Diodes Incorporated AP61102Z6-EVM

Overview

AP61102Z6-EVM from Diodes Incorporated is an evaluation board for the AP61102 1A synchronous buck converter, supporting 2.3V–5.5V input and programmable 0.6V–5.5V output. It integrates 120mΩ/80mΩ MOSFETs, uses constant-on-time (COT) control, delivers 94% peak efficiency at 1.8V/1A, and features a Power Good indicator and selectable PFM/PWM modulation via EN pin. Designed for rapid validation of point-of-load power in consumer and embedded systems.

For engineers reviewing the AP61102Z6-EVM datasheet, AP61102Z6-EVM schematic, AP61102Z6-EVM test setup, or AP61102Z6-EVM alternative evaluation boards, this page provides verified layout details, measured performance data (efficiency vs. load, output ripple at 1A), BOM with Würth inductor 74438356010, and step-by-step quick-start guidance for 1.8V configuration.

Technical Context

The AP61102Z6-EVM implements the AP61102 IC in SOT563 package with fixed 1.8V output using R1=200kΩ/R2=100kΩ feedback divider. It operates at 2.2MHz switching frequency with COT control architecture enabling fast transient response and low output voltage ripple (<15mVpp at 1A, as measured).

Board-level design includes 10µF X5R ceramic input/output capacitors (0805, 10V/6.3V), 33pF feedforward capacitor, and a 1.0µH shielded inductor rated >3A saturation current. Power sequencing is controlled via jumper-selectable EN logic level, and PG signal is routed to test point for system monitoring.

Key Specifications

Availability

AP61102Z6-EVM is available at Aetrix Electronics and suitable for FPGA power sequencing, network camera DC-DC validation, and wireless router PoL design requiring stable component supply and traceable evaluation hardware.

Supply support for AP61102Z6-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, analog ICs, and power management solutions, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

The AP61102 product line targets space-constrained, high-efficiency point-of-load applications in consumer electronics and smart home devices, emphasizing ultra-low quiescent current (14µA in PFM) and simplified external component count.

FAQ

What input voltage range does the AP61102Z6-EVM support?

The AP61102Z6-EVM supports 2.3V to 5.5V DC input, matching the AP61102 IC's operational range. It is configured for 5V nominal input in the default test setup, with absolute maximum VIN rating up to +6.0V DC per datasheet Absolute Maximum Ratings.

How is output voltage set on this evaluation board?

The board is factory-configured for 1.8V output using a precision 200kΩ/100kΩ resistor divider (R1/R2) connected to the FB pin. The reference voltage is 0.6V ±2%, and the output equation V_OUT = 0.6V × (1 + R1/R2) yields 1.8V. Resistor tolerance is 1% for accuracy.

Can the AP61102Z6-EVM be used to evaluate other output voltages?

Yes - the feedback resistors are accessible and replaceable. To change output voltage, substitute R1 and/or R2 per the formula V_OUT = 0.6V × (1 + R1/R2), maintaining 1% tolerance and ensuring R2 remains within recommended values (e.g., 100kΩ for 1.8V). No PCB modification is required.

Does the board include protection features from the AP61102 IC?

Yes - all integrated protections are active and testable: overvoltage protection (OVP), undervoltage lockout (UVLO), overcurrent protection (OCP), thermal shutdown, and Power Good (PG) signaling. PG status is available at a dedicated test point and toggles high when V_OUT is within ±10% of target.