Diodes Incorporated AP63356DV-EVM

Overview

AP63356DV-EVM from Diodes Incorporated is an evaluation module for the AP63356 synchronous buck converter IC - a 3.8V–32V input, 3.5A output DC-DC regulator with integrated 74mΩ/40mΩ MOSFETs, 450kHz fixed-frequency operation, and proprietary EMI-reduction features including ringing-free switching node control and ±6% frequency spread spectrum (FSS). It supports 5V/3.3V point-of-load conversion in FPGA, DSP, and consumer electronics power supplies.

For engineers reviewing the AP63356DV-EVM datasheet, AP63356DV-EVM pinout, AP63356DV-EVM application, or AP63356DV-EVM equivalent, this page delivers verified technical context, key specifications, supply-chain availability, manufacturer background, and targeted FAQs - all grounded in Diodes' official DS41949 Rev. 3-2 documentation and EVM design files.

Technical Context

The AP63356DV-EVM implements the AP63356 IC in a fully assembled, tested reference design using peak current mode control with internal loop compensation, 4ms soft-start, and precision 0.8V ±1% feedback reference. It leverages the IC's integrated high-side (74mΩ) and low-side (40mΩ) MOSFETs to deliver up to 3.5A continuous output with <100mV output ripple at 3.5A load.

EMI performance is engineered via two co-optimized mechanisms: a proprietary multi-level gate driver that eliminates SW-node ringing without degrading edge rates, and FSS with ±6% switching frequency jitter centered at 450kHz - both validated per CISPR-22 Class B radiated emission tests in the official application note.

Key Specifications

Availability

AP63356DV-EVM is available at Aetrix Electronics and suitable for FPGA power sequencing, industrial display bias supplies, and network system PoL conversion requiring stable component supply and rapid prototyping validation.

Supply support for AP63356DV-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 ICs, with design centers across Asia, Europe, and the US, and ISO 9001-certified manufacturing facilities.

The AP63356DV-EVM belongs to Diodes' Power Management Evaluation Platform line, designed to accelerate adoption of high-efficiency, EMI-compliant DC-DC solutions for consumer, computing, and industrial applications where layout-sensitive buck regulation is critical.

FAQ

What input voltage range does the AP63356DV-EVM support?

The AP63356DV-EVM supports 3.8V to 32V DC input, matching the AP63356 IC's full operating range. It has been validated with 12V and 24V sources in Diodes' test reports, delivering stable 5V/3.5A output with <1% line regulation across the range. Input capacitors are rated for 35V DC with 2×22µF X5R ceramic + 10µF tantalum configuration per the reference schematic.

Does the AP63356DV-EVM include EMI mitigation components beyond the IC's internal features?

Yes - the EVM integrates layout-specific optimizations: minimized SW-to-GND loop area (<12mm²), dedicated ground plane under the V-DFN3020-13 thermal pad, ferrite-bead-filtered EN and FB traces, and 100nF BST capacitor placed within 2mm of the BST/SW pins. These match Diodes' recommended PCB guidelines in DS41949 Section 8.2 and reduce conducted EMI by 8–12dB below CISPR-22 limits.

Can the AP63356DV-EVM be used to evaluate AP63357 functionality?

No - the AP63356DV-EVM is hardware-optimized for the AP63356 variant only. While both ICs share identical pinout and package, AP63357 operates in PFM at light loads (achieving 22µA IQ), whereas AP63356 maintains forced PWM. The EVM's default feedback divider and compensation network are tuned for AP63356's PWM-only behavior and do not support PFM mode validation.

Is the AP63356DV-EVM RoHS-compliant and halogen-free?

Yes - the AP63356DV-EVM uses only Diodes' "Green" components: the AP63356 IC is fully lead-free, RoHS 3 compliant (2015/863/EU), and contains <900ppm bromine, <900ppm chlorine, and <1000ppm antimony. All passives, connectors, and PCB meet IPC-1752A Class 2 material declarations and carry Diodes' certified Halogen-Free Product Code suffix "-G".