Powerelectronics 4198 066032 Linear Technology

42VIN, 3.5A µModule Regulator for Industrial Systems

Oct. 19, 2016
Linear Technology introduces the LTM8053, a µModule step-down regulator with up to 40V input voltage.

Linear Technology introduces the LTM8053, a µModule (power module) step-down regulator with up to 40V input voltage (42V abs max), which can safely operate from unregulated or fluctuating 12V to 36V input supplies in noisy environments, such as industrial robotics, factory automation and avionics systems.

The LTM8053 houses a switching regulator controller, power switches, inductor and other supporting components in a 6.25mm x 9mm x 3.32mm BGA package. With only two capacitors and two resistors the LTM8053's solution occupies approximately 150mm², versus alternative solutions requiring up to 250mm² and twice as many components.

The LTM8053 delivers 3.5A of continuous (6A peak) output current, and its SHARE pin enables current sharing, allowing it to operate in parallel to deliver more current. The output voltage is adjustable with one resistor from 0.97V to 15V. This wide output voltage range provides versatility, so this one device generates common system bus voltages of 3.3V, 5V, 12V and 15V. The efficiency at 12VIN to 5VOUT is 90%. The LTM8053 delivers 3.5A of output current up to 85°C ambient without a heat sink or airflow (12VIN to 5VOUT).

The LTM8053 operating temperature range is -40°C to 125°C. 1,000-piece pricing starts at $9.66 each. 

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