Texas Instruments LMZ10500SILEVM

Overview

LMZ10500SILEVM from Texas Instruments is an evaluation board for the LMZ10500 650-mA nano module DC/DC step-down power converter. It implements a fixed 2-MHz PWM synchronous buck topology with integrated inductor, supports 2.7–5.5-V input and 0.6–3.6-V adjustable output, and delivers up to 650 mA in space-constrained point-of-load applications such as FPGA core rails and industrial sensors.

For engineers reviewing the LMZ10500SILEVM datasheet, LMZ10500SILEVM pinout, LMZ10500SILEVM application, or LMZ10500SILEVM equivalent, this page provides verified layout guidance, radiated/conducted EMI performance data (EN 55022 Class B compliant), thermal derating curves, startup transient waveforms, and WEBENCH® Power Designer integration support.

Technical Context

The LMZ10500SILEVM evaluates the LMZ10500's fixed-frequency current-mode synchronous buck operation with internal PFET/NFET switches, integrated compensation, and VCON-based output voltage control (VOUT = 2.5 × VCON). It validates soft-start sequencing, hiccup-mode short-circuit protection, and thermal shutdown at 150°C junction temperature.

Tested configurations include CIN = COUT = 10 µF (0603 X5R), 470-pF VCON filter capacitor, and resistive divider from 2.35-V VREF to set output voltage. Radiated EMI measurements confirm compliance with EN 55022 Class B limits up to 1 GHz using the default evaluation board layout.

Key Specifications

Availability

LMZ10500SILEVM is available at Aetrix Electronics and suitable for FPGA power delivery, industrial sensor node design, and embedded microcontroller core supply applications requiring stable component supply and fast evaluation turnaround.

Supply support for LMZ10500SILEVM 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 LMZ10500SILEVM belongs to TI's Nano Module family - purpose-built to simplify high-efficiency, space-constrained DC/DC conversion with minimal external components and validated EMI performance.

FAQ

What is the primary function of the LMZ10500SILEVM?

The LMZ10500SILEVM is an evaluation board designed to demonstrate and validate the performance of the LMZ10500 650-mA nano module DC/DC converter. It provides a fully assembled, tested reference layout with optimized component placement, thermal vias, and EMI-compliant routing to accelerate design-in of the LMZ10500 in real-world applications such as FPGA core supplies and industrial IoT nodes.

Does the LMZ10500SILEVM support adjustable output voltage?

Yes, the LMZ10500SILEVM supports adjustable output voltage from 0.6 V to 3.6 V by modifying the resistor divider network connected between the VREF (2.35 V) and VCON pins. The LMZ10500SILEVM ships with default components configured for 1.8 V output, but users can reconfigure it per the LMZ10500 datasheet equations - VOUT = 2.5 × VCON - enabling rapid prototyping of multiple rail voltages without redesigning the PCB.

What EMI compliance data is validated on the LMZ10500SILEVM?

The LMZ10500SILEVM has been measured to meet EN 55022 Class B radiated emissions limits up to 1 GHz using its default layout and component bill of materials. Conducted EMI testing also confirms compliance when a 2.2-µH / 1-µF LC input filter is added. These results are documented in the LMZ10500 datasheet Figure 6-7 and Figure 6-8, providing designers with pre-validated EMI mitigation strategies for time-sensitive projects.

How does the LMZ10500SILEVM demonstrate thermal performance?

The LMZ10500SILEVM enables direct thermal measurement of the LMZ10500 under load using its exposed center pad (tied to SGND) and standard 2-layer 20-mm × 20-mm test board. Thermal derating curves in the LMZ10500 datasheet (Figures 6-3 through 6-6) were generated using this evaluation platform, showing maximum output current versus ambient temperature for VOUT = 1.2 V to 3.3 V with θJA = 77°C/W - critical for fanless industrial deployments.

Can the LMZ10500SILEVM be used with WEBENCH® Power Designer?

Yes, the LMZ10500SILEVM is fully supported in TI's WEBENCH® Power Designer tool. Users can import the LMZ10500 part number, configure input/output parameters, simulate efficiency and thermal behavior, generate BOMs, and export validated schematic and layout files compatible with the physical LMZ10500SILEVM board - streamlining the transition from simulation to hardware validation for the LMZ10500SILEVM and derivative designs.