EN5339QI

EN5339QI – Altera 3A Non-Isolated PoL DC-DC Converter Module

The EN5339QI from Altera (now part of Intel) is a high-efficiency, non-isolated point-of-load (PoL) DC-DC converter module engineered for space-constrained commercial applications. Designed to deliver precise voltage regulation with minimal power loss, this compact solution simplifies power management in advanced electronic systems while optimizing thermal performance.

Key Features

Output Current: Up to 3A continuous
Input Voltage Range: 2.4V to 5.5V
Adjustable Output: 0.6V to 4.6V (±1.5% accuracy)
Peak Efficiency: 95% (reducing thermal stress)
Protections: OCP, OTP, SCP, UVLO
Control Interface: Enable pin (Active High)
Operating Temperature: -40°C to 85°C

Technical Specifications
Part of Altera’s Enpirion® 5300 series, this 24-PowerTQFN module (6.0mm x 4.0mm x 1.1mm) integrates MOSFETs, inductors, and controllers into a single surface-mount package. Its non-isolated buck topology supports remote on/off functionality and provides stable power for noise-sensitive loads. The module’s ultra-thin 1.1mm profile makes it ideal for height-restricted designs.

Typical Applications

FPGA/ASIC core voltage regulation
Server and data storage power subsystems
Industrial automation controllers
Portable medical diagnostic equipment
5G infrastructure and networking hardware

About Altera
Altera, acquired by Intel in 2015, pioneered programmable logic and power integration technologies for over three decades. The Enpirion® power product line exemplifies their commitment to solving complex power challenges through highly integrated, thermally efficient solutions.