Features

• High performance resonant / non-resonant digital control loop STVCOT™

• Drives up to 6 PSA satellites

• 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 PSA60 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 PSA satellites, the device is able to implement a scalable power

supply with output power in excess of 1 kW 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 PSA60 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 PSA60 is available in VFQFPN68, 8x8 mm package with exposed pad.

Application

• High efficiency Step-Down conversion