SiC632, SiC632A

www.vishay.com

Vishay Siliconix

S15-2801-Rev. A, 30-Nov-15

1

Document Number: 62992

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

DESCRIPTION

The SiC632 and SiC632A are integrated power stage

solutions optimized for synchronous buck applications to

offer high current, high efficiency, and high power density

performance. Packaged in Vishay’s proprietary 5 mm x 5 mm

MLP package, SiC632 and SiC632A enables voltage

regulator designs to deliver up to 50 A continuous current

per phase.

The

internal

power

MOSFETs

utilizes

Vishay’s

state-of-the-art Gen IV TrenchFET technology that delivers

industry benchmark performance to significantly reduce

switching and conduction losses.

The SiC632 and SiC632A incorporate an advanced

MOSFET gate driver IC that features high current driving

capability, adaptive dead-time control, an integrated

bootstrap Schottky diode, a thermal warning (THWn) that

alerts the system of excessive junction temperature, and

zero current detection to improve light load efficiency. The

drivers are also compatible with a wide range of PWM

controllers and supports tri-state PWM, 3.3 V (SiC632A) /

5 V (SiC632) PWM logic.

FEATURES

package

• Vishay’s Gen IV MOSFET technology and a

low-side MOSFET with integrated Schottky

diode

• Delivers up to 50 A continuous current

• High efficiency performance

• High frequency operation up to 1.5 MHz

• Power MOSFETs optimized for 19 V input stage

• 3.3 V (SiC632A) / 5 V (SiC632) PWM logic with tri-state and

hold-off

• Zero current detect control for light load efficiency

improvement

• Low PWM propagation delay (< 20 ns)

• Faster disable

• Thermal monitor flag

• Material categorization: for definitions of compliance

APPLICATIONS

• Multi-phase VRDs for computing, graphics card and memory

• Intel IMVP-8 VRPower delivery



• Up to 24 V rail input DC/DC VR modules



TYPICAL APPLICATION DIAGRAM

Fig. 1 - SiC632 and SiC632A Typical Application Diagram

PWM

controller

Gate

driver

5V

ZCD_EN#

DSBL#

PWM

THWn

BOOT

PHASE