Texas Instruments TPS565208EVM-858

Overview

TPS565208EVM-858 from Texas Instruments is an evaluation module for the TPS565208 synchronous buck converter IC, configured to deliver 1.05 V at up to 5 A from a 4.5 V–17 V input. It implements D-CAP2™ adaptive on-time control, operates at 550 kHz, and achieves ≤10 mV_PP output voltage ripple under full load. The board supports rapid validation of power stage performance in point-of-load applications.

For engineers reviewing the TPS565208EVM-858 datasheet, TPS565208EVM-858 test setup, TPS565208EVM-858 efficiency curves, or TPS565208EVM-858 transient response, this EVM provides production-representative measurement access to load regulation (±0.5%), line regulation (±0.002 V), startup timing, and ripple behavior across 0–5 A loads.

Technical Context

The TPS565208EVM-858 implements a fixed-output 1.05 V configuration using the TPS565208DDCR IC in SOT-23-6 package, with R1 = 3.74 kΩ and R2 = 10.0 kΩ setting the feedback divider. It uses a 2.2 µH shielded drum-core inductor (Würth 744311220) and three parallel 22 µF X7R ceramic output capacitors for low-impedance filtering.

Test points TP1–TP8 provide direct access to VIN, VOUT, EN, SW node, and ground references; JP1 enables hardware-based enable/disable control; J1 and J2 are 2-pin terminal blocks rated for 5 A. Input decoupling employs two 10 µF X5R ceramics (C2, C3) and one 0.1 µF ceramic (C1), all placed adjacent to U1.

Key Specifications

Availability

TPS565208EVM-858 is available at Aetrix Electronics and suitable for DC/DC validation, power integrity testing, and reference design verification requiring stable component supply in embedded computing, FPGA power sequencing, and industrial controller development.

Supply support for TPS565208EVM-858 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TPS565208EVM-858 belongs to TI's evaluation module portfolio for DC/DC converters, designed to accelerate prototyping and performance validation of the TPS565208 synchronous buck regulator in real-world PCB environments.

FAQ

What is the purpose of the TPS565208EVM-858?

The TPS565208EVM-858 is a fully assembled evaluation module built around the TPS565208 synchronous buck converter IC. Its purpose is to enable engineers to rapidly validate key power performance metrics-including efficiency, load/line regulation, transient response, and output ripple-without designing a custom PCB. The TPS565208EVM-858 ships preconfigured for 1.05 V/5 A operation and includes accessible test points, jumper-controlled enable, and documented layout practices.

Can the output voltage of the TPS565208EVM-858 be adjusted?

Yes, the output voltage of the TPS565208EVM-858 can be adjusted by replacing resistor R1. The default 3.74 kΩ value sets 1.05 V; Equation 1 in the user's guide allows calculation of alternate R1 values for outputs from 0.760 V to 7 V. Table 3-1 lists standard resistor values for common voltages (e.g., 1.2 V, 1.5 V, 3.3 V), and the feedback network (R1/R2) maintains precision via the TPS565208's 0.760 V reference.

What are the key test points on the TPS565208EVM-858 and their functions?

The TPS565208EVM-858 provides eight labeled test points: TP1 monitors VIN, TP2/TP7/TP8 are ground references, TP3 monitors EN, TP4 accesses the switch node (SW), TP5 supports loop response measurements, and TP6 monitors VOUT. These points allow oscilloscope probing without soldering or modification, enabling accurate measurement of startup waveforms, ripple, transient behavior, and control-loop dynamics directly on the TPS565208EVM-858.

Does the TPS565208EVM-858 include overcurrent protection?

Yes, the TPS565208EVM-858 inherits the overcurrent protection feature of the underlying TPS565208 IC. The device limits output current to 6.8 A under typical conditions (VIN = 12 V, LOUT = 2.2 µH), triggering hiccup-mode shutdown to prevent damage during sustained overload or short-circuit events. This protection is implemented internally and requires no external components on the TPS565208EVM-858 board.

How is enable/disable control implemented on the TPS565208EVM-858?

Enable/disable control on the TPS565208EVM-858 is implemented via jumper JP1. Shunting pins 1–2 connects EN to GND to disable the converter; shunting pins 2–3 connects EN to VIN to enable it. This hardware-level control allows safe, repeatable startup and shutdown sequencing without requiring an external logic signal, making the TPS565208EVM-858 suitable for bench validation and teaching labs.