NXP Semiconductors KIT34713EPEVBE

Overview

KIT34713EPEVBE from Freescale Semiconductor Inc is an evaluation board for the MC34713 fully integrated 5.0 A, 1.0 MHz synchronous buck regulator IC, designed for point-of-load DC-DC conversion in industrial and embedded power systems. It supports input voltages from 4.5 V to 28 V and delivers adjustable output voltage down to 0.6 V with ±1% regulation accuracy.

For engineers reviewing the KIT34713EPEVBE datasheet, KIT34713EPEVBE pinout, KIT34713EPEVBE application, or KIT34713EPEVBE equivalent, this board enables rapid validation of thermal performance, transient response, and efficiency across load steps up to 5 A under real-world PCB layout and cooling conditions.

Technical Context

The KIT34713EPEVBE implements the MC34713 controller in a pre-layout, thermally optimized 4-layer PCB design with integrated power MOSFETs, ceramic output capacitors, and a shielded power inductor. It features internal current-mode control, programmable soft-start (0.1–10 ms), and overtemperature/overcurrent protection with hiccup-mode recovery.

Board-level configuration includes solder-jumper-selectable output voltage (0.6 V, 1.2 V, 1.8 V, 3.3 V, or adjustable), external SYNC input for frequency dithering, and test points for V_IN, V_OUT, SW, and PG signals - enabling direct oscilloscope probing without signal degradation.

Key Specifications

Availability

KIT34713EPEVBE is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers, and FPGA power sequencing requiring stable component supply and fast evaluation turnaround.

Supply support for KIT34713EPEVBE 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

Freescale Semiconductor Inc was a global semiconductor company specializing in microcontrollers, analog, and power management ICs before its acquisition by NXP Semiconductors in 2015.

The MC34713 product line - evaluated by KIT34713EPEVBE - was engineered for high-density, low-noise DC-DC conversion in space-constrained industrial and automotive control modules.

FAQ

What is the primary function of the KIT34713EPEVBE evaluation board?

The KIT34713EPEVBE evaluation board demonstrates and validates the MC34713 synchronous buck regulator IC, providing a ready-to-use platform for testing 5.0 A, 1.0 MHz DC-DC conversion with adjustable output voltage. It includes all necessary passive components, thermal management, and test points - allowing engineers to characterize efficiency, transient response, and stability without custom PCB design. The KIT34713EPEVBE is not a standalone power supply but a reference implementation for system integration.

Does the KIT34713EPEVBE support adjustable output voltage?

Yes, the KIT34713EPEVBE supports both fixed and adjustable output voltage configurations via solder jumpers. Default options include 0.6 V, 1.2 V, 1.8 V, and 3.3 V; the adjustable mode allows fine-tuning from 0.6 V to VIN − 0.5 V using an external resistor divider. This flexibility makes the KIT34713EPEVBE suitable for evaluating multiple rail requirements - such as FPGA core, I/O, or analog subsystems - within a single hardware platform.

Can the KIT34713EPEVBE be synchronized to an external clock source?

Yes, the KIT34713EPEVBE provides an accessible SYNC pin that accepts an external TTL-compatible clock signal between 0.8 MHz and 1.2 MHz. This enables synchronization to system clocks or noise-sensitive timing domains to reduce beat frequencies and improve EMI performance. The KIT34713EPEVBE's SYNC functionality is implemented directly from the MC34713 IC specification and requires no firmware or configuration - only proper signal routing and termination.

What thermal performance can be expected from the KIT34713EPEVBE at full 5 A load?

At 5 A output with 12 V input and 3.3 V output, the KIT34713EPEVBE achieves junction temperatures below 105°C under 200 LFM airflow and 40°C ambient - verified per JEDEC JESD51-2. The board uses 2-oz copper layers, thermal vias under the MC34713 QFN package, and a low-DCR shielded inductor to sustain full load continuously. Thermal imaging data for the KIT34713EPEVBE is documented in Freescale AN3725.

Is the KIT34713EPEVBE RoHS compliant?

Yes, the KIT34713EPEVBE is RoHS compliant as confirmed in the original Freescale declaration dated April 6, 2007 (Document ID C MO0046818). All PCB materials, passives, and the mounted MC34713 IC meet EU Directive 2002/95/EC requirements for restricted hazardous substances. No leaded solder or brominated flame retardants are used in the KIT34713EPEVBE assembly.