Mouser Supplies ADI Regulators with Reduced EMI/EMC
Published2018.04.16 11:31Mouser Electronics supplies the LTM8065 µModule (micromodule) step-down regulator based on the Silent Switcher architecture produced by Linear Technology.
The LTM8065 is a regulator with a maximum input voltage of 40V, and it operates safely in noisy environments such as industrial robots, inspection and measurement equipment, factory automation, medical and avionics, with input voltages that are unregulated and fluctuate significantly (12–36V).
The LTM8065 µModule regulator is designed based on a Silent Switcher architecture, minimizing EMC (Electromagnetic Compatibility) and EMI (Electromagnetic Interference) emissions. Due to this reduced emission, it meets CISPR 22 Class B standards and can be used in noise-sensitive signal processing applications, such as video equipment and RF systems. Additionally, although two 0805 capacitors and two 0603 resistors have been added, the footprint is approximately 100 × 100 mm, which is only half that of a module solution with the same power level.
The LTM8065 can deliver a DC output current of 2.5 A (peak current 3.5 A) from a 12 V input to a 5 V load at ambient temperatures up to 85°C without the need for a heat sink or airflow management. With a wide output voltage range of 0.97 to 18 V, engineers can create common system bus voltages such as 3.3 V, 5 V, 12 V, and 15 V using a single solution. The switching frequency can be adjusted using one external resistor, and an engineer can synchronize it to an external clock within the range of 200kHz to 3MHz.
The RoHS-compliant LTM8065 provides four modes, including (1) pulse skipping, (2) pulse skipping including spread-spectrum modulation, (3) external synchronization, and (4) Burst Mode, and has a quiescent current of only 8µA, making it suitable for battery-operated systems.
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