Features
• High performance resonant / non-resonant digital control loop STVCOT™
• Drives up to 6 cells with STPRDC01 and STPRDC02, from 50 W up to > 300 W
• Compliant with Intel VR13, VR13.HC and AVS protocols
• Fully configurable through PMBus™ rev1.2
– Telemetry for primary and secondary
– Full IC configuration / management
– Voltage positioning
• Advanced power management
– Auto cell shedding with PFM
– Low power 1.8 V logic
• Programmable protections
– OV / UV and FB disconnection
– Analog and digital overcurrent protection (OCP)
– Current sharing warning
– Black box recorder (BBR)
– Catastrophic fault precursor (CFP)
• Embedded non-volatile memory (NVM)
• Primary μC interface for telemetry (PuC)
• Single-wire synchronous rectifier driver
• RST and EN1V8 for low power mode
• VFQFPN68, 8x8 mm package

Description
The STPDDC60 is a high performance digital controller featuring the innovative and
patented resonant / non-resonant ST VCOT™ control loop that allows to implement a
high efficiency DC-DC converter in single-stage conversion directly from the 60 V
bus.
In combination with STPRDC01 and STPRDC02, the device is able to implement a
scalable power supply with output power ranging from 50 W up to >300 W featuring
Auto Cell Shedding and PFM to optimize the overall efficiency maintaining a >90%
baseline over the whole current range without compromising the load transient and
DVID response.
The STPDDC60 can be fully configured through PMBus™ to minimize external
component count. Full set of telemetry is provided including BBR, CFP and primary /
secondary side telemetry.
The device assures fast and independent protection against overcurrent, over/undervoltage
and FB disconnection.
The STPDDC60 is available in VFQFPN68, 8x8 mm package with exposed pad.

Application
• High efficiency Step-Down conversion