SIC631 Datasheet, PDF (1/18 Pages) Vishay Siliconix – 50 A VRPower Integrated Power Stage

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SiC631
Vishay Siliconix
50 A VRPower^® Integrated Power Stage
DESCRIPTION
The SiC631 is 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, SiC631
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 SiC631 incorporates an advanced MOSFET gate driver
IC that features high current driving capability, adaptive
dead-time control, an integrated bootstrap Schottky diode,
and zero current detection to improve light load efficiency.
The driver is also compatible with a wide range of PWM
controllers, supports tri-state PWM, and 5 V PWM logic.
A user selectable diode emulation mode (ZCD_EN#) is
included to improve the light load performance. The device
also supports PS4 mode to reduce power consumption
when system operates in standby state.

TYPICAL APPLICATION DIAGRAM
FEATURES
• Thermally enhanced PowerPAK^® MLP55-31L
package
• Vishay’s Gen IV MOSFET technology and a
low-side MOSFET with integrated Schottky
diode
• Delivers in excess of 50 A continuous current, 55 A at
10 ms peak current
• High efficiency performance
• High frequency operation up to 2 MHz
• Power MOSFETs optimized for 19 V input stage
• 5 V PWM logic with tri-state and hold-off
• Supports PS4 mode light load requirement for IMVP8 with
low shutdown supply current (5 V, 3 μA)
• Under voltage lockout for V_CIN
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
• Multi-phase VRDs for computing, graphics card and
memory
• Intel IMVP-8 VRPower delivery
- V_CORE, V_GRAPHICS, V_{SYSTEM AGENT} Skylake, Kabylake
platforms
- V_CCGI for Apollo Lake platforms
• Up to 24 V rail input DC/DC VR modules
5V
V_IN
PWM
controller
V_CIN
ZCD_EN#
PWM
Gate
driver
BOOT
PHASE
V_SWH
V_OUT
Fig. 1 - SiC631 Typical Application Diagram
S16-1261-Rev. C, 27-Jun-16
1
Document Number: 67104
For technical questions, contact: [e-mail]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000