Texas Instruments TPS54972EVM-222

Overview

TPS54972EVM-222 from Texas Instruments is an evaluation module designed to demonstrate the TPS54972 synchronous buck tracking/termination regulator, supporting 3.0–4.0 V input and ±9 A output current at 1.25 V setpoint, with 700 kHz switching frequency and 89.7% peak efficiency under 3.3 V/2.5 A conditions. It enables rapid validation of point-of-load power delivery in DDR memory termination and FPGA core supply applications.

For engineers reviewing the TPS54972EVM-222 datasheet, TPS54972EVM-222 test setup, TPS54972EVM-222 load transient response, or TPS54972EVM-222 compensation network configuration, this EVM provides verified performance data-including loop bandwidth (71–80 kHz), phase margin (41–42°), output ripple (7–10 mV_PP), and rise time (4.7–15 ms)-to accelerate design-in of high-current, low-voltage DC/DC regulation.

Technical Context

The TPS54972EVM-222 implements a fixed-frequency voltage-mode synchronous buck converter architecture using the integrated TPS54972 IC, which embeds high- and low-side MOSFETs with low R_DS(on) to minimize conduction loss. Its external compensation network (R1–R3, C1–C3) allows loop tuning for varied output filter configurations, while the V(DDQ)-tracking interface supports dynamic voltage scaling aligned with DDR memory reference rails.

Designed for engineering development only, the board operates within strict input (3.0–4.0 V) and thermal limits (case temperature ≤55°C), with measured load transient response of 75 µs recovery time and ±35 mV_PK deviation for 2.25 A ↔ 6.75 A steps at 40 µs slew rate-validating stability under fast digital load transitions typical in high-speed memory subsystems.

Key Specifications

Availability

TPS54972EVM-222 is available at Aetrix Electronics and suitable for DDR memory termination, FPGA core supply validation, high-current point-of-load prototyping, and power integrity testing requiring stable component supply and documented test data.

Supply support for TPS54972EVM-222 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

Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and power management technologies, with decades of leadership in power conversion ICs and evaluation platforms.

The TPS54972EVM-222 belongs to TI's TPS54x72EVM-222 family, engineered to showcase high-density, high-efficiency synchronous buck regulation for DDR memory subsystems and low-voltage logic supplies.

FAQ

What is the primary function of the TPS54972EVM-222?

The TPS54972EVM-222 is an evaluation module built around the TPS54972 synchronous buck regulator, specifically configured to validate high-current, low-voltage DC/DC conversion for DDR memory termination (VTT) and FPGA core supplies. It demonstrates real-world performance including ±9 A bidirectional current capability, 700 kHz switching, and tracking functionality tied to a V(DDQ) reference input. The TPS54972EVM-222 is not a production-ready component but a development tool for power system characterization.

What input and output voltage ranges does the TPS54972EVM-222 support?

The TPS54972EVM-222 is validated for 3.0 V to 4.0 V input voltage and delivers a user-adjustable output from 0.42 V to 1.75 V, with 1.25 V as the default setpoint per the performance summary. This range aligns with DDR2/DDR3 VTT and core rail requirements. Operation outside the specified 3.0–4.0 V input window risks instability or irreversible damage, as explicitly warned in the EVM User's Guide.

Can the TPS54972EVM-222 be used for production applications?

No-the TPS54972EVM-222 is intended exclusively for engineering development and evaluation purposes, as stated in TI's EVM IMPORTANT NOTICE. It lacks full safety certifications (e.g., UL, CE), may not meet EMC directives, and omits production-grade protections such as overtemperature shutdown redundancy or agency-rated isolation. TI disclaims fitness for commercial use, and Aetrix Electronics supplies the TPS54972EVM-222 strictly as a design aid-not a drop-in production solution.

How is output voltage adjusted on the TPS54972EVM-222?

Output voltage on the TPS54972EVM-222 is primarily set by the V(DDQ) tracking input, scaled via resistor divider R6/R7 to produce a 0.46–1.75 V range. For voltages above 1.75 V, users must modify the feedback network: replace R6 with 30.1 kΩ and add R9 (10 kΩ) to scale the V(TTQ) reference. The minimum output is constrained by the TPS54972's 200 ns minimum on-time; the TPS54972EVM-222 schematic and bill of materials document all configurable nodes.

What thermal considerations apply to the TPS54972EVM-222 during operation?

During normal operation, certain components-including the TPS54972 IC in its PWP package-can exceed 55°C case temperature, with junction temperatures reaching ~60°C at 3.3 V/6 A. The TPS54972EVM-222 User's Guide warns that thermal management is the user's responsibility: adequate airflow, PCB copper area, and avoidance of prolonged full-load operation are essential. No onboard thermal protection circuitry is implemented, and TI explicitly excludes liability for thermal misuse.