Renesas Electronics ISL828xM and ISL821xM power modules

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

Also announced are the ISL8210M and ISL8212M analog power modules, offered in the same pin-to-pin compatible 12 x 11 mm package with 10 and 15 A 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 thermally optimised, 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’s R4 high-speed control loop architecture with inherent line voltage feed-forward, providing designers with a combination of ultrafast load transient response and high noise immunity. Their Grid HDA package offers high 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.

Other features include: 4.5 to 16.5 V single rail input voltage and 0.5 to 5 V 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; seven switching frequency options from 300 kHz to 1 MHz; selectable PFM/light load efficiency mode; and comprehensive fault protection with voltage, temperature and current protections.