Diodes Incorporated AP64102SP-EVM

Overview

AP64102SP-EVM from Diodes Incorporated is an evaluation module for the AP64102 1A synchronous buck converter, designed to demonstrate its 3.8V–40V input operation, integrated 150mΩ/80mΩ MOSFETs, 25µA quiescent current in PFM mode, adjustable 100kHz–2.2MHz switching frequency, and EMI-reduction features including FSS (±6% jitter) and proprietary ringing-free gate drive. It supports rapid validation in distributed power bus, home audio, and white goods applications.

For engineers reviewing the AP64102SP-EVM datasheet, AP64102SP-EVM pinout, AP64102SP-EVM application, or AP64102SP-EVM equivalent, this module enables hands-on verification of soft-start timing, EN-controlled sequencing, output voltage regulation (0.8V–VIN), load transient response (50mA ↔ 1A), and thermal performance under real-world PCB layout conditions with SO-8EP footprint compliance.

Technical Context

The AP64102SP-EVM implements peak current mode control with internal loop compensation, eliminating external compensation components. Its reference design uses a 15μH inductor, dual 10μF input capacitors, 22μF output capacitor, and 52.3kΩ/10kΩ feedback divider to deliver stable 5V/3.3V outputs at up to 1A continuous load.

It validates the AP64102's proprietary multi-level gate driver-suppressing SW node ringing without degrading rise/fall times-and demonstrates Frequency Spread Spectrum operation synchronized via RT/CLK pin, reducing both conducted and radiated EMI across automotive and industrial EMC test bands.

Key Specifications

Availability

AP64102SP-EVM is available at Aetrix Electronics and suitable for distributed power bus supplies, home audio amplifiers, and small home appliance control modules requiring stable component supply, fast design-in support, and validated EMI-compliant reference layouts.

Supply support for AP64102SP-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 manufacturer specializing in discrete, analog, and mixed-signal solutions, with ISO/TS 16949-certified facilities and AEC-Q100/101 qualified product lines.

The AP64102 belongs to Diodes' high-voltage DC-DC converter family, engineered specifically for EMI-sensitive industrial and consumer applications where wide VIN range, low IQ, and layout-independent noise suppression are mandatory.

FAQ

What input voltage range does the AP64102SP-EVM support?

The AP64102SP-EVM supports 3.8V to 40V DC input, matching the AP64102 IC's operational range. It has been validated with 12V and 24V nominal supplies, and includes input capacitance (2 × 10µF) rated for 42V DC absolute maximum per datasheet limits. No external LDO or pre-buck stage is required.

How is soft-start configured on the AP64102SP-EVM?

The AP64102SP-EVM uses a 10nF ceramic capacitor from SS to GND, yielding a 3ms soft-start time per the internal 4µA current source. This prevents output overshoot and inrush current during startup, and is directly measurable at the SS pin with an oscilloscope during EN assertion.

Can the AP64102SP-EVM be synchronized to an external clock?

Yes - the RT/CLK pin accepts 100kHz–2.2MHz external clock signals. When driven with a clean CMOS-level square wave, the AP64102's internal PLL locks to the input frequency within one cycle, enabling deterministic switching alignment across multiple rails in noise-critical systems.

Does the AP64102SP-EVM include thermal monitoring or reporting?

No - the AP64102SP-EVM does not integrate temperature sensors or telemetry. However, it implements the AP64102's internal thermal shutdown at +160°C junction temperature, verified via IR thermography during sustained 1A load tests with ambient ≤+40°C and proper PCB copper pour.