Product Description

The PI3751-00 is a high efficiency, wide input range DC-DC

ZVS-Buck-Boost regulator. This high density module

integrates controller, power switches, and support

components. The integration of a high performance Zero-

Voltage Switching (ZVS) topology, within the PI3751-00,

increases point of load performance providing best in class

power efficiency.

The PI3751-00 requires an externally applied 5 V bias to the

VDR input, an external inductor, resistive divider and

minimal capacitors to form a complete DC-DC switching

mode buck-boost regulator.

The ZVS architecture also enables high frequency

operation while minimizing switching losses and

maximizing efficiency. The high switching frequency

operation reduces the size of the external filtering

components, improves power density, and enables

very fast dynamic response to line and load

transients. The PI3751-00 sustains high switching

frequency up to the rated input voltage without

sacrificing efficiency and supports large conversion ratios.

Features

•

•

Wide input voltage range of 38 V to 60 V

•

Wide output voltage range of 38 V to 50 V

•

Up to 200 W continuous output power / 368 W peak

•

•

Fast transient response in VRM 12.X applications

•

Light load mode < 200 mW no load power dissipation

•

VTM compatibility mode

•

High side current sense amplifier

•

User configurable differential amplifier

•

Input / Output Over / Under Voltage Protection

•

Temperature lockout protection

•

Fast and slow current limits

•

Applications

Package Information

•

10 mm x 14 mm x 2.56 mm Land Grid Array Module

Rev 1.0

vicorpower.com

Page 1 of

3

12/2014

800 927.9474

38 V to 60 Vin, 200 W Cool-Power ZVS Buck-Boost

PI3751-00

Typical Application

Applications Diagram for use within a Factorized Power, VR12.5 Design