New 24V Cool-Power ZVS Buck Regulator Provides Pin Compatibility for 48V Migrations

January 16, 2018

24V CoolPower ZVS BuckToday we announced the PI3325-00-LGIZ, the latest addition to the PI332x family of Cool-Power ZVS Buck Regulators. The new regulator addresses the need for pin compatible 24V Direct to PoL solutions allowing system designers to simplify their board designs to support both 24Vin and 48Vin applications by changing only the regulator.  This compatibility enables the transition to 48V systems by supporting legacy 24V designs in the same footprint as 48V input devices.

The PI3325 is a 24Vin, optimized 20A, 5Vout nominal solution that is pin compatible with the previously released 20A 48Vin PI352x family, enabling scalable power options for both 24V and 48V Direct to point of Load (PoL) applications.

Many applications, including lighting, communications, and automotive equipment, require increasing power levels, and so are migrating from 24V to 48V distribution. The Cool-Power ZVS Regulators deliver high power density and high efficiency, while being simple to use, and allow power developers to create one layout to support both distribution voltages during the transition. The end result is first pass design success with best in class performance.

Offering all the same industry leading features of Vicor’s existing 48V Cool-Power ZVS Buck Regulators, the PI3325 supports 24Vin applications in a pin compatible 10mm x 14mm LGA package.  It requires only an output inductor and minimal passives for a complete, cost-effective design that consumes less than 740mm2 of PCB real estate.  Designed to be easily paralleled in combinations of up to three regulators, the PI332x family of regulators can all be scaled to support higher current loads.

Announced today and existing:

Part Number Package Input Voltage Range Nominal Output Voltage Current
PI3325-00-LGIZ 10x14mm 14-42V 5.0V 20A
PI3523-00-LGIZ 10x14mm 30-60V 3.3V 22A
PI3525-00-LGIZ 10x14mm 30-60V 5.0V 20A
PI3526-00-LGIZ 10x14mm 30-60V 12V 18A

                  (Green indicates a new part)


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