PXE1610CDNG003XTMA1 - 6+1 Phase VR12.5/VR13 Digital Controller | Infineon
MPN: PXE1610CDNG003XTMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.81 | $3.81 |
| 10 | $3.61 | $36.10 |
| 100 | $3.25 | $325.00 |
| 500 | $2.9 | $1,450.00 |
| 1,000 | $2.55 | $2,550.00 |
PXE1610CDNG003XTMA1 Overview
A digital multiphase controller is a programmable PWM controller that uses firmware-defined loops to regulate multiple output rails simultaneously, typically replacing legacy analog PWM controllers in server and high-end desktop motherboards. Within the broader system hierarchy, this part sits as a power management IC (PMIC) and a special-purpose switching voltage regulator controller, specifically an Intel VR12.5/VR13-compliant device targeting CPU VCORE and memory rails.
Key features include per-phase current sensing, dynamic phase shedding, adaptive voltage positioning, and on-chip non-volatile memory for configuration storage. The 6+1 phase topology allows six phases to be paralleled for high-current VCORE rails plus one dedicated phase for the memory or auxiliary rail, supporting multi-rail/multi-phase operation from a single device.
The PXE1610 uses a digital control loop with high-resolution DPWM and ADC sampling to maintain tight output regulation under large load transients. The PMBus interface enables platform telemetry such as output current, temperature, and fault status, and supports black-box fault logging for diagnostic purposes during over-current, over-voltage, and over-temperature events.
Typical applications include server motherboards, workstation CPUs, high-end desktop CPUs, and Intel VR12.5/VR13 platforms. The part is also referenced in telecom and networking line cards using Intel-compatible CPU sockets and in embedded computing platforms requiring strict VCORE accuracy.
When designing with the PXE1610, ensure that the SVID bus is correctly terminated and that the bootstrap capacitors for the high-side gate drivers are sized per Infineon's reference design. Note that this part is intended for direct use with external DrMOS or gate-driver + MOSFET stages, not as a standalone point-of-load regulator.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the Infineon product page alone.
Drop-in alternatives for PXE1610CDNG003XTMA1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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PXE1610CDNG003XTMA1
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PXE1610CDNG003XTMA1 Maximum Ratings & Electrical Characteristics
| Part Number | PXE1610CDNG003XTMA1 |
| Manufacturer | Infineon Technologies (PRIMARION) |
| Function | Digital multi-phase PWM controller |
| Target Application | Intel VR12.5 / VR13 CPU power |
| Phase Configuration | 6+1 (six VCORE + one memory/auxiliary) |
| Interface | PMBus; Intel SVID rev 1.7 |
| VCORE Output Range | 0.25 V to 1.52 V (5 mV/step) |
| Memory Output Range | 0.5 V to 2.5 V (10 mV/step) |
| Number of Outputs | 6 (controller outputs to DrMOS / gate drivers) |
| Package | VQFN-48 (6 x 6 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Operating Temperature | -40 C to +125 C (industrial) |
| Configuration Memory | On-chip non-volatile configuration store |
PXE1610CDNG003XTMA1 Pin Configuration
| Pin 1 | VCC β Controller supply voltage |
| Pin 2 | GND β Ground |
| Pin 3 | SVID_DATA β SVID data line to CPU |
| Pin 4 | SVID_CLK β SVID clock from CPU |
| Pin 5 | SVID_ALERT β SVID alert to CPU |
| Pin 6 | PMB_CLK β PMBus clock |
| Pin 7 | PMB_DATA β PMBus data |
| Pin 8 | PMB_ALERT β PMBus alert |
| Pin 9 | PWM1 β PWM output phase 1 |
| Pin 10 | PWM2 β PWM output phase 2 |
| Pin 11 | PWM3 β PWM output phase 3 |
| Pin 12 | PWM4 β PWM output phase 4 |
| Pin 13 | PWM5 β PWM output phase 5 |
| Pin 14 | PWM6 β PWM output phase 6 |
| Pin 15 | PWMAUX β PWM output for memory/auxiliary rail |
| Pin 16 | CS1P β Current sense positive phase 1 |
| Pin 17 | CS1N β Current sense negative phase 1 |
| Pin 18 | CS2P β Current sense positive phase 2 |
| Pin 19 | CS2N β Current sense negative phase 2 |
| Pin 20 | CS3P β Current sense positive phase 3 |
| Pin 21 | CS3N β Current sense negative phase 3 |
| Pin 22 | CS4P β Current sense positive phase 4 |
| Pin 23 | CS4N β Current sense negative phase 4 |
| Pin 24 | CS5P β Current sense positive phase 5 |
| Pin 25 | CS5N β Current sense negative phase 5 |
| Pin 26 | CS6P β Current sense positive phase 6 |
| Pin 27 | CS6N β Current sense negative phase 6 |
| Pin 28 | CSAUXP β Current sense positive aux phase |
| Pin 29 | CSAUXN β Current sense negative aux phase |
| Pin 30 | VSEN1 β Voltage sense rail 1 |
| Pin 31 | VSEN2 β Voltage sense rail 2 |
| Pin 32 | VSEN3 β Voltage sense rail 3 |
| Pin 33 | VSEN_AUX β Voltage sense auxiliary rail |
| Pin 34 | TSEN β Temperature sense input |
| Pin 35 | VRHOT β VR hot thermal warning output |
| Pin 36 | EN β Enable input |
| Pin 37 | PGOOD β Power good output |
| Pin 38 | FAULT β Fault output |
| Pin 39 | BOOT_CFG β Bootstrap configuration pin |
| Pin 40 | ADDR β PMBus address select |
| Pin 41 | RESET β Reset input |
| Pin 42 | XTAL_IN β Crystal oscillator input |
| Pin 43 | XTAL_OUT β Crystal oscillator output |
| Pin 44 | V33 β 3.3 V internal supply |
| Pin 45 | V25 β 2.5 V internal supply |
| Pin 46 | DRV_VCC β Driver supply |
| Pin 47 | NC β Not connected (per datasheet) |
| Pin 48 | EP β Exposed thermal pad - connect to GND |
Typical Applications
PXE1610CDNG003XTMA1 is suitable for 6 applications: Intel VR12.5 Server CPU Power, Intel VR13 Workstation Motherboards, High-End Desktop (HEDT) CPUs, Telecom and Networking Line Cards, Embedded Computing Platforms, Storage Server Controllers.
Intel VR12.5 Server CPU Power
The PXE1610CDNG003XTMA1 is purpose-built for Intel VR12.5 single-socket server motherboards where a 6-phase VCORE and 1-phase memory rail must be precisely regulated. Its 6+1 phase topology drives six DrMOS stages in parallel for VCORE, supporting the 0.25-1.52 V SVID command range at 5 mV step resolution per the Intel VR12.5 specification. The integrated SVID rev 1.7 interface communicates VID codes directly to the CPU, eliminating the host microcontroller burden. PMBus telemetry allows BMC monitoring of output current, voltage, and temperature in real time for predictive maintenance. Estimated: at 130 W CPU load on a 6-phase rail, each phase handles ~22 A, requiring DrMOS stages rated for at least 30 A continuous.
Recommended
Intel VR13 Workstation Motherboards
The PXE1610CDNG003XTMA1 supports Intel VR13 via its SVID rev 1.7 implementation and is widely used in single-socket workstation boards requiring higher transient load handling than VR12.5 platforms. The 6-phase VCORE rail supports the higher VR13 current envelope, while the dedicated memory phase provides a clean 0.5-2.5 V rail for DDR4/DDR5 DIMMs. Adaptive voltage positioning reduces bulk output capacitor count by allowing controlled droop during load steps. Estimated: VR13 platforms may see 50 A load steps in <1 microsecond, demanding a loop bandwidth above 100 kHz which this digital controller supports. A typical reference design uses 470 microfarenterytic per phase plus a 1 mF bulk capacitor.
Recommended
High-End Desktop (HEDT) CPUs
HEDT platforms such as Intel Core X-series benefit from the PXE1610CDNG003XTMA1's 6-phase VCORE capability to deliver sustained >200 A currents under AVX workloads. The controller's dynamic phase shedding reduces switching losses at light loads, improving idle efficiency and meeting energy-star targets. PMBus current and temperature telemetry can be logged for overclocking diagnostics and thermal envelope validation. Estimated: at 250 W TDP, 6 phases at 41 A each with 25 C ambient require DrMOS R_DS(on) below 1 mOhm to maintain junction temperature below 125 C. The exposed thermal pad of the VQFN-48 should be soldered to at least 100 mm^2 of top-layer copper for adequate cooling.
Recommended
Telecom and Networking Line Cards
Telecom and networking line cards using Intel-compatible CPU sockets deploy the PXE1610CDNG003XTMA1 for its PMBus telemetry, fault logging, and SVID compliance. Network equipment vendors require per-rail monitoring and black-box fault recording, which the controller's on-chip non-volatile memory and PMBus interface provide natively. The 6+1 phase configuration supports both the CPU VCORE and an auxiliary management rail from a single device, reducing BOM cost. Estimated: a typical telecom line card draws 80-150 W on VCORE with the remainder spread across management rails; the PXE1610's single-device integration saves 30-50% board area versus a discrete analog solution. Operate the controller at industrial temperature grade (-40 to +85 C) with conformal coating for outdoor cabinet deployments.
Recommended
Embedded Computing Platforms
Embedded computing platforms built around Intel Xeon-D or Atom-class CPUs that use VR12.5/VR13 voltage identification can leverage the PXE1610CDNG003XTMA1 for tight regulation and PMBus-based health monitoring. Industrial PCs, medical imaging systems, and edge AI appliances benefit from the controller's firmware-defined loop, which can be tuned for the specific load profile of the platform. The integrated fault logging reduces mean-time-to-repair in field-deployed systems. Estimated: at 65 W CPU load in a 6-phase configuration, each phase handles 11 A average with peaks to 30 A during computational bursts; select DrMOS stages rated for 40 A continuous to provide thermal margin in sealed enclosures.
Recommended
Storage Server Controllers
Storage server controllers and JBOD management modules often require VCORE rails for Intel-based management processors and benefit from the PXE1610CDNG003XTMA1's PMBus-driven health monitoring for RAID card diagnostics. The controller's SVID compliance allows drop-in use with various Intel management engine SKUs, simplifying multi-vendor storage platform designs. The 6+1 phase capability supports both the controller CPU and an auxiliary DIMM rail from a single IC. Estimated: a typical storage controller CPU draws 25-40 W, well within a 6-phase rail's capability; the dedicated memory phase handles up to 10 A continuous for DDR4 buffer DIMMs. The exposed thermal pad aids heat dissipation in 1U rack chassis with restricted airflow.
Recommended
Recommended Products Summary
Engineering reference data for PXE1610CDNG003XTMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PXE1610CDNG003XTMA1 | PXE1610CDN-G003 | XDPE12284C0000XUMA1 |
|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Phase Configuration | 6+1 | 6+1 | 6+1 | 8+0 |
| Target Spec | Intel VR12.5/VR13 | Intel VR12.5/VR13 | Intel VR12.5/VR13 | Intel VR13/VR14 |
| PMBus Interface | Yes | Yes | Yes | Yes |
| On-chip Config Memory | Yes (non-volatile) | Yes | Yes | Yes |
Key Differentiators
- Single-chip 6+1 phase solution with integrated configuration memory (vs PXE1110CDN (lower-current 3+1 phase variant))
- Native VR12.5/VR13 SVID rev 1.7 compliance (vs Discrete analog PWM controller solutions)
- On-chip non-volatile configuration storage (vs External EEPROM-based digital controllers)
Design Notes
Estimated: at 6-phase operation with 130 W VCORE load, the controller itself dissipates approximately 1-2 W. The VQFN-48 exposed thermal pad should be soldered to a top-layer copper pour of at least 100 mm^2 to keep junction temperature below 125 C. Without the thermal pad connection, junction temperature can exceed 150 C at 25 C ambient. For high-altitude or sealed-enclosure deployments, add thermal vias under the EP to bottom-layer copper for additional heat sinking.
Place current-sense traces in parallel pairs with Kelvin routing directly to the sense resistor pads to avoid ground-loop errors. The SVID bus traces should be length-matched within 5 mm and routed over a continuous ground plane to maintain signal integrity at the rev 1.7 protocol's edge rates. PMBus pull-up resistors (typically 2.2 kOhm to 3.3 V) must be placed close to the controller. Decoupling: 1 microfarad ceramic plus 0.1 microfarad ceramic on each VCC pin, with a 10 microfarenterytic bulk capacitor on the V33 rail.
Do not confuse the PXE1610 with the next-generation XDPE12284C0000XUMA1 - they share Infineon's digital controller family but the XDPE is pin-incompatible and targets VR13/VR14. Verify that the CPU platform's SVID revision matches rev 1.7 supported by the PXE1610; some newer Intel platforms require rev 1.9 or later and would need an XDPE-class controller. The PWMAUX pin (memory rail) requires its own current-sense resistor and DrMOS stage - omitting it prevents memory rail regulation even if VCORE operates correctly.
Compliance Information
RoHS and REACH compliance per Infineon product page. Not AEC-Q100 qualified - this part targets commercial server/workstation platforms rather than automotive applications.
