Diodes Incorporated AP63200QWU-EVM

Overview

AP63200QWU-EVM from Diodes Incorporated is an evaluation board for the AP63200Q 32V, 2A synchronous buck converter featuring integrated 125mΩ high-side and 68mΩ low-side MOSFETs, 500kHz fixed switching frequency, Frequency Spread Spectrum (±6% jitter), and proprietary gate driver design optimized for EMI reduction in automotive and industrial power supplies.

For engineers reviewing the AP63200QWU-EVM datasheet, AP63200QWU-EVM pinout, AP63200QWU-EVM application, or AP63200QWU-EVM equivalent, this board enables rapid validation of output ripple, efficiency at 2A load, PFM/PWM mode transition, and EMI performance under 12V–32V input with programmable 5V/12V output configurations.

Technical Context

The AP63200QWU-EVM implements a peak current mode controlled DC-DC buck topology with internal compensation, supporting both PFM (22µA IQ) and PWM operation. It interfaces directly with the AP63200Q IC in TSOT23-6 package, providing access to VIN, VOUT, EN, SW, FB, and BST nodes via test points and jumper-selectable enable logic.

Board-level design includes dual 22µF X8L ceramic output capacitors, 10µF input capacitor, 100pF feed-forward capacitor for phase margin enhancement, and resistor-divider network (R1=30kΩ, R3=158kΩ) pre-configured for 5V output - all optimized per Diodes' recommended layout for minimal EMI radiation and thermal rise.

Key Specifications

Availability

AP63200QWU-EVM is available at Aetrix Electronics and suitable for automotive infotainment power rails, industrial PLC I/O modules, and IoT edge node DC-DC conversion requiring stable component supply and fast EMI-compliant design validation.

Supply support for AP63200QWU-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 automotive, industrial, and consumer markets.

The AP63200Q product line delivers high-efficiency, low-EMI synchronous buck converters targeting ASIL-B compatible power rails in ADAS cameras, body control modules, and smart sensors where radiated emissions compliance is critical.

FAQ

What input voltage range is supported on the AP63200QWU-EVM?

The board supports 3.8V to 32V DC input, matching the AP63200Q IC's operational range. It has been validated at 12V and 24V inputs with stable 5V/2A output. Input capacitance uses a 10µF X7R ceramic (CGA5L1X7R1H106K160AC) and 0.1µF bypass (GCM188L81H104KA57) to suppress transients and ensure startup reliability across temperature.

How do I configure the output voltage to 12V?

Replace R1 (30kΩ) with 10kΩ and R3 (158kΩ) with 191kΩ per the formula VOUT = 0.8 × (1 + R3/R1). The board includes 0603 footprints and zero-ohm jumpers for R2/R5 to support reconfiguration. Output feedback uses GCM1885G2A101JA16 (100pF) for phase margin boost with ultra-low-ESR ceramic outputs.

Does the AP63200QWU-EVM support efficiency measurement?

Yes - the board provides dedicated VIN and VOUT test points with Kelvin connections for accurate voltage sensing. Input current is measured in series with the input supply using the onboard ammeter pad; output current is applied via electronic load connected to VOUT/GND terminals. Efficiency curves are published for 12V→5V/2A operation in the datasheet Rev. 2.

Can the AP63200QWU-EVM be used for EMI pre-compliance testing?

Yes - its layout follows Diodes' EMI-optimized guidelines: minimized SW loop area, ground plane under power stages, separated analog/digital grounds, and feed-forward capacitor C4 (100pF) placement adjacent to FB pin. Radiated emissions data is provided in Figure 5–6 of the datasheet for 12V→5V operation at 50mA and 2A loads.