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Digital Dual-Phase Synchronous Buck Controller with Auto-Control® & SMBus™ / PMBus™ - PV3205

The PV3205 is a dual phase digital synchronous buck controller with adaptive loop compensation, for point-of-load (POL) applications. The output can supply 0.6 V to 5.5 V, and can be configured and controlled via PMBus, with a single resistor, or through programming stored in the non-volatile memory (NVM).

This controller may be used in single or dual phase mode. When used in dual phase mode, phases may be added or removed as the load varies, so that efficiency is maximized over the load range. Additionally, the outputs of the phases are interleaved so that the effective switching frequency at the output is doubled, and with Powervation’s Digital Stress Share (DSS) and PLL synchronization, multiple PV3205 devices may be used in parallel to increase the number of phases supporting the application’s load. PV3205 uses Powervation’s proprietary adaptive digital control loop, Auto-Control, which adapts on a cycle-by-cycle basis, and provides active loop compensation to stabilize the control loop as the phases are added and removed.

The digital functionality of this PMBus compliant power converter controller allows system telemetry (remote measurement and reporting) of current, voltage, and temperature information. Additionally, to maximize system performance and reliability, the IC provides temperature correction/compensation of several parameters. PV3205 is a fully protected DC/DC solution that utilizes analog and digital functionality to maximize protection of the system.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number | PV3205
Status | Active
Package | VQFN32V5050V
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes


Phase Count


QFN Package

5 mm x 5 mm

Supply Voltage

0.6 V to 5.5 V

Controller Bias


PMBus® Protocol


Interface SVID


Interface Parallel VID



Auto-Control®: Real-Time Adaptive Auto-Tuning

Programmable Fsw

375 kHz - 1.25 MHz

Phase Add/Drop




Single Pin CONFIG™

8 Tables







System Good


Sensors / Precision Telemetry


Sensors / Precision Telemetry Tsense Supported

Internal Die Sense & External

Fault Response OVP

Retry / Latching

Fault Response OCP

Retry / Latching

Fault Response SCP

Retry / Latching

Fault Response LOS

Retry / Latching

Fault Response OTP

Retry / Latching

Fault Response Phase Loss


SCP Temp Compensation


Support NTC Sensor


Configurable SALRT


Programmable Load-Line


Integrator Gain Scalar


Min. Operating Temperature [°C]


Max. Operating Temperature [°C]



• Auto-Control Real-Time Adaptive Loop Compensation
• SMBus Interface with PMBus Power System Management Protocol
• Precision Measurement & Telemetry Reporting: VOUT, IOUT, VIN, EOUT, Temperature, Duty Cycle, fSW
• Programmable Protection & Warning
− Output OVP, OCP, SCP, LOS, UV Warning
− Input UVLO, OVLO
− Internal & External OTP, UT Warning, & OT Warning
− Phase Loss Fault
− Temperature Compensated Faults
− Programmable Latching & Auto-Restart
− Configurable SALRT
• Single-Pin Configuration with Eight Profile Tables
• Power Management and Conversion
− VOUT Range: 0.6 V to 5.5 V
− Lower Jitter and Improved Transient Performance
− ±0.5% VOUT, ±1.5% VIN, & ±3% IOUT Accuracy Over Temperature
− Adjustable Load-Line (0 mΩ to 20 mΩ) with Programmable BW & Settling Time
− Automatic, Configurable Phase Add/Drop
- New DSS-2™, Digital Stress Share Bus for nɸ Current Sharing Operation (Firmware N87 Only)
− Programmable Frequency (375 kHz to 1.25 MHz)
− Programmable VOUT, Voltage Tracking, Margining, & Sequencing
− Frequency Synchronization & Phase Alignment
− Programmable Precision Duty Cycle Limit
− Temperature Compensated Phase Current Sense & Matching
− Interleaved Phase Operation with Phase Current Sharing
− Power Good, System Good, & Remote Power Down
− Internal & External TSENSE
o Programmable Gain & Offset for External Sense Elements
• Internal Anti-Fuse Based NVM
− -40°C to 125°C (20 year data retention rating)
• 32-Lead 5 mm x 5 mm QFN package (RoHS/PbF)