Diodes Incorporated AP61202Z6-EVM

Overview

AP61202Z6-EVM from Diodes Incorporated is an evaluation board for the AP61202 1A synchronous buck converter, designed to demonstrate fast transient response and low-noise DC-DC conversion from 2.3V–5.5V input to programmable 0.6V–3.6V output in SOT563 package. It supports forced PWM mode, features a 2.2MHz switching frequency, 0.6V ±2% reference, and integrated power-good indicator for point-of-load validation in space-constrained consumer and embedded systems.

For engineers reviewing the AP61202Z6-EVM datasheet, AP61202Z6-EVM pinout, AP61202Z6-EVM application, or AP61202Z6-EVM equivalent, this board enables rapid characterization of efficiency (up to 94% at 1A), output ripple (<15mV_PP at 2A), thermal behavior, and EN-controlled sequencing - critical for FPGA, network camera, and white goods power design.

Technical Context

The AP61202Z6-EVM implements Diodes' constant-on-time (COT) control architecture to deliver fast load-step response without external compensation. Its layout exposes VIN, VOUT, SW, EN, and FB test points, with pre-populated 1.0µH Würth 74438357010 inductor and 10µF ceramic input/output capacitors optimized for stability and EMI performance.

It operates across –40°C to +85°C ambient, supports 14µA quiescent current in PFM mode, and integrates UVLO (2.1V), VIN OVP (7.0V/400ms), peak/valley current limiting, and thermal shutdown - enabling robust evaluation under real-world line/load transients and fault conditions.

Key Specifications

Availability

AP61202Z6-EVM is available at Aetrix Electronics and suitable for FPGA core voltage sequencing, network camera sensor rail generation, and white goods MCU power domains requiring stable component supply, quick-turn prototyping, and production-ready reference validation.

Supply support for AP61202Z6-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 power management ICs, specializing in high-efficiency, small-footprint solutions for consumer, industrial, and computing applications.

The AP61202 product line delivers cost-optimized, easy-to-use synchronous buck converters targeting space-constrained point-of-load regulation in battery-powered and distributed power systems.

FAQ

What input voltage range does the AP61202Z6-EVM support?

The AP61202Z6-EVM supports 2.3V to 5.5V DC input, matching the AP61202 IC's operational range. It is validated with 5V input for 1.8V/2A output, and can be tested down to 2.3V with reduced output current capability due to duty-cycle limits and thermal constraints.

How is output voltage set on this evaluation board?

The board is factory configured for 1.8V using R1 = 200kΩ and R2 = 100kΩ (1% tolerance) per the AP61202's feedback equation V_OUT = 0.6V × (1 + R1/R2). Resistor pads allow reconfiguration for other voltages between 0.6V and 3.6V using values from Diodes' Table 1.

Does the AP61202Z6-EVM support forced PWM mode?

Yes - applying logic-high to the EN pin forces continuous PWM operation, disabling PFM mode. This ensures constant 2.2MHz switching during light loads, eliminating audible noise and maintaining predictable EMI profiles for sensitive RF or audio subsystems.

What protection functions are accessible for testing on this board?

All integrated protections are active and observable: undervoltage lockout triggers below ~2.1V input, VIN overvoltage protection activates above 7.0V (400ms rating), and thermal shutdown engages at ~150°C junction temperature - verified via IR imaging and load-step stress tests.