Diodes Incorporated AP66200QFVBW-EVM

Overview

AP66200QFVBW-EVM from Diodes Incorporated is an automotive-grade evaluation module for the AP66200Q 3.8V–60V input, 2A synchronous buck converter featuring integrated 185mΩ high-side and 80mΩ low-side MOSFETs, 500kHz default switching frequency, 0.8V feedback reference, and AEC-Q100 Grade 1 qualification (−40°C to +125°C). It enables rapid validation of point-of-load power delivery in infotainment systems and distributed automotive DC/DC architectures.

For engineers reviewing the AP66200QFVBW-EVM datasheet, AP66200QFVBW-EVM pinout, AP66200QFVBW-EVM application, or AP66200QFVBW-EVM equivalent, this module supports configurable frequency (300kHz–2.5MHz), PFM/PWM mode selection, external soft-start/tracking, bias-supplied VCC optimization, and power-good monitoring - critical for automotive power sequencing and thermal-limited board designs.

Technical Context

The AP66200QFVBW-EVM implements a current-mode control architecture with internal loop compensation, enabling stable regulation across wide VIN (3.8V–60V) and VOUT (0.8V–50V) ranges while supporting pre-biased startup and soft discharge. Its functional block includes zero-crossing detection, hiccup-mode overcurrent protection, and dual-threshold thermal shutdown (165°C trip, 20°C hysteresis).

It interfaces directly with the AP66200Q's 16-pin U-QFN4040-16/SWP package, exposing all control pins (EN, FS, MSYNC, SS/TR, PG, FB, BIAS) and power terminals (VIN, SW, PGND, GND, BST, VCC) for real-time waveform capture and parametric validation under load transients up to 2A and ambient temperatures from −40°C to +125°C.

Key Specifications

Availability

AP66200QFVBW-EVM is available at Aetrix Electronics and suitable for automotive infotainment systems, FPGA/DSP power supplies, and distributed telecom power architectures requiring stable component supply, full AEC-Q100 validation support, and production-ready reference design data.

Supply support for AP66200QFVBW-EVM 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

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, computing, and consumer markets, with IATF 16949-certified manufacturing.

The AP66200Q product line delivers high-voltage, low-I_Q synchronous buck converters optimized for automotive Grade 1 environments - targeting infotainment, ADAS domain controllers, and body electronics where input voltage resilience and thermal robustness are mandatory.

FAQ

What is the primary purpose of the AP66200QFVBW-EVM?

The AP66200QFVBW-EVM is a fully assembled evaluation board designed to accelerate development and validation of the AP66200Q 2A synchronous buck converter. It provides access to all control and power pins, includes recommended input/output filtering, thermal vias for the exposed pad, and supports configuration of switching frequency, PFM/PWM mode, soft-start timing, and output tracking - enabling immediate bench testing without custom PCB design.

Does the AP66200QFVBW-EVM support automotive temperature requirements?

Yes - the evaluation module is built to validate the AP66200Q's AEC-Q100 Grade 1 performance (−40°C to +125°C ambient). Its layout follows Diodes' recommended thermal pad grounding and copper pour guidelines, and it has been characterized for stable operation across the full temperature range using the AP66200Q's internal thermal shutdown (165°C) and hysteresis (20°C), ensuring representative behavior in automotive thermal environments.

Can the AP66200QFVBW-EVM be used for output voltage sequencing?

Yes - the board exposes the SS/TR pin and supports ratiometric, sequential, or absolute tracking configurations via external capacitor or resistor networks. When paired with multiple AP66200Q-based rails, the SS/TR pin allows synchronized ramp-up/down of outputs, and the open-drain PG signal provides system-level power-good handshaking - essential for FPGA, processor, or multi-rail SoC power sequencing in automotive ECUs.

What are the key differences between AP66200QFVBW-EVM and a production AP66200Q IC?

The AP66200QFVBW-EVM is not a replacement IC but a test platform: it hosts the AP66200Q in its final U-QFN4040-16/SWP package, includes all necessary passive components (input/output capacitors, bootstrap cap, feedback resistors), and provides test points for SW, PG, EN, and FB signals. Unlike the bare IC, the EVM enables immediate functional verification, efficiency measurement, transient response analysis, and thermal profiling - reducing time-to-validation by eliminating prototype iteration.