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Ericsson Power Modules has added the PMR5000 (50A) and PMR8000 (40A) to its interoperable Pola product offering.

Based on technologies such as Turbotrans, the devices provide high efficiency, fast transient and response times, and easy paralleling to reduce part numbers kept in inventory.

Applications requiring these features include servers, data storage, high-capacity memory cards, solid-state drives, ATCA and a range of applications requiring high dynamic response point-of-load powering low-voltage, high-current situations.

The devices are suitable for servers and high-density memory cards aimed at replacing conventional hard disks.

The PMR series’ output current of up to 50A with easy paralleling and current sharing make it simple to interconnect two modules to power up to 100A applications.

Designed to meet ultra-fast transient response time requirements of up to 300A, the PMR series is suitable for solid-state drives and high-capacity memory boards requiring high speed read/write capabilities.

The PMR series devices offer efficiency levels of up to 96 per cent with an output voltage range of 0.7 to 3.6V for the PMR5000, and 3.0 to 5.25V for the PMR8000.

With an input voltage range of 4.5 to 14V for the PMR5000, and 8 to 14V for the PMR8000, the applications support operations with tightly regulated intermediate bus or loosely regulated 9.6 to 12V supplies.

Turbotrans technology optimises the transient response of the regulator while reducing the quantity of external output capacitors required to meet a target voltage deviation specification.

Additionally, for a target output capacitor bank, Turbotrans can be used to improve the regulators’ transient response by reducing the peak voltage deviation.

Smartsync allows for switching frequency synchronisation of multiple modules, simplifying EMI noise suppression tasks and reducing input capacitor RMS current requirements.

Protection includes output over-current protection (non-latching, auto reset), and adjustable under-voltage lockout.

Other features include pre-bias start-up, autotrack sequencing, multi-phase switch mode topology, and differential output voltage remote sense.

The PMR5000 and PMR8000 use double-sided, surface-mount construction to provide a low-profile and compact footprint.

Package options include through-hole and surface-mount configurations that are lead (Pb) free and RoHS compatible.

Part of Ericsson’s third generation of Pola products, the PMR5000 and PMR8000 are based on technologies reducing the amount of external capacitors while reducing output ripple and noise.

Ericsson Power Modules

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