Vishay Siliconix

SiC772CD

Document Number: 63822

S13-1024-Rev. B, 10-Jun-13

www.vishay.com

1

This document is subject to change without notice.

DrMOS Integrated Power Stage

DESCRIPTION

The SiC772 is an integrated power stage solution optimized

for synchronous buck applications to offer high current, high

efficiency and high power density performance. Packaged in

Vishay’s proprietary 6 mm x 6 mm MLP package, SiC772

enables voltage regulator design to deliver in excess of 40 A

per phase current.

The internal Power MOSFETs utilizes Vishay’s state-of-the-

art TrenchFET Gen IV technology that delivers industry

bench-mark performance to significantly reduce switching

and conduction losses.

The SiC772 incorporates an advanced MOSFET gate driver

IC that features high current driving capability, adaptive

dead-time control, and integrated bootstrap Schottky diode;

a thermal warning (THWn) alerts the system of excessive

junction temperature. This driver is also compatible with wide

range of PWM controllers with the support of Tri-state PWM,

5 V PWM Logic, and skip mode (SMOD) for improve light

load efficiency.

FEATURES

•

Thermally enhanced PowerPAK MLP6x6-40L

package

•

Industry benchmark MOSFET with integrated

Schottky diode

•

Delivers in excess of 40 A continuous current

•

86 % peak efficiency at 19 V to 1 V and 18 A

•

High frequency operation up to 1.5 MHz

•

Power MOSFETs optimized for 19 V input stage

•

5 V PWM Logic with Tri-state and hold-off

•

SMOD logic for light load efficiency boost

•

Low PWM propagation delay (< 20 ns)

•

Thermal monitor flag

•

Faster enable/disenable (10 ns)

•

Compliant with Intel DrMOS 4.0 specification

•

Material categorization: For definitions of compliance

Note:

* This

datasheet

provides

information

about

parts

that are

RoHS-compliant and/or parts that are non-RoHS-compliant. For

example, parts with lead (Pb) terminations are not RoHS-compliant.

Please see the information/tables in this datasheet for details.

APPLICATIONS

•

Synchronous buck converters

•

Multi-phase VRDs for CPU, GPU, and memory

•

DC/DC POL modules

•

Notebook computers

TYPICAL APPLICATION DIAGRAMM

Figure 1: SiC772 Typical Application Diagram

PWM

Controller

Gate

Driver

5V

VCIN

SMOD

DSBL#

PWM

THWn

BOOT

VSHW

PHASE

Available

Available