XDPE19283B0000XUMA1 - 8-Phase Dual-Loop Digital Controller | Infineon
MPN: XDPE19283B0000XUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.92 | $89.20 |
| 100 | $7.95 | $795.00 |
| 500 | $7.2 | $3,600.00 |
| 1,000 | $6.55 | $6,550.00 |
XDPE19283B0000XUMA1 Overview
A multiphase buck controller is a power-management IC that drives multiple synchronous buck phases in parallel to supply high-current CPU/GPU/SoC core rails. Within the broader power-management IC hierarchy, a digital multiphase controller sits above simple voltage regulators and below fully integrated PMICs; it pairs an analog front end with a programmable digital core (in this case, an ARM Cortex-M0) for telemetry, fault handling, and adaptive loop compensation.
Key features include a programmable ARM Cortex-M0 processor for non-volatile configuration, PMBus rev 1.3 compliant serial interface supporting up to 1 MHz bus speed, and per-phase current sensing for accurate load-line regulation. The controller integrates high-performance analog front ends with digital control loops, supports flexible PWM phase order and phase shedding, and provides extensive telemetry for voltage, current, and temperature.
The XDPE19283B employs an analog front-end plus digital control-loop architecture, where the ARM Cortex-M0 manages telemetry, fault response, and adaptive voltage positioning. Compared with purely analog multiphase controllers, the digital core enables firmware-updatable configurations, per-rail loop tuning, and full PMBus monitoring - critical for AMD SVI3 platforms that require precise dynamic VID transitions.
Typical applications include AMD AM5/TR5 desktop and server CPU VR cores, workstation motherboard Vcore rails, GPU accelerator cards with SVI3 interfaces, and high-end desktop VRM modules. The 8-phase capability delivers the high continuous currents demanded by modern multi-core CPUs under transient load.
When designing with this part, follow the Infineon reference layout for the PG-VQFN-40-13 exposed-pad package and observe AMD SVI3 platform bring-up sequencing. The PMBus address and rail configuration are set by external strapping resistors.
This page synthesizes distributor pricing, Infineon same-family alternatives, and practical design guidance that the manufacturer datasheet alone does not present, helping procurement and engineering teams evaluate the XDPE19283B0000XUMA1 for new designs and second-source validation.
Drop-in alternatives for XDPE19283B0000XUMA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with XDPE19283B0000XUMA1 (same form factor and footprint) — differing in Package, Operating Temperature, Number of Phases, Output Voltage Range, Topology.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
XDPE12284C0000XUMA1
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View Datasheet →XDPP1148100BXUMA1
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View Datasheet →XDPP1140100BXUMA1
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View Datasheet →XDPE19283B0000XUMA1 Maximum Ratings & Electrical Characteristics
| Topology | Digital multiphase PWM controller |
| Number of Phases | 8 phases |
| Number of Loops | Dual-loop |
| Output Voltage Range | 0.25 V to 2.8 V |
| Output Voltage Step | 5 mV |
| Phase Configurations | 8+0, 7+1, 6+2, 4+4 |
| Compliant Specification | AMD SVI3 Rev 2.0 |
| Serial Interface | PMBus rev 1.3 (up to 1 MHz) |
| Embedded Processor | ARM Cortex-M0 |
| Package | PG-VQFN-40-13 (40-pin VQFN, exposed pad) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
XDPE19283B0000XUMA1 Pin Configuration
| Pin 1 | PWM1 — Phase 1 PWM output |
| Pin 2 | PWM2 — Phase 2 PWM output |
| Pin 3 | PWM3 — Phase 3 PWM output |
| Pin 4 | PWM4 — Phase 4 PWM output |
| Pin 5 | PWM5 — Phase 5 PWM output |
| Pin 6 | PWM6 — Phase 6 PWM output |
| Pin 7 | PWM7 — Phase 7 PWM output |
| Pin 8 | PWM8 — Phase 8 PWM output |
| Pin 9 | VCC — Controller supply voltage |
| Pin 10 | GND — Ground |
| Pin 11 | CS1P — Phase 1 current sense positive |
| Pin 12 | CS1N — Phase 1 current sense negative |
| Pin 13 | CS2P — Phase 2 current sense positive |
| Pin 14 | CS2N — Phase 2 current sense negative |
| Pin 15 | VSEN — Voltage sense feedback |
| Pin 16 | RT — Timing resistor |
| Pin 17 | COMP — Loop compensation |
| Pin 18 | FB — Output voltage feedback |
| Pin 19 | TSEN — Temperature sense input |
| Pin 20 | IMON — Current monitor output |
| Pin 21 | SDA — PMBus data |
| Pin 22 | SCL — PMBus clock |
| Pin 23 | ALERT — PMBus alert output |
| Pin 24 | ADDR — PMBus address select |
| Pin 25 | CONFIG — Configuration strap |
| Pin 26 | SVI3 — SVI3 serial interface to AMD CPU |
| Pin 27 | EN — Enable input |
| Pin 28 | PGOOD — Power good output |
| Pin 29 | FAULT — Fault indicator |
| Pin 30 | BOOT — Bootstrap voltage reference |
| Pin 31 | REFOUT — Internal reference output |
| Pin 32 | VDRV — Driver supply voltage |
| Pin 33 | NC — Not connected (per datasheet) |
| Pin 34 | NC — Not connected (per datasheet) |
| Pin 35 | NC — Not connected (per datasheet) |
| Pin 36 | NC — Not connected (per datasheet) |
| Pin 37 | TEST — Test mode (factory use) |
| Pin 38 | RESET — Reset input |
| Pin 39 | GPIO1 — General purpose I/O |
| Pin 40 | GPIO2 — General purpose I/O |
Typical Applications
XDPE19283B0000XUMA1 is suitable for 6 applications: AMD AM5 Desktop CPU Vcore Rail, AMD TR5 Server Workstation Vcore, High-End Desktop Workstation Motherboard, GPU Accelerator Card Vcore, VRM Module for Server CPU, High-Performance Computing Server Platform.
AMD AM5 Desktop CPU Vcore Rail
The XDPE19283B0000XUMA1 is qualified for AMD SVI3 Rev 2.0 platforms and is a natural fit for AMD AM5 desktop CPU Vcore regulation, with 8 phases in 8+0 or 6+2 configurations. Its 0.25 V to 2.8 V output range covers low-power idle states through high-current turbo boost transients, while the 5 mV VID step matches AMD SVI3 dynamic voltage positioning. The PMBus rev 1.3 interface at 1 MHz enables fast telemetry polling by BIOS for adaptive voltage management.
Recommended
AMD TR5 Server Workstation Vcore
Server-grade AMD TR5 platforms benefit from the XDPE19283B0000XUMA1's dual-loop topology, which can drive two rails (Vcore and SoC) from a single controller in a 4+4 configuration. Each loop can be independently compensated and monitored over PMBus, allowing per-rail telemetry and fault isolation. The ARM Cortex-M0 non-volatile configuration supports secure boot and per-platform calibration data retention.
Recommended
High-End Desktop Workstation Motherboard
Workstation motherboards with multi-CPU or workstation-GPU configurations can leverage the XDPE19283B0000XUMA1's dual-loop capability to drive a CPU Vcore and a discrete GPU core rail from one controller. The 7+1 configuration allocates 7 phases to CPU Vcore for high continuous current while dedicating 1 phase to a secondary GPU or auxiliary rail, sharing PMBus telemetry across both.
Recommended
GPU Accelerator Card Vcore
GPU accelerator cards targeting AMD SVI3 hosts can use the XDPE19283B0000XUMA1 to deliver clean Vcore rails to GPU ASICs and HBM memory. The 8-phase design supports high transient currents during deep-learning training bursts, while the digital loop and per-phase current sensing provide the telemetry and adaptive voltage positioning required for stable GPU clock frequencies under load.
Recommended
VRM Module for Server CPU
Soldered-down VRM daughter boards for AMD SVI3 server CPUs use the XDPE19283B0000XUMA1 as the controller of choice, paired with high-current DrMOS power stages. Its PMBus monitoring simplifies system-level telemetry aggregation, while the ARM Cortex-M0 allows OEM-specific tuning without external EEPROM. The exposed-pad PG-VQFN-40-13 package simplifies thermal design on densely populated VRM modules.
Recommended
High-Performance Computing Server Platform
HPC servers with multiple AMD SP3/SP5 sockets can use the XDPE19283B0000XUMA1 per socket for high-current CPU Vcore regulation. The PMBus 1 MHz capability enables rapid per-rail telemetry polling by the BMC for thermal and power capping, while adaptive voltage positioning optimizes energy efficiency across workload profiles. The digital loop simplifies EMI compliance and dynamic load-line tuning during design validation.
Recommended
Recommended Products Summary
Engineering reference data for XDPE19283B0000XUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | XDPE12284C0000XUMA1 | XDPP1148100BXUMA1 | XDPP1140100BXUMA1 |
|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon |
| Package | VQFN-40 (PG-VQFN-40-13) | VQFN-40 (PG-VQFN-40) | VQFN-40 (PG-VQFN-40) | VQFN-40 (PG-VQFN-40) |
| PMBus Speed | up to 1 MHz | PMBus rev 1.3 | PMBus rev 1.3 | PMBus rev 1.3 |
| Lifecycle Status | Active | Active | Active | Active |
Key Differentiators
- Dual-loop topology in a single 40-pin VQFN (vs XDPE12284C0000XUMA1)
- AMD SVI3 Rev 2.0 native compliance (vs Generic digital multiphase controllers)
- PMBus rev 1.3 at 1 MHz bus speed (vs Standard 400 kHz PMBus)
Design Notes
The PG-VQFN-40-13 exposed pad is the primary thermal path for the XDPE19283B0000XUMA1. Under 8-phase switching operation the controller itself dissipates moderate power, but combined with the adjacent DrMOS stages the local copper area must reach at least 1 square inch of unbroken pour, with 6-8 thermal vias under the pad to inner power planes. Insufficient thermal relief causes the controller's internal temperature sense (TSEN) to throttle or assert FAULT prematurely.
Follow the Infineon reference layout for the XDPE19283B0000XUMA1: place PMBus pull-ups (typically 10 kohm to 3.3 V) close to the controller, route SDA/SCL away from PWM switching nodes, and use Kelvin sensing for VSEN and CS lines directly to the output capacitors and inductor DCR sense points. The SVI3 serial interface traces to the AMD CPU socket should be length-matched and reference-grounded to avoid VID decoding errors.
Strapping resistors on ADDR, CONFIG, and any platform-specific pins set the PMBus address and SVI3 behavior at power-up. Place these resistors as close as possible to the controller pins to prevent noise coupling. Use guard traces around CS sense lines to reject switching noise from adjacent PWM outputs, and ensure the exposed pad has a single solderable opening with via stitching on a 0.5-1.0 mm pitch.
Estimated: the XDPE19283B0000XUMA1's PMBus address is set by external strapping; ensure the ADDR resistor matches the platform's SMBus topology to avoid conflicts with other PMBus devices on the same bus. Do not connect NC pins to any net - some are reserved for factory test modes and can cause unexpected behavior. Always validate the SVI3 firmware sequence against AMD's reference code before mass production.
Compliance Information
RoHS and lead-free per Infineon product page. Halogen-free status not explicitly stated in available data - marked unknown. AEC-Q100 not applicable as the part targets desktop/server computing, not automotive.
