p /10/2 Primarion VR Chipset Up to 2 MHz switching 1 to 6 phases Reduced output cap – 100A, 1000A/us with 500uF MLCC Current sense calibration – Built-in cal on startup Digital temperature compensation I2C interface – Monitor I,V, T, faults – Real-time voltage control Use with discrete or integrated power stage +3.3V supply, QFN package 30A Power Stage Integrated control FET and drivers Integrated current and temp sensor Discrete sync FET – Customize for each application CSP package – Lead or lead-free available PX3520 Integrated Power Stage PX3511 Driver High performance FET Driver – 3.3V Logic compatible “A” Version: – Variable low-side drive “B” Version: – Variable low and high-side driver PX3538/9 Digital Controllers

p /10/2 PX phase Controller Block Diagram Integrated voltage and current digitizers Programmable digital control loop Programmable fault settings Integrated non-volatile memory

p /10/2 PX3525 Integrated Power Stage Integrated high and low- side current sensor – Process and temp insensitive Pulse-by-pulse OCP Integrated temp sensor Low RDSon FETs – 15 mOhm high-side – 2 mOhm low-side 30A per phase – 20% duty factor CSP package

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p /10/2 Low Cost VR Solutions VR11 Applications – 0.8 to 1.6V – 1200A/us 6-phase digital controller – Self calibrating current sense – Low output cap technology – I2C bus for monitoring & control Discrete drivers and FETs Discrete 2U VRM solution 82% Efficiency at 1.25V & 130A

p /10/2 High Current Density VR Solutions VR11 Applications – 0.8 to 1.6V – 1200A/us 6-phase digital controller – Self calibrating current sense – Low output cap technology – I2C bus for monitoring & control Integrated Power Stage & FET Integrated 1U VRM solution 84% Efficiency at 1.25V & 130A Integrated VRD Solution 87% Efficiency at 1.2V & 130A

p /10/2 VR Power Code User Interface Easy to use GUI Runs on any PC with USB interface Configure system parameters Monitor telemetry and faults Fine tune feedback loop and set fault trip thresholds

p /10/2 PX3542 Graphics Controller Features 4- to 6-phase operation Maximum current: 150A Output voltage: 0.5V - 1.6V Switching frequency: 100 kHz to 2 MHz Internal high precision voltage reference –  10mV voltage setpoint accuracy Startup and maximum voltages set through external resistor (tamper resistant) – 2-bit VID input for final voltage set Programmed in NVM, vmax resistor limits max output “Plug and play” extra phases – Driver detect prior to soft-start disables unpopulated phases – Phase dropping based on current balance

p /10/2 PX3542 Graphics Controller Features Programmable current balance offset (+/- 10%) for thermal balancing Digitally programmable loadline and loop compensation Digital temperature sensor compensation Active Transient Response (ATR) enables meeting transient requirements with reduced output capacitance I2C-bus interface for monitoring, control and configuration – Current & Voltage readout – Query “Fault” details (out of balance channel etc.) Internal NVM to store custom configurations with eight programmable active voltage position (AVP) system configurations RoHS compliant 48-ld QFN package

p /10/2 PX3542 Fault Detection Capability Extensive fault detection capability with two user configurable output fault pins – Input Under-voltage – Output Under-/Over-voltage – Per Phase and Total Output Current – Current balance – Auxiliary 12V supply (both fault and return reported) – Multiple Internal and External Temperature Limits

p /10/2 PX3542 Graphics Application Example

p /10/2 Low Cost Graphics Solutions High End Graphics Applications – 0.5V to 1.6V – up to 2MHz switching freq – 150A max 6-phase digital controller – Self calibrating current sense – Low output cap technology – I2C bus for monitoring & control – Auto driver detect – Auto current balance phase drop Discrete drivers and FETs Discrete VRD solution 84% Efficiency at 1.25V & 130A

p /10/2 GPU Power Code User Interface Easy to use GUI Runs on any PC with USB interface Configure system parameters Monitor telemetry and faults Fine tune feedback loop and set fault trip thresholds

p /10/2 Di-POL TM PX7510 Block Diagram

p /10/2 Di-POL TM PX7510 Application Example Single-Phase POL Converter