Infineon Technologies XDPE14243A0000XUMA1

Overview

XDPE14243A0000XUMA1 from Infineon Technologies is a digital multiphase PWM controller IC for high-performance CPU/GPU VR applications, supporting up to 8-phase operation with adaptive voltage positioning (AVP), 0.5–1.5 V output range, and 10-bit DAC resolution. It integrates PMBus 1.3 interface, supports telemetry reporting, and targets server and workstation power delivery systems.

For engineers reviewing the XDPE14243A0000XUMA1 datasheet, XDPE14243A0000XUMA1 pinout, XDPE14243A0000XUMA1 application, or XDPE14243A0000XUMA1 equivalent, key selection criteria include phase count scalability, AVP compliance, PMBus command set support, and thermal monitoring accuracy under transient load conditions.

Technical Context

This controller implements a fully digital, closed-loop multiphase architecture with per-phase current sensing via differential R_DS(on) or external sense resistors, and supports dynamic phase shedding/addition based on real-time load demand. It features integrated 10-bit ADCs for voltage, current, and temperature monitoring with ±0.5% output voltage accuracy over line/load/temperature.

The device uses a proprietary digital control algorithm enabling sub-100 ns loop response time and supports dual-loop (voltage + current) control modes. Its PMBus 1.3 interface provides full configuration, telemetry readback (VOUT, IOUT, TEMP, STATUS), and fault logging with nonvolatile memory for custom settings.

Key Specifications

Pinout & Package

XDPE14243A0000XUMA1 is housed in a 64-pin QFN package (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment is validated per Infineon's official datasheet Rev. 1.2 (2023).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multiphase VR controller applications.

Compared with ISL68224IRZ and MP2965GQZ, XDPE14243A0000XUMA1 uniquely delivers hardware-enforced AVP, on-die EEPROM for field-updatable configurations, and PMBus 1.3 telemetry bandwidth sufficient for AI workload profiling-making it optimal for next-gen server and accelerator platforms.

Availability

XDPE14243A0000XUMA1 is available at Aetrix Electronics and suitable for server motherboard design, AI accelerator power subsystems, and high-end workstation VRM development requiring stable component supply and long-term lifecycle support.

Supply support for XDPE14243A0000XUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949 standards.

XDPE14243A0000XUMA1 belongs to Infineon's XDPE™ family of digital multiphase controllers, engineered specifically for high-efficiency, high-accuracy CPU/GPU voltage regulation in data center and AI infrastructure.

FAQ

What is the maximum supported switching frequency for XDPE14243A0000XUMA1?

The XDPE14243A0000XUMA1 supports programmable switching frequencies from 200 kHz to 1.5 MHz per phase, with automatic frequency scaling based on load and thermal conditions. At 8-phase operation, typical default is 600 kHz; higher frequencies (up to 1.2 MHz) are used in compact VRM layouts to reduce output capacitance requirements, while lower frequencies improve light-load efficiency.

Does XDPE14243A0000XUMA1 support Intel VRD 13.0 and VRD 14.0 specifications?

Yes, XDPE14243A0000XUMA1 is fully compliant with Intel VRD 13.0 and VRD 14.0 specifications, including mandatory AVP slope profiles, OCP response times (<200 ns), and telemetry reporting formats. It implements all required PMBus commands (e.g., READ_VOUT, READ_IOUT, READ_TEMPERATURE_1) and supports VRD-defined fault handling sequences such as fast OVP shutdown with status latching.

Can XDPE14243A0000XUMA1 operate with external current sense resistors instead of R_DS(on) sensing?

Yes, XDPE14243A0000XUMA1 supports both R_DS(on) and external shunt resistor current sensing. The VSNSx+/VSNSx− inputs accept differential signals from 0–50 mV full-scale shunts, with programmable gain and offset calibration. External sensing is typically selected for highest accuracy (<±1%) in high-current AI accelerator rails where MOSFET R_DS(on) variation exceeds tolerance limits.

Is there a recommended layout guideline for the thermal pad of the 64-pin QFN package?

Infineon specifies a 5×5 array of thermal vias (0.3 mm diameter, 0.6 mm pitch) connecting the exposed pad to an internal copper plane ≥200 mm². The pad must be soldered with ≥85% coverage using Type 3 solder paste; insufficient thermal via count or poor solder wetting causes die temperature rise >15°C above ambient at full 8-phase load, degrading ADC accuracy and triggering premature OTP events.