SiC788, SiC788A
www.vishay.com
Vishay Siliconix
50 A VRPower® Integrated Power Stage
DESCRIPTION
FEATURES
• Thermally enhanced PowerPAK® MLP66-40L
package
The SiC788 and SiC788A 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
6 mm x 6 mm MLP package, SiC788 and SiC788A enable
voltage regulator designs to deliver up to 50 A continuous
current per phase.
• Vishay’s Gen IV MOSFET technology and a
low-side MOSFET with integrated Schottky
diode
• Delivers up to 50 A continuous current
• 95 % peak efficiency
The
internal
power
MOSFETs
utilize
Vishay’s
• High frequency operation up to 1.5 MHz
• Power MOSFETs optimized for 12 V input stage
state-of-the-art Gen IV TrenchFET® technology that delivers
industry benchmark performance to significantly reduce
switching and conduction losses.
• 3.3 V (SiC788A) and 5 V (SiC788) PWM logic with tri-state
and hold-off
The SiC788 and SiC788A 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
skip mode (SMOD#) 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 (SiC788A)
and5 V (SiC788) PWM logic.
• SMOD# logic for light load efficiency improvement
• Low PWM propagation delay (< 20 ns)
• Thermal monitor flag
• Faster enable / disable
• Under voltage lockout for VCIN
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
• Multi-phase VRDs for CPU, GPU, and memory
TYPICAL APPLICATION DIAGRAM
5 V
V
IN
BOOT
PHASE
VCIN
SMOD#
VSWH
DSBL#
VOUT
Gate
driver
PWM
controller
PWM
THWn
Fig. 1 - SiC788 and SiC788A Typical Application Diagram
S20-0486-Rev. D, 29-Jun-2020
Document Number: 62985
1
For technical questions, contact: powerictechsupport@vishay.com
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