Texas Instruments TPS543620EVM

Overview

TPS543620EVM from Texas Instruments is a dual-channel evaluation module for the TPS543620 synchronous buck converter, supporting input voltage range of 4 V to 18 V and delivering up to 6 A per channel. It implements two independent reference designs: U1 optimized for minimal PCB area (<100 mm²), and U2 optimized for peak efficiency (up to 92.4% at 5 V_IN/2 A), both validated with fixed-frequency advanced current-mode control and external synchronization capability.

For engineers reviewing the TPS543620EVM datasheet, TPS543620EVM pinout, TPS543620EVM application, or TPS543620EVM equivalent, this page provides verified test setup guidance, jumper-configurable switching frequency (750–2200 kHz), MODE-selectable current limit and soft-start, FSEL-adjustable f_SW, and measured thermal performance (40.4°C case temp at 12 V/6 A).

Technical Context

The TPS543620EVM integrates two independent TPS543620 ICs - U1 (small-area design) and U2 (high-efficiency design) - each featuring integrated high-side and low-side MOSFETs, fixed-frequency advanced current-mode control, and support for external clock synchronization via the FSEL pin. Both channels provide enable (EN), power-good (PG), and adjustable UVLO functionality.

U1 uses internal UVLO (start: 3.95 V, stop: 3.8 V) and fixed 1500-kHz switching frequency; U2 supports externally adjustable UVLO via R14/R17, jumper-selectable f_SW (750–2200 kHz), and MODE-configurable ramp compensation (1–4 pF) and current limit (high/low), enabling loop stability optimization across load and input conditions.

Key Specifications

Availability

TPS543620EVM is available at Aetrix Electronics and suitable for power architecture validation, DC/DC topology benchmarking, and multi-rail supply design requiring stable component supply, rapid prototyping turnaround, and production-ready reference layouts.

Supply support for TPS543620EVM 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.

The TPS543620EVM belongs to TI's SWIFT™ evaluation platform family, designed specifically to accelerate development of compact, high-efficiency synchronous buck regulators for industrial, telecom, and computing applications.

FAQ

What is the purpose of the TPS543620EVM?

The TPS543620EVM is a dual-channel evaluation module for the TPS543620 synchronous buck converter. It provides two independently configurable reference designs - U1 for minimal PCB footprint (<100 mm²) and U2 for peak efficiency (92.4%). Engineers use the TPS543620EVM to validate performance, test layout best practices, evaluate thermal behavior, and configure parameters like output voltage, switching frequency, and current limit before final design-in.

How do I configure the output voltage on the TPS543620EVM?

On the TPS543620EVM, output voltage is configured differently per channel: U1 uses fixed resistor divider R7/R8 (R8 = 1.00 kΩ); changing R7 sets V_OUT above 0.5 V. U2 uses jumper J14 to select from five preset outputs (0.803 V to 1.803 V) - default is 1.003 V (pins 1–2 shorted). For non-standard voltages, modify R21 (for <0.8 V) or R23–R26 (for >0.8 V), using TI's published equations for FB divider calculation.

Can the TPS543620EVM be synchronized to an external clock?

Yes, the TPS543620EVM supports external clock synchronization via the FSEL pin on both U1 and U2. The TPS543620 ICs implement fixed-frequency advanced current-mode control with sync capability. Figures 3-24 and 3-25 in the User's Guide confirm synchronized operation of U1 and U2 to an external clock source, enabling phase alignment and EMI reduction in multi-rail systems.

What are the key differences between the U1 and U2 sections of the TPS543620EVM?

U1 is optimized for minimal board area (<100 mm²) with fixed 1500-kHz f_SW, internal UVLO (3.95 V start), and no jumpers for configuration. U2 prioritizes efficiency (92.4% peak), offers jumper-based configurability (J14 for V_OUT, J17 for f_SW, J18 for MODE), supports adjustable UVLO via resistors R14/R17, and delivers lower output ripple (6 mV_PP vs. 9 mV_PP) and cooler thermal performance (40.4°C vs. 45.9°C at 12 V/6 A).

Does the TPS543620EVM include thermal performance data?

Yes, the TPS543620EVM User's Guide includes measured thermal data: U2 reaches 40.4°C case temperature and U1 reaches 45.9°C under 12 V input, 6-A load, and 15-minute thermal soak at room ambient (20–25°C). Figures 3-39 through 3-42 show thermal imaging results for individual and simultaneous channel operation, validating heatsinking effectiveness and safe continuous-duty operation without forced airflow.