PMBus Power Modules Crank Up The Power

Renesas Electronics launched a pair of encapsulated hybrid digital dc/dc PMBus power modules, the 10A ISL8280M and 15A ISL8282M. Both modules offer a power density of 115 mA/mm² in a 12 mm x 11 mm package, with up to 95% peak efficiency. They are complete single-channel, synchronous step-down regulated power supplies that operate over an input-voltage range of 5V to 16V.

Also on tap are the new ISL8210M and ISL8212M analog power modules, offered in the same pin-to-pin compatible 12 mm x 11 mm package with 10A and 15A of output current, respectively. The hybrid digital and analog power modules provide point-of-load (POL) conversion for advanced FPGAs, DSPs, ASICs and memory used in servers, storage, optical networking, telecom, and a broad range of space-constrained industrial applications. Each device integrates a PWM controller, MOSFETs, and inductor inside a new thermally optimized, Grid High Density Array (GHDA) encapsulated module. To complete the power supply, designers simply add input and output ceramic capacitors.

The ISL828xM hybrid digital and ISL821xM analog power modules feature integrated LDOs that enable single-supply operation. They leverage Renesas’ patented R4™ high-speed control loop architecture with inherent line voltage feed-forward, providing designers a unique combination of ultra-fast load transient response and high noise immunity. Their proprietary Grid HDA package offers unmatched electrical and thermal performance through a single-layer conductive package substrate that efficiently transfers heat from the module to the system board and dissipates it without requiring airflow or heatsinks – even under heavy load conditions. 

Features of ISL828xM Hybrid Digital and ISL821xM in a nutshell:

• 4.5V to 16.5V single rail input voltage, and 0.5V to 5V output voltage settings
• ± 1.5% output voltage accuracy over line, load, and temperature with remote sense
• 256 output voltage options configurable through a simple pin-strap resistor setting
• Hybrid digital modules are SMBus/I²C/ PMBus v1.3 compatible up to 1.25MHz
• Seven switching frequency options from 300kHz to 1MHz
• Selectable PFM/light load efficiency mode
• Comprehensive fault protection with voltage, temperature and current protections

Learn more, visit Renesas Electronics.