Texas Instruments TPS629206EVM

Overview

TPS629206EVM from Texas Instruments is a ready-to-use evaluation module for the TPS629206 600-mA synchronous buck converter, configured by default for external feedback and 3.3-V output at 12-V input. It supports forced PWM and auto PFM/PWM (with AEE) modes at 1 MHz or 2.5 MHz, delivers ≤10 mV output ripple at 600 mA, achieves up to 91.7% peak efficiency, and enables loop response measurement via on-board NT2 modification.

For engineers reviewing the TPS629206EVM datasheet, TPS629206EVM test setup, TPS629206EVM schematic, or TPS629206EVM jumper configuration, this module provides validated performance data-including line/load regulation (±0.5%/±0.7%), thermal rise (30.5°C at full load), and Bode plot measurement capability-to accelerate power stage validation and layout verification in compact DC/DC designs.

Technical Context

The TPS629206EVM implements the TPS629206 IC in a fixed 3.3-V output configuration using R1 and R2 for external feedback, with optional internal VSET mode enabled by cutting net tie NT1. It integrates a 3.3-μH shielded inductor (XGL3530-332MEC), 22-μF output capacitor (GCM21BD70J226ME36L), and configurable MODE/S-CONF jumpers (JP2) to select switching frequency, feedback source, and discharge behavior.

Test-ready interfaces include dual-point voltage sense (S+/S−) on both input (J1) and output (J2) connectors, programmable enable threshold (via R4/R5 on JP1), selectable power-good pullup (VIN or VOUT via JP4), and feedforward capacitor option (C10). Loop stability assessment is supported through NT2 cut-and-insert modification for 10-Ω injection resistor placement.

Key Specifications

Availability

TPS629206EVM is available at Aetrix Electronics and suitable for power supply validation, DC/DC topology benchmarking, and layout review requiring stable component supply, pre-characterized thermal performance, and traceable test data under real-world load transients.

Supply support for TPS629206EVM 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, with leadership in power management, signal chain, and microcontrollers.

The TPS629206EVM belongs to TI's evaluation module product line, designed specifically to de-risk adoption of the TPS629206 buck converter by providing fully assembled, tested hardware with documented test results, schematics, BOM, and PCB layout files.

FAQ

What is the default output voltage configuration of the TPS629206EVM?

The TPS629206EVM is configured by default for external feedback with an output voltage of 3.3 V set by resistors R1 (154 kΩ) and R2 (34.0 kΩ). This configuration is verified per Table 2-1 and Section 3.7 of the User's Guide. The TPS629206EVM can be reconfigured for internal VSET operation by cutting net tie NT1 on the back side of the board, which floats the FB pin and enables 3.3-V regulation without external resistors.

How do I change the TPS629206EVM to use internal feedback (VSET) mode?

To enable internal feedback (VSET) mode on the TPS629206EVM, cut net tie NT1 located on the bottom side of the board as shown in Figure 3-1. This action floats the FB pin, allowing the TPS629206EVM to regulate to its internal 3.3-V reference. Ensure JP2 is set to an internal-feedback configuration (e.g., pins 2–4 or 4–6) before enabling the device-using external feedback settings with NT1 cut may damage the TPS629206EVM.

Which jumper controls switching frequency and operating mode on the TPS629206EVM?

JP2 controls switching frequency and operating mode on the TPS629206EVM. Per Table 4-3, shorting pins 1–3 selects forced PWM at 2.5 MHz with external feedback; pins 3–5 selects auto PFM/PWM with AEE at 2.5 MHz; pins 2–4 configures forced PWM at 1 MHz with internal feedback; and pins 4–6 enables auto PFM/PWM at 1 MHz with internal feedback and output discharge enabled.

Can the TPS629206EVM measure loop response, and how is it done?

Yes, the TPS629206EVM supports loop response (Bode plot) measurement. As described in Section 3.8, users must cut net tie NT2 and install a 10-Ω 0603 resistor on the bottom side of the board (Figure 3-2). A 10-mV_PP AC signal is then injected across this resistor to assess phase margin (84.4°) and loop bandwidth (95.89 kHz), enabling stability validation without external test fixtures.

What are the input and output sensing capabilities of the TPS629206EVM?

The TPS629206EVM provides Kelvin-style voltage sensing on both input and output via dedicated S+ and S− pins on J1 (input) and J2 (output) connectors. This 4-wire sensing eliminates PCB trace IR drop errors, enabling accurate measurement of true regulator input/output voltages during efficiency, line regulation, and transient testing per Section 4.1 and Table 4-1.