55022 class B. The switching frequency of the device can be adjusted from 200kHz to 2.4MHz with a resistor or synchronised to an external clock. The device operates from a wide input voltage range of 3.6V to 36V and regulates an output voltage from 0.8V to 10V at up to 1A. Applications for the device include converting and regulating automotive battery voltage, distributed power supply and high voltage industrial and avionics systems. For higher output current up to 2A, the LTM8032 is available with identical layout and pin functions. To improve efficiency at light loads, the device automatically activates Burst Mode operation, which keeps the output capacitor charged to the proper voltage with single cycle bursts of current followed by sleep periods, minimising input quiescent current.