Texas Instruments TPS61254EVM-711

Overview

TPS61254EVM-711 from Texas Instruments is an evaluation module designed to test and validate the TPS61254 4.5-V output, 3.5-MHz synchronous boost converter for single-cell Li-ion/Li-polymer or multi-cell alkaline/NiMH battery-powered systems. It supports input voltages from 2.3 V to 5.5 V, delivers up to 150 mA in bypass mode, and features 18-μA standby quiescent current. The board enables noise spectrum analysis via optional SMA connectors and supports USB host supply and audio amplifier biasing applications.

For engineers reviewing the TPS61254EVM-711 datasheet, TPS61254EVM-711 schematic, TPS61254EVM-711 layout, or TPS61254EVM-711 component placement, this EVM provides a validated hardware platform to characterize efficiency (up to 92%), 100% duty-cycle operation, selectable shutdown modes, and compact 25-mm² active converter area - critical for portable power design validation.

Technical Context

The TPS61254EVM-711 implements the TPS61254YFF BGA-packaged boost converter in a double-sided, two-active-layer PCB configuration with all components mounted on the top side. It includes dedicated input/output sense headers (J2, J5), SMA connectors for spectral analysis (J7, J8 - unpopulated by default), and jumper-selectable operating modes (JP1 for enable, JP2 for bypass vs. true load disconnect).

This EVM operates across the full 2.3–5.5-V input range and delivers a fixed 4.5-V output. Its design incorporates Murata GRM-series ceramic capacitors (C1, C2), Kemet tantalum output capacitance (C4), and Murata LQM32PN inductor (L1), enabling accurate characterization of transient response, efficiency curves, and thermal behavior under real-world load conditions.

Key Specifications

Availability

TPS61254EVM-711 is available at Aetrix Electronics and suitable for USB host supply validation, Li-ion-powered audio subsystem testing, RF-PA buffer characterization, and portable device power architecture prototyping requiring stable component supply and traceable reference hardware.

Supply support for TPS61254EVM-711 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TPS6125x product line targets ultra-compact, high-efficiency boost conversion for battery-powered portable systems - specifically engineered to replace discrete charge pumps and linear regulators in space- and power-sensitive applications.

FAQ

What is the primary function of the TPS61254EVM-711?

The TPS61254EVM-711 is an evaluation module built to characterize and validate the performance of the TPS61254YFF synchronous boost converter. It provides accessible test points, configurable jumpers (JP1, JP2), and optional SMA connectors (J7, J8) to measure input/output voltage ripple, efficiency, transient response, and noise spectra - enabling rapid verification of the TPS61254EVM-711 in real application contexts such as USB host supplies and audio amplifier biasing.

Does the TPS61254EVM-711 support both normal boost and bypass modes?

Yes, the TPS61254EVM-711 supports both operational modes via JP2 jumper configuration. With JP2 set to "High", the TPS61254EVM-711 enters bypass mode when disabled (EN = low), maintaining output at VIN with ~150 mA current capability and only 18 μA quiescent current. With JP2 set to "Low", it enters true load disconnect shutdown - fully isolating the output from input. This dual-mode flexibility is integral to the TPS61254EVM-711's utility in low-power portable system validation.

What are the key interface connectors on the TPS61254EVM-711?

The TPS61254EVM-711 includes J1 (VIN), J3 (GND), and J4 (VOUT) for primary power input/output connections; J2 and J5 for Kelvin-sense measurement of input and output voltages; and unpopulated SMA connectors J7 (output) and J8 (input) for spectrum analyzer-based noise analysis. All connectors are clearly labeled and documented in the SLVU427 User's Guide - ensuring repeatable, low-noise probing during TPS61254EVM-711 evaluation.

Can the TPS61254EVM-711 be used to evaluate the TPS61256 device?

No - the TPS61254EVM-711 is configured specifically for the TPS61254YFF (4.5-V output). While it shares the same board design as the TPS61256EVM-712 variant, the TPS61254EVM-711 ships with U1 populated as TPS61254YFF and uses component values optimized for 4.5-V regulation. Evaluating the TPS61256 requires the HPA711-002 orderable version (TPS61256YFF), per Table 1 in the SLVU427 User's Guide - making the TPS61254EVM-711 unsuitable for direct TPS61256 characterization.

What safety and compliance limitations apply to the TPS61254EVM-711?

The TPS61254EVM-711 is intended solely for engineering development and lab evaluation - not for end-product use. It lacks FCC/CE/RoHS/WEEE certification and is not compliant with electromagnetic compatibility or safety directives. Users must operate within 2.3–5.5-V input and 3.0–6.5-V output limits, avoid residential environments due to Class A emissions risk, and follow TI's Warnings and Restrictions notice - especially regarding thermal hazards (>60°C components) and electrostatic discharge precautions during TPS61254EVM-711 handling.