Ericsson Power Modules Introduces POLA Devices For High Current, Low Voltage Power Supplies
Ericsson Power Modules introduced the PMR5000 (50A) and PMR8000 (40A) – two additional products to its interoperable POLA product offering. Based on advanced technologies such as TurboTrans, the company says the devices provide the highest level of performance when the load changes quickly from an inactive low-current state to a fully processing high-current state whilst requiring a solid, precise supply voltage to be maintained.
"For the Point-of-Load Alliance (POLA), the addition of these two products responds to the high market interest for this business model of a group of power supplies companies sharing knowledge to support end-users with the most advanced products while securing second sources" said Patrick Le Fèvre – Marketing and Communication Director at Power Modules. "Since its formation in 2003, the POLA has experienced an amazing level of adoption and I’m sure PMR is the best solution to power new generations of servers and Flash based storage equipments."
The PMR series’ high output current of up to 50A with easy paralleling and current sharing make it very simple to interconnect two modules to power up to 100A applications while maintaining high efficiency and a fast transient response time. Designed to meet ultra-fast transient response time requirements of up to 300A/µA, the PMR series is well suited for solid-state drives and high-capacity memory boards requiring high speed read/write capabilities.
Based on a highly optimized power-train and low power loss layout, the PMR series devices offer efficiency levels of up to 96%. With an output voltage range of 0.7 to 3.6V for the PMR5000, and 3.0 to 5.25V for the PMR8000, this high flexibility reduces the number of products in inventory while reducing time to market for designers requiring a large variety of voltages per board. Additionally, with an input voltage range of 4.5 to 14V for the PMR5000, and 8 to 14V for the PMR8000, this versatile voltage range increases design flexibility by supporting operations with tightly regulated intermediate bus or loosely regulated 9.6 to 12V supplies.
The PMR5000 and PMR8000 include TurboTrans and SmartSync technologies. TurboTrans optimizes the transient response of the regulator while simultaneously 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 significantly improve the regulators’ transient response by reducing the peak voltage deviation. SmartSync allows for switching frequency synchronization of multiple modules, thus 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 both 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. Those technologies, that are already implemented in other POLA interoperable products (PMN and PMP), are said to have proven benefits in applications. As part of the very successful POLA program, these products are fully interoperable with other members’ equivalent products, guaranteeing customers access to second source products without having to fully re-qualify the product.
The price for both products in OEM quantities is $30.
