Texas Instruments TPS5430EVM-136

Overview

TPS5430EVM-136 from Texas Instruments is an evaluation module designed to demonstrate and accelerate development of the TPS5430 3A, 5.5V–36V input synchronous step-down DC/DC converter in an 8-pin HSOIC PowerPAD™ package. It delivers up to 3A continuous output current at adjustable voltages down to 1.22V with 1.5% initial reference accuracy, fixed 500kHz switching frequency, and integrated 100mΩ high-side MOSFET - enabling compact, high-efficiency power supplies for 12V/24V distributed systems.

For engineers reviewing the TPS5430EVM-136 datasheet, TPS5430EVM-136 board layout, TPS5430EVM-136 test setup, or TPS5430EVM-136 design files, this module provides validated thermal performance, pre-characterized efficiency curves (e.g., >90% at 2A/5V from 12V input), WEBENCH®-compatible reference design files, and full schematic/layout documentation to de-risk prototype iteration and production-ready power stage validation.

Technical Context

The TPS5430EVM-136 implements a voltage-mode PWM buck regulator architecture with internal compensation, input voltage feed-forward for improved line regulation, and cycle-by-cycle overcurrent protection. It supports 5.5V–36V input operation and delivers regulated output from 1.22V to 36V via external resistor divider, with thermal shutdown activation at 135°C and hiccup-mode fault recovery.

Key functional blocks include a 500kHz oscillator, 1.221V precision bandgap reference trimmed to ±1.5% at 25°C, active-high ENA control with 1.3V turn-on threshold, and integrated bootstrap diode for gate drive - all implemented on the TPS5430 IC mounted on a thermally optimized 2-layer PCB with exposed DAP soldering and low-ESR ceramic input/output capacitors.

Key Specifications

Availability

TPS5430EVM-136 is available at Aetrix Electronics and suitable for power supply prototyping, DC/DC converter validation, and industrial embedded system development requiring stable component supply, fast-turn evaluation hardware, and TI-validated reference designs.

Supply support for TPS5430EVM-136 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 ICs and evaluation platforms for rapid system design.

The TPS5430EVM-136 belongs to TI's Power Management Evaluation Modules product line, engineered specifically to accelerate adoption of the TPS543x family of high-current, wide-input synchronous buck converters in industrial, consumer, and automotive power applications.

FAQ

What is the primary function of the TPS5430EVM-136?

The TPS5430EVM-136 is an evaluation module that demonstrates the operation and performance of the TPS5430 synchronous step-down converter. It provides a fully assembled, tested PCB with input/output filtering, feedback network, thermal management, and test points - allowing engineers to validate voltage regulation, efficiency, transient response, and thermal behavior before committing to custom design. The TPS5430EVM-136 is not a standalone IC but a hardware platform built around the TPS5430 IC.

Does the TPS5430EVM-136 support adjustable output voltage?

Yes, the TPS5430EVM-136 supports adjustable output voltage from 1.22V to 36V using an external resistor divider connected to the VSENSE pin. The default configuration delivers 5V, but R1 and R2 can be modified per the TPS5430 datasheet equations to set other output levels. This adjustability is enabled by the TPS5430's internal 1.221V reference and voltage-mode control architecture - both implemented and verified on the TPS5430EVM-136 board.

What input voltage range does the TPS5430EVM-136 support?

The TPS5430EVM-136 supports an input voltage range of 5.5V to 36V, matching the operational limits of the underlying TPS5430 IC. This range accommodates common industrial and automotive power rails, including nominal 12V and 24V systems. Input undervoltage lockout activates below ~5.3V, and absolute maximum rating is 40V - verified on the TPS5430EVM-136 through TI's published test data and layout guidelines.

How is thermal performance managed on the TPS5430EVM-136?

Thermal performance on the TPS5430EVM-136 is managed via direct soldering of the TPS5430's exposed PowerPAD™ (DAP) to a large copper area on the PCB, providing low thermal resistance (R_θJB = 15°C/W). The board uses 2-layer construction with internal ground planes and optimized trace routing to dissipate heat from the 100mΩ high-side MOSFET. Measured junction temperature remains within –40°C to 125°C limits at 3A load with 20LFM airflow - as documented in the TPS5430EVM-136 User's Guide.

Can the TPS5430EVM-136 be used with WEBENCH® Power Designer?

Yes, the TPS5430EVM-136 is fully supported by TI's WEBENCH® Power Designer tool. Users can import the TPS5430 part number to generate custom schematics, simulate efficiency and thermal performance, select optimized external components (inductor, capacitors, resistors), and export design files compatible with the TPS5430EVM-136 layout. WEBENCH® leverages the exact electrical and thermal characteristics of the TPS5430 IC used on the TPS5430EVM-136, ensuring correlation between simulation and hardware results.