Texas Instruments TPS542941EVM-057

Overview

TPS542941EVM-057 from Texas Instruments is an evaluation module for the TPS542941 dual synchronous buck converter IC, designed to demonstrate and validate its operation in real-world power delivery applications. It delivers 3.3 V at up to 2 A on Channel 1 and 1.5 V at up to 3 A from a 5–18 V input, features D-CAP2™ control mode, Eco-mode™ for light-load efficiency, and supports independent enable (EN1/EN2) and power-good (PG1/PG2) monitoring.

For engineers reviewing the TPS542941EVM-057 datasheet, TPS542941EVM-057 test setup, TPS542941EVM-057 schematic, or TPS542941EVM-057 performance validation, this module provides verified reference design data-including efficiency curves, load/line regulation, transient response, and ripple measurements-for rapid prototyping of dual-rail point-of-load supplies in industrial, embedded, and communications systems.

Technical Context

The TPS542941EVM-057 implements two independent D-CAP2™-mode synchronous buck converters on a single PCB, each with integrated high-side and low-side MOSFETs, internal 700 kHz switching frequency, and adaptive on-time control optimized for ceramic output capacitors. The board uses discrete external components-2.2 µH and 1.5 µH shielded inductors, 22 µF ceramic output capacitors per channel, and precision feedback resistors-to realize stable, low-noise regulation without external compensation.

It supports full functional validation including independent channel enable/disable via jumpers (J4/J5), input/output test points (TP1–TP15), switch-node access (TP10/TP11), and analog/power ground separation with single-point connection near U1. Performance testing covers efficiency (up to 94.1% at CH1), output ripple (≤20 mV_PP), load transient response (500 mA/µs slew rate), and Eco-mode™ behavior at no load.

Key Specifications

Availability

TPS542941EVM-057 is available at Aetrix Electronics and suitable for industrial automation, embedded computing, telecom infrastructure, and FPGA power validation requiring stable component supply, documented test results, and production-ready reference design fidelity.

Supply support for TPS542941EVM-057 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 leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-performance DC/DC conversion solutions.

The TPS542941EVM-057 belongs to TI's evaluation module product line, engineered to accelerate design-in of the TPS542941 dual buck converter by providing fully tested, characterized hardware with complete schematics, layout files, and measured performance data.

FAQ

What is the primary function of the TPS542941EVM-057?

The TPS542941EVM-057 is an evaluation module that demonstrates and validates the operation of the TPS542941 dual synchronous buck converter IC. It provides two independently controllable power rails-3.3 V/2 A and 1.5 V/3 A-from a 5–18 V input, enabling engineers to verify performance metrics such as efficiency, transient response, and regulation before integrating the TPS542941 into their own designs.

Can the output voltages on the TPS542941EVM-057 be modified?

Yes, the TPS542941EVM-057 supports output voltage modification via resistor dividers R1/R3 (for CH1/CH2 feedback). Table 3-1 in the user's guide lists standard resistor values for common outputs from 1.0 V to 6.5 V. Changing R1 or R3 adjusts the regulated voltage using the formula V_OUT = 0.765 V × (1 + R_top/R_bottom), and feedforward capacitors (C20/C21) may be added for stability above 1.8 V.

Does the TPS542941EVM-057 support independent channel enable and monitoring?

Yes, the TPS542941EVM-057 provides independent enable control for each channel via jumpers J4 (EN1) and J5 (EN2), and dedicated power-good signals PG1 and PG2 accessible at test points TP13 and TP14. This allows staged startup, fault isolation, and system-level sequencing-critical for multi-rail applications like processors or FPGAs where timing and rail ordering matter.

What are the key performance validation metrics included for the TPS542941EVM-057?

The TPS542941EVM-057 user's guide includes measured data for efficiency (Figures 4-1 to 4-4), load/line regulation (Figures 4-5 to 4-8), load transient response (Figures 4-9 to 4-10), output/input voltage ripple (Figures 4-11 to 4-15), and start-up waveforms (Figures 4-16 to 4-19). All tests were conducted at 25°C with specified input ranges, output loads, and component configurations per Table 2-1.

Is the TPS542941EVM-057 compatible with other TPS542941-based designs?

Yes, the TPS542941EVM-057 uses the exact TPS542941PWP package (20-pin HTSSOP) and follows TI's recommended layout practices, including thermal pad grounding, input capacitor placement, and ground partitioning. Its schematic (Figure 6-1), bill of materials (Table 6-1), and layer drawings (Figures 5-1 to 5-6) serve as a production-ready reference for custom implementations of the TPS542941 IC.