ADI Launches Step-Down Regulator Meeting CISPR 22 Class B Requirements
Published2017.04.13 14:49Analog Devices has released the µModule® step-down regulator LTM8073, which supports an input voltage range of up to 60V (up to 65V abs).
This regulator can operate safely in noisy environments such as communication infrastructure, factory automation, industrial robotics, and aviation systems using uncontrolled or fluctuating 24V to 48V input voltages.
Analog Devices’ proprietary Silent Switcher® architecture applied to this product minimizes EMC/EMI emissions, allowing the LTM8073 to comply with CISPR 22 Class B requirements and be used in various signal processing applications, including imaging and RF systems.
The output voltage can be adjusted from 0.8V to 15V using a single resistor. Because it can provide such a wide output voltage range, a single product can generate common system bus voltages of 3.3V, 5V, 12V, and 15V. The efficiency for 24VIN to 5VOUT at 3A is 90%.
The LTM8073 can provide an output current of 3A without a heat sink or airflow up to an ambient temperature of 85°C. Since a SHARE pin is provided to share current, parallel driving for a larger current supply is possible.
The LTM8073 integrates a switching regulator controller, power switch, inductor, and other supporting components into a 6.25mm x 9mm x 3.32mm BGA package, allowing the design to be completed by adding only input and output capacitors and a few small resistors.
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