Diodes Incorporated AP62200Z6-EVM

Overview

AP62200Z6-EVM from Diodes Incorporated is an evaluation board for the AP62200 2A synchronous buck converter, supporting 4.2V–18V input and delivering up to 5.0V/2A output with COT control, 740kHz switching, and 135µA quiescent current. It integrates 90mΩ/65mΩ MOSFETs in SOT563 and targets EMI-sensitive consumer power rails.

For engineers reviewing the AP62200Z6-EVM datasheet, AP62200Z6-EVM pinout, AP62200Z6-EVM application, or AP62200Z6-EVM equivalent, this board enables rapid validation of transient response, efficiency, ripple, and layout-dependent EMI performance under real load conditions with minimal external components.

Technical Context

The AP62200Z6-EVM implements the AP62200 IC in a fixed 5.0V output configuration using R1=115kΩ and R2=22.1kΩ feedback network, 4.7µH shielded inductor (Wurth 744779747), and three X5R ceramic capacitors (10µF + 2×22µF) for input/output filtering. It uses Constant On-Time (COT) control to achieve fast load-step response without external compensation.

Designed for EMI reduction, the board incorporates optimized PCB layout with minimized high-di/dt loop area, dedicated ground planes, and proprietary gate drive timing to suppress switch-node ringing-critical for meeting CISPR-32 Class B radiated emissions in flat-panel TV and set-top box applications.

Key Specifications

Availability

AP62200Z6-EVM is available at Aetrix Electronics and suitable for flat-panel TV power supplies, set-top box DC/DC conversion, and consumer electronics embedded power validation requiring stable component supply and repeatable test conditions.

Supply support for AP62200Z6-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 manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for high-volume consumer and industrial markets.

The AP62200 product line delivers highly integrated, EMI-optimized buck converters targeting space-constrained, low-noise applications in displays, networking, and home entertainment systems.

FAQ

What output voltage does the AP62200Z6-EVM deliver, and is it adjustable?

The AP62200Z6-EVM is configured for a fixed 5.0V ±1% output using a 115kΩ/22.1kΩ resistor divider. While the underlying AP62200 IC supports 0.8V–7V via external resistors, this evaluation board's layout and BOM are optimized for 5V operation only and require component changes to adjust voltage.

Does the AP62200Z6-EVM include input/output capacitors and inductor?

Yes-the board includes all critical passive components: one 10µF input capacitor (Murata GRM32DR61E106KA12L), two 22µF output capacitors (AVX 12103D226KAT2A), and a 4.7µH shielded inductor (Wurth 744779747) rated for 6.2A DC current and 19.5mΩ DCR.

How is EMI performance enhanced on this evaluation board?

The AP62200Z6-EVM uses a 2-layer PCB with dedicated ground planes, minimized high-frequency switching loop area, and optimized placement of the SW node and bootstrap capacitor. Its layout leverages the AP62200's internal gate driver scheme to reduce switch-node ringing-key to achieving CISPR-32 Class B compliance.

Can the AP62200Z6-EVM be used for efficiency measurements?

Yes-its test points (VIN, VOUT, GND, SW) allow direct connection of multimeters and oscilloscopes. For efficiency testing, place an ammeter in series with the input supply and use an electronic load on VOUT; the board's low-ESR ceramics and low-DCR inductor ensure accurate measurement across 0.1A–2A loads.