Texas Instruments LM63460EVM-2MHZ

Overview

LM63460EVM-2MHZ from Texas Instruments is an evaluation module designed to characterize the LM63460-Q1 6-A synchronous buck converter in automotive applications. It delivers a regulated 5-V output at up to 6 A across a 3-V to 36-V input range, features 2.1-MHz default switching frequency, CISPR 25 Class 5 EMI compliance, and supports enable, synchronization, and power-good monitoring via an 8-pin test header.

For engineers reviewing the LM63460EVM-2MHZ datasheet, LM63460EVM-2MHZ test setup, LM63460EVM-2MHZ efficiency curves, or LM63460EVM-2MHZ thermal performance, this EVM provides fully assembled, production-ready hardware with validated PCB layout, input/output sense terminals, and configurable bias/sync/EN/PGOOD interfaces for rapid power stage validation.

Technical Context

The LM63460EVM-2MHZ implements a peak current-mode controlled buck topology using the LM63460-Q1 IC in a 22-pin Enhanced HotRod™ QFN (3.5 mm × 4 mm). It integrates all critical passive components-including input π-stage EMI filter, symmetrical capacitor layout, and integrated bootstrap/VCC capacitors-to minimize radiated emissions and optimize thermal dissipation.

Key operational features include pseudo-random spread spectrum modulation (PRSS), FPWM mode for constant-frequency operation, resistor-programmable UVLO thresholds (4.5 V turn-on, 3.2 V turn-off), and built-in protection including overcurrent (8.5-A OCP), thermal shutdown with hysteresis, and open-drain PGOOD with 100-kΩ pullup to VOUT.

Key Specifications

Availability

LM63460EVM-2MHZ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS domain controllers, body electronics, and inverting buck-boost reference designs requiring stable component supply, fast turnaround, and production-grade validation data.

Supply support for LM63460EVM-2MHZ 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, specializing in analog, embedded processing, and power management technologies for automotive, industrial, and communications markets.

The LM63460EVM-2MHZ belongs to TI's automotive-grade synchronous buck converter evaluation platform family, engineered to accelerate qualification of high-efficiency, low-EMI DC/DC solutions for harsh automotive environments.

FAQ

What is the primary function of the LM63460EVM-2MHZ?

The LM63460EVM-2MHZ is an evaluation module used to validate the electrical performance, thermal behavior, and EMI characteristics of the LM63460-Q1 6-A synchronous buck converter. It provides a fully assembled, tested, and documented reference design with accessible test points for efficiency, regulation, transient response, and bode plot measurements-enabling rapid prototyping and compliance verification before custom PCB design.

Does the LM63460EVM-2MHZ support external clock synchronization?

Yes, the LM63460EVM-2MHZ supports external clock synchronization via the SYNC test point (J3 pin 3), which connects directly to the EN/SYNC pin of the LM63460-Q1 IC. This allows precise frequency alignment with system clocks across 200 kHz to 2.2 MHz, enabling deterministic EMI reduction and multi-rail timing coordination in complex automotive ECUs.

What output voltage and current does the LM63460EVM-2MHZ deliver by default?

The LM63460EVM-2MHZ delivers a fixed 5-V output at up to 6 A continuous load, with output voltage tolerance of ±1% (4.95 V to 5.05 V) under full-load conditions. The 6-A rating is validated across the full 3-V to 36-V input range, and thermal performance is characterized up to 150°C junction temperature with 200 LFM airflow.

How does the LM63460EVM-2MHZ assist in EMI compliance testing?

The LM63460EVM-2MHZ incorporates multiple EMI mitigation techniques verified against CISPR 25 Class 5: input π-stage filtering with parallel damping, symmetrical input/output capacitor placement, PRSS modulation, FPWM mode, and integrated bootstrap/VCC capacitors. Its pre-validated layout and published radiated/conducted emission plots allow engineers to benchmark their own designs and reduce pre-compliance test cycles.

Can the LM63460EVM-2MHZ be used for inverting buck-boost (IBB) applications?

Yes-the LM63460EVM-2MHZ supports inverting buck-boost configurations when reconfigured per TI application notes. Though shipped as a 5-V buck converter, its LM63460-Q1 controller supports negative-output topologies via external component changes and layout adaptation, making it suitable for IBB circuits requiring regulated negative rails in automotive infotainment and sensor modules.