Diodes Incorporated PAM2423AECADJ-EVM

Overview

PAM2423AECADJ-EVM from Diodes Incorporated is an evaluation module for the PAM2423 - a 5.5A peak-current, 520kHz fixed-frequency current-mode PWM step-up DC-DC converter in SO-8EP package, featuring internal 24V MOSFET, adjustable output up to 24V, and integrated OVP, thermal shutdown, and programmable soft-start. It supports battery-powered equipment and TFT LCD monitors requiring compact, high-efficiency boost conversion.

For engineers reviewing the PAM2423AECADJ-EVM datasheet, PAM2423AECADJ-EVM pinout, PAM2423AECADJ-EVM application, or PAM2423AECADJ-EVM equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, and OEM-grade supply support - all grounded in Diodes' DS36383 Rev. 5–2 documentation.

Technical Context

The PAM2423AECADJ-EVM implements a nonsynchronous boost topology with external Schottky diode and inductor, operating at 520kHz fixed frequency and supporting pulse-skipping mode at light loads to maintain efficiency. Its control loop uses current-mode PWM with internal error amplifier compensation via COMP pin and voltage feedback regulated to 1.262V at FB.

It enables precise startup control through SS pin (4.5µA charge current), provides open-loop protection by disabling when FB < 0.2V, and enforces safety via cycle-by-cycle current limit (5.5A peak), thermal shutdown at +160°C, and undervoltage lockout at 2.5V with 200mV hysteresis.

Key Specifications

Availability

PAM2423AECADJ-EVM is available at Aetrix Electronics and suitable for TFT LCD monitor power rails, portable medical device battery boost stages, DSL/cable modem auxiliary supplies, and industrial handheld terminals requiring stable component supply and rapid prototyping validation.

Supply support for PAM2423AECADJ-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 high-efficiency power management, signal integrity, and protection solutions for industrial, consumer, and automotive markets.

The PAM242x series belongs to Diodes' high-current boost converter product line, designed specifically for space-constrained applications needing reliable, adjustable 3–24V outputs from single-cell Li-ion or multi-cell alkaline inputs.

FAQ

What is the primary function of the PAM2423AECADJ-EVM?

The PAM2423AECADJ-EVM is an evaluation module for the PAM2423 boost controller IC. It allows engineers to validate performance, optimize external component selection (inductor, Schottky diode, feedback resistors), and verify layout practices before integrating into final designs - especially for battery-powered systems requiring 5.5A peak output current.

Does the PAM2423AECADJ-EVM include the PAM2423 IC?

Yes, the PAM2423AECADJ-EVM board integrates the active PAM2423AECADJR IC in SO-8EP package, pre-mounted with standard external components including input/output capacitors, feedback resistors, soft-start capacitor, and test points for VIN, VOUT, SW, FB, and EN signals.

Can the output voltage be adjusted on this EVM?

Yes - the EVM features a configurable feedback network using two 0603 resistors (R1/R2) that set output voltage per VOUT = 1.262V × (1 + R1/R2). Default configuration yields ~12V, but users can replace R1/R2 to achieve any value from 3.3V to 24V within the IC's specification limits.

Is thermal management supported on the PAM2423AECADJ-EVM?

Yes - the EVM uses the SO-8EP package with exposed thermal pad soldered to a dedicated copper pour connected to PGND and AGND planes. The board layout follows Diodes' recommended pad dimensions and thermal vias to maximize heat dissipation, enabling full 5.5A peak current capability under proper airflow or heatsinking.