60V, 3A micro-module regulator in 6.25 x 9mm BGA, CISPR 22 Class B-compliant
From the Linear Technology acquisition of Analog Devices, the Silent Switcher architecture minimizes EMC/EMI emissions, enabling the LTM8073 to pass CISPR 22 Class B for use in signal processing applications, including imaging and RF systems.
The output voltage is adjustable with one resistor from 0.8V to 15V, providing versatility of using one product to generate common system bus voltages of 3.3V, 5V, 12V and 15V. Efficiency at 24 VIN to 5 VOUT at 3A is 90%. The LTM8073 delivers 3A of output current up to 85°C ambient without a heat sink or airflow. The device features a SHARE pin for current sharing, so it can operate in parallel to deliver more current.
The LTM8073 houses a switching regulator controller, power switches, inductor and other supporting components in a 6.25 x 9 x 3.32 mm BGA package. Only the bulk input and output capacitors and a few small resistors are required to complete the design. The switching frequency is adjustable by an external single resistor or can be synchronized to an external clock from 200 kHz to 3 MHz. The LTM8073 has four operating modes: Burst Mode operation, pulse-skipping mode, pulse-skipping mode with spread spectrum and external sync mode.
Analog Devices/Linear Technology; www.linear.com/product/LTM8073
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