Flex Power upgrades power stage module

This onboard capacitance reduces the need for customers to add external components, which frees up valuable board space and simplifies power design.

The module provides a continuous output current of 80A with an adjustable output voltage ranging from 0.5V to 1.8V, addressing the growing power demands of advanced CPUs, GPUs, IPUs, FPGAs, and ASICs in high-performance applications such as AI, which is particularly power intensive.

Compact yet powerful, Flex Power Modules' BMR5101041/002 utilises advanced magnetic core materials to achieve high inductance while operating at lower switching frequencies, minimising switching losses. These optimisations result in impressive total efficiency, reaching up to 93% at light loads and 87.5% at full load.

Reliability is also a key feature of the upgraded BMR510. With top-side cooling and power stages mounted on the upper side, it achieves excellent thermal performance and ensures consistent operation even in challenging conditions. The use of smart power stages with a 5VVCC, which is favoured by many power designers for its widespread availability, further enhances the module’s versatility.

The module operates within an input voltage range of 4.5 to 15V and features a compact overall footprint of just 0.9cm² (0.14in²). Whilst the addition of onboard capacitance has slightly increased the module’s profile to 9.5mm, this improvement reduces the need for external components, in turn optimising board space and ensuring the module remains well-suited for space-constrained layouts.

Termination options include Land Grid Array (LGA) or solder bumps, allowing flexible integration into diverse designs. In addition, the halogen-free module incorporates essential safeguards, such as over-current and over-temperature protection, along with tri-state Pulse Width Modulation (PWM) inputs. Designers benefit from integrated temperature and current monitoring for each phase and the capability to parallel multiple units for increased power delivery, enabling efficient and scalable voltage regulator module (VRM) performance.