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Power Electronics Europe News
Non-isolated PoL switching regulators replace linear regulators
The SVR surface mount and VR through hole devices have efficiencies of up to 96% and operating temperatures of -40 to 85°C. The point of load (PoL) devices are replacements for low efficiency linear regulators. They operate from a wide input range of up to 36V and feature a low quiescent current, making them suitable for a variety of applications and battery-powered electronic equipment. 

There are two variants in the SVR range, each offering different maximum output currents. The SVR05 0.5A devices offer output voltage models between 1.5V and 15V, and a low standby current of less than 100µA with remote on/off. The SVR10 series of 1.0A switching regulators has output voltage models from 1.5V to 12V and standby current of less than 1mA with remote on/off. Both versions are housed in a compact SMD package measuring 15.24 x 8.5 x 8.25mm and offer efficiency levels of up to 95%.

There are three versions of VR range of SIP3 packaged switching regulators. The VR05 (0.5A) consumes down to 0.2mA when idle and the VR10 (1.0A) consumes 0.3mA. Both offer regulated single outputs from 3.3V to 15V. The VR20 (2.0A) covers outputs from 2.5V to 15V and consumes down to 0.1mA when idle.

Both the SVR and VR families comply with EN55032 Class B conducted and radiated emissions with external components and meet EN61000-4-2, -3, -4, -5, -6 immunity standards.

Common features include continuous short circuit protection with auto-recovery and overload protection. Typical applications include portable and battery-operated equipment, sensors, robotics, instrumentation, telecommunications, embedded computing, medical devices and distributed DC supply systems requiring regulation but not needing isolation. All models have mean time between failure (MTBF) figures over 2Mhrs and are covered with a three-year warranty.

The SVR and VR switching regulators are available now from Digi-Key, Farnell, Mouser, RS Components, approved regional distributors, or directly from XP Power.


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